Prof. em. Dr. Samuel Leutwyler

Departement für Chemie, Biochemie und Pharmazie

E-Mail
samuel.leutwyler@unibe.ch
Büro
N514
Postadresse
Freiestrasse 3
CH - 3012 Bern

Links

  • 1975-79  Dr. phil.nat. (with E. Schumacher), Institut f. Anorgan. und Physikal. Chemie, Universität Bern, Switzerland.
  • 1979-80  Post-doc (with J. Jortner and U. Even), Chemistry Department, University of Tel-Aviv, Tel-Aviv, Israel.
  • 1980-84  Oberassistent (with Profs. E. Heilbronner, J.-P- Maier). Institut für Physikalische Chemie, Universität Basel, Switzerland.
  • 1984  Habilitation (Universität Basel).
  • 1985-90  Privatdozent/Lektor, Institut f. Anorgan. und Physikal. Chemie, Universität Bern.
  • 1990-2017  Professor of physical chemistry, Departement für Chemie und Biochemie, Universität Bern.
  • 1986  Nernst-Haber-Bodenstein Award (Bunsen-Gesellschaft für Physikalische Chemie, Germany).
  • 1989  Ruzicka Award (ETH Zürich, Switzerland).
  • 2002 & 2003: Teacher of the Year, Dept. f. Chemie und Biochemie, Univ. Bern.

 

  • Intermolecular interactions: Structures, vibrations and energetics of van der Waals and hydrogen-bonded complexes and clusters. UV and IR laser spectroscopy using linear and nonlinear methods, rotational coherence with ultrafast lasers.
  • Molecular-beam spectroscopy of nucleic acid base pair analogues.
  • Photoinduced proton and hydrogen atom transfer in clusters.

Journal Article

Knochenmuss, Richard; Sinha, Rajeev K.; Leutwyler, Samuel (2019). Face, Notch, or Edge? Intermolecular dissociation energies of 1-naphthol complexes with linear molecules. The Journal of Chemical Physics, 150(23), p. 234303. American Institute of Physics 10.1063/1.5100139

Siffert, Luca; Blaser, Susan; Ottiger, Philipp; Leutwyler, Samuel (2018). Transition from Water Wires to Bifurcated H-Bond Networks in 2-Pyridone·(H 2 O) n , n = 1–4 Clusters. Journal of physical chemistry. A, 122(48), pp. 9285-9297. American Chemical Society 10.1021/acs.jpca.8b09410

Knochenmuss, Richard; Sinha, Rajeev K.; Poblotzki, Anja; Den, Takuya; Leutwyler, Samuel (2018). Intermolecular dissociation energies of hydrogen-bonded 1-naphthol complexes. The Journal of Chemical Physics, 149(20), p. 204311. American Institute of Physics 10.1063/1.5055720

Knochenmuss, Richard; Maity, Surajit; Balmer, Franziska; Müller, Charlotte; Leutwyler, Samuel (2018). Intermolecular dissociation energies of 1-naphthol· n -alkane complexes. The Journal of Chemical Physics, 149(3), 034306. American Institute of Physics 10.1063/1.5034110

Knochenmuss, Richard; Sinha, Rajeev K.; Leutwyler, Samuel (2018). Intermolecular dissociation energies of dispersively bound complexes of aromatics with noble gases and nitrogen. The Journal of Chemical Physics, 148(13), p. 134302. American Institute of Physics 10.1063/1.5019432

Den, Takuya; Menzi, Samuel; Frey, Hans-Martin; Leutwyler, Samuel (2017). Accurate gas-phase structure of para -dioxane by fs Raman rotational coherence spectroscopy and ab initio calculations. The Journal of Chemical Physics, 147(7), 074306. American Institute of Physics 10.1063/1.4997633

Trachsel, Maria A.; Lobsiger, Simon; Schär, Tobias; Blancafort, Lluís; Leutwyler, Samuel (2017). Planarizing cytosine: The S 1 state structure, vibrations, and nonradiative dynamics of jet-cooled 5,6-trimethylenecytosine. The Journal of Chemical Physics, 146(24), p. 244308. American Institute of Physics 10.1063/1.4989465

Balmer, Franziska; Kopec, Sabine; Köppel, Horst; Leutwyler, Samuel (2017). Excitonic Splitting and Vibronic Coupling Analysis of the m -Cyanophenol Dimer. Journal of physical chemistry. A, 121(1), pp. 73-87. American Chemical Society 10.1021/acs.jpca.6b10416

Knochenmuss, Richard; Maity, Surajit; Féraud, Géraldine; Leutwyler, Samuel (2017). Measuring Intermolecular Binding Energies by Laser Spectroscopy. CHIMIA, 71(1), pp. 7-12. Schweizerische Chemische Gesellschaft 10.2533/chimia.2017.7

Blaser, Susan; Trachsel, Maria Angela; Lobsiger, Simon; Wiedmer, Timo; Frey, Hans-Martin; Leutwyler, Samuel (2016). Gas-Phase Cytosine and Cytosine-N 1 -Derivatives Have 0.1–1 ns Lifetimes Near the S 1 State Minimum. The journal of physical chemistry letters, 7(5), pp. 752-757. American Chemical Society 10.1021/acs.jpclett.6b00017

Balmer, Franziska; Ottiger, Philipp; Leutwyler, Samuel (2016). Do Hydrogen Bonds Influence Excitonic Splittings? CHIMIA, 70(4), pp. 284-287. Schweizerische Chemische Gesellschaft 10.2533/chimia.2016.284

Frey, Jann; Holzer, Christof; Klopper, Wim; Leutwyler, Samuel (2016). Experimental and Theoretical Determination of Dissociation Energies of Dispersion-Dominated Aromatic Molecular Complexes. Chemical reviews, 116(9), pp. 5614-5641. American Chemical Society 10.1021/acs.chemrev.5b00652

Maity, Surajit; Knochenmuss, Richard Donald; Holzer, Christof; Feraud, Géraldine; Frey, Jann; Klopper, Wim; Leutwyler, Samuel (2016). Accurate dissociation energies of two isomers of the 1-naphthol⋅cyclopropane complex. The Journal of Chemical Physics, 145(16), p. 164304. American Institute of Physics 10.1063/1.4965821

Trachsel, Maria Angela; Wiedmer, Timo; Blaser, Susan; Frey, Hans-Martin; Li, Quansong; Ruiz-Barragan, Sergi; Blancafort, Lluís; Leutwyler, Samuel (2016). The excited-state structure, vibrations, lifetimes, and nonradiative dynamics of jet-cooled 1-methylcytosine. The Journal of Chemical Physics, 145(13), p. 134307. American Institute of Physics 10.1063/1.4964091

Maity, Surajit; Ottiger, Philipp; Balmer, Franziska; Knochenmuss, Richard Donald; Leutwyler, Samuel (2016). Intermolecular dissociation energies of dispersively bound 1-naphthol⋅cycloalkane complexes. The Journal of Chemical Physics, 145(24), p. 244314. American Institute of Physics 10.1063/1.4973013

Lobsiger, Simon; Etinski, Mihajlo; Blaser, Susan; Frey, Hans-Martin; Marian, Christel; Leutwyler, Samuel (2015). Intersystem crossing rates of S1 state keto-amino cytosine at low excess energy. The Journal of Chemical Physics, 143(23), p. 234301. American Institute of Physics 10.1063/1.4937375

Kowalewski, Philipp; Frey, Hans-Martin; Infanger, Daniel; Leutwyler, Samuel (2015). Probing the Structure, Pseudorotation, and Radial Vibrations of Cyclopentane by Femtosecond Rotational Raman Coherence Spectroscopy. Journal of physical chemistry. A, 119(45), pp. 11215-11225. American Chemical Society 10.1021/acs.jpca.5b07930

Balmer, Franziska; Ottiger, Philipp; Leutwyler, Samuel (2015). Experimental and Calculated Spectra of π-Stacked Mild Charge-Transfer Complexes: Jet-Cooled Perylene·(Tetrachloroethene) n , n = 1,2. Journal of physical chemistry. A, 119(42), pp. 10462-10474. American Chemical Society 10.1021/acs.jpca.5b08225

Den, Sebastian Takuya; Frey, Hans-Martin; Felker, Peter M.; Leutwyler, Samuel (2015). Rotational constants and structure of para-difluorobenzene determined by femtosecond Raman coherence spectroscopy: A new transient type. The Journal of Chemical Physics, 143(14), pp. 144306-1. American Institute of Physics 10.1063/1.4932602

Trachsel, Maria Angela; Ottiger, Philipp; Frey, Hans-Martin; Pfaffen, Chantal; Bihlmeier, Angela; Klopper, Wim; Leutwyler, Samuel (2015). Modeling the Histidine–Phenylalanine Interaction: The NH···π Hydrogen Bond of Imidazole·Benzene. Journal of physical chemistry - B, 119(25), pp. 7778-7790. American Chemical Society 10.1021/jp512766r

Balmer, Franziska; Trachsel, Maria Angela; van der Avoird, Ad; Leutwyler, Samuel (2015). The elusive S2 state, the S1/S2 splitting, and the excimer states of the benzene dimer. The Journal of Chemical Physics, 142(23), p. 234306. American Institute of Physics 10.1063/1.4922608

Kopec, Sabine; Ottiger, Philipp; Leutwyler, Samuel; Köppel, Horst (2015). Analysis of the S2←S0 vibronic spectrum of the ortho-cyanophenol dimer using a multimode vibronic coupling approach. The Journal of Chemical Physics, 142(8), 084308. American Institute of Physics 10.1063/1.4913363

Ottiger, Philipp; Köppel, Horst; Leutwyler, Samuel (2015). Excitonic splittings in molecular dimers: why static ab initio calculations cannot match them. Chemical Science, 6(11), pp. 6059-6068. The Royal Society of Chemistry 10.1039/c5sc02546j

Balmer, Franziska A.; Ottiger, Philipp; Leutwyler, Samuel (2014). Excitonic Splitting, Delocalization, and Vibronic Quenching in the Benzonitrile Dimer. Journal of physical chemistry. A, 118(47), pp. 11253-11261. American Chemical Society 10.1021/jp509626b

Den, Sebastian Takuya; Frey, Hans-Martin; Leutwyler, Samuel (2014). Accurate rotational constant and bond lengths of hexafluorobenzene by femtosecond rotational Raman coherence spectroscopy and ab initio calculations. The Journal of Chemical Physics, 141(19), p. 194303. American Institute of Physics 10.1063/1.4901284

Lobsiger, Simon; Blaser, Susan; Sinha, Rajeev K.; Frey, Hans-Martin; Leutwyler, Samuel (2014). Switching on the fluorescence of 2-aminopurine by site-selective microhydration. Nature chemistry, 6(11), pp. 989-993. Nature Publishing Group 10.1038/NCHEM.2086

Ahnen, Sandra; Hehn, Anna-Sophia; Vogiatzis, Konstantinos D.; Trachsel, Maria Angela; Leutwyler, Samuel; Klopper, Wim (2014). Accurate computations of the structures and binding energies of the imidazole ... benzene and pyrrole ... benzene complexes. Chemical physics, 441, pp. 17-22. Elsevier 10.1016/j.chemphys.2014.05.023

Blaser, Susan; Frey, Hans-Martin; Heid, Cornelia G.; Leutwyler, Samuel (2014). Gas-phase Lifetimes of Nucleobase Analogues by Picosecond Pumpionization and Streak Techniques. CHIMIA, 68(4), pp. 260-263. Bern: Schweizerische Chemische Gesellschaft 10.2533/chimia.2014.260

Lobsiger, Simon; Trachsel, Maria Angela; Den, Sebastian Takuya; Leutwyler, Samuel (2014). Excited-State Structure, Vibrations, and Nonradiative Relaxation of Jet-Cooled 5-Fluorocytosine. Journal of physical chemistry - B, 118(11), pp. 2973-2984. American Chemical Society 10.1021/jp500410s

Trachsel, Maria Angela; Lobsiger, Simon; Schär, Tobias; Leutwyler, Samuel (2014). Low-lying excited states and nonradiative processes of 9-methyl-2-aminopurine. The Journal of Chemical Physics, 140(4), 044331. American Institute of Physics 10.1063/1.4862913

Frey, Jann; Ottiger, Philipp; Leutwyler, Samuel (2014). Watson–Crick and Sugar-Edge Base Pairing of Cytosine in the Gas Phase: UV and Infrared Spectra of Cytosine·2-Pyridone. Journal of physical chemistry - B, 118(3), pp. 682-691. American Chemical Society 10.1021/jp409660b

Balmer, Franziska; Ottiger, Philipp; Pfaffen, Chantal; Leutwyler, Samuel (2013). Structure and Intermolecular Vibrations of Perylene· trans -1,2-Dichloroethene, a Weak Charge-Transfer Complex. Journal of physical chemistry. A, 117(41), pp. 10702-10713. American Chemical Society 10.1021/jp4069043

Lobsiger, Simon; Sinha, Rajeev K.; Leutwyler, Samuel (2013). Building Up Water-Wire Clusters: Isomer-Selective Ultraviolet and Infrared Spectra of Jet-Cooled 2-Aminopurine (H 2 O) n , n = 2 and 3. Journal of physical chemistry - B, 117(41), pp. 12410-12421. American Chemical Society 10.1021/jp407127c

Blaser, Susan; Ottiger, Philipp; Frey, Hans-Martin; Leutwyler, Samuel (2013). NH3 as a Strong H-Bond Donor in Singly- and Doubly-Bridged Ammonia Solvent Clusters: 2 Pyridone center dot(NH3)(n), n=1-3. Journal of physical chemistry. A, 117(32), pp. 7523-7534. American Chemical Society 10.1021/jp401786f

Lobsiger, Simon; Trachsel, Maria Angela; Frey, Hans-Martin; Leutwyler, Samuel (2013). Excited-State Structure and Dynamics of Keto–Amino Cytosine: The 1 ππ* State Is Nonplanar and Its Radiationless Decay Is Not Ultrafast. Journal of physical chemistry - B, 117(20), pp. 6106-6115. American Chemical Society 10.1021/jp401881b

Winter, Nina O. C.; Graf, Nora K.; Leutwyler, Samuel; Hättig, Christof (2013). Benchmarks for 0–0 transitions of aromatic organic molecules: DFT/B3LYP, ADC(2), CC2, SOS-CC2 and SCS-CC2 compared to high-resolution gas-phase data. Physical Chemistry Chemical Physics, 15(18), pp. 6623-6630. Royal Society of Chemistry 10.1039/c2cp42694c

Kopec, Sabine; Ottiger, Philipp; Leutwyler, Samuel; Köppel, Horst (2012). Vibrational quenching of excitonic splittings in H-bonded molecular dimers: Adiabatic description and effective mode approximation. The Journal of Chemical Physics, 137(18), p. 184312. Melville, N.Y.: American Institute of Physics 10.1063/1.4763979

Lobsiger, Simon; Leutwyler, Samuel (2012). The Adiabatic Ionization Energy and Triplet T1 Energy of Jet-Cooled Keto-Amino Cytosine. The journal of physical chemistry letters, 3(23), pp. 3576-3580. Washington, D.C.: American Chemical Society 10.1021/jz301719h

Ottiger, Philipp; Leutwyler, Samuel (2012). Excitonic splitting and coherent electronic energy transfer in the gas-phase benzoic acid dimer. The Journal of Chemical Physics, 137(20), p. 204303. Melville, N.Y.: American Institute of Physics 10.1063/1.4767400

Ottiger, Philipp; Leutwyler, Samuel; Köppel, Horst (2012). Vibrational quenching of excitonic splittings in H-bonded molecular dimers: The electronic Davydov splittings cannot match experiment. The Journal of Chemical Physics, 136(17), p. 174308. Melville, N.Y.: American Institute of Physics 10.1063/1.4705119

Sinha, Rajeev K.; Lobsiger, Simon; Leutwyler, Samuel (2012). Isomer- and Species-Selective Infrared Spectroscopy of Jet-Cooled 7H- and 9H-2-Aminopurine and 2-Aminopurine·H2O Clusters. Journal of physical chemistry. A, 116(4), pp. 1129-1136. Washington, D.C.: American Chemical Society 10.1021/jp2077177

Trachsel, Maria A.; Lobsiger, Simon; Leutwyler, Samuel (2012). Out-of-Plane Low-Frequency Vibrations and Nonradiative Decay in the 1ππ* State of Jet-Cooled 5-Methylcytosine. Journal of physical chemistry - B, 116(36), pp. 11081-11091. Washington, D.C.: American Chemical Society 10.1021/jp305688m

Ulrich, T.; Ammann, M.; Leutwyler, S.; Bartels-Rausch, T. (2012). The adsorption of peroxynitric acid on ice between 230 K and 253 K. Atmospheric chemistry and physics, 12(4), pp. 1833-1845. Katlenburg-Lindau (D): European Geosciences Union 10.5194/acp-12-1833-2012

Blaser, Susan; Ottiger, Philipp; Lobsiger, Simon; Frey, Hans-Martin; Leutwyler, Samuel (2011). Intermolecular Clamping by Hydrogen Bonds: 2-Pyridone center dot NH3. ChemPhysChem, 12(10), pp. 1841-1850. Weinheim: Wiley-VCH 10.1002/cphc.201100037

Brugger, G.; Frey, H. M.; Steinegger, P.; Balmer, F.; Leutwyler, S. (2011). Accurate Determination of the Structure of Cyclohexane by Femtosecond Rotational Coherence Spectroscopy and Ab Initio Calculations. Journal of physical chemistry. A, 115(34), pp. 9567-9578. Washington, D.C.: American Chemical Society 10.1021/jp2001546

Brügger, Georges; Frey, Hans-Martin; Steinegger, Patrick; Kowalewski, Philipp; Leutwyler, Samuel (2011). Femtosecond Rotational Raman Coherence Spectroscopy of Cyclohexane in a Pulsed Supersonic Jet. Journal of physical chemistry. A, 115(44), pp. 12380-12389. Washington, D.C.: American Chemical Society 10.1021/jp207290g

Heid, C. G.; Ottiger, P.; Leist, R.; Leutwyler, S. (2011). The S-1/S-2 exciton interaction in 2-pyridone center dot 6-methyl-2-pyridone: Davydov splitting, vibronic coupling, and vibronic quenching. The Journal of Chemical Physics, 135(15), p. 154311. Melville, N.Y.: American Institute of Physics 10.1063/1.3652759

Lobsiger, Simon; Frey, Hans-Martin; Leutwyler, Samuel; Morgan, Philip; Pratt, David (2011). S-0 and S-1 State Structure, Methyl Torsional Barrier Heights, and Fast Intersystem Crossing Dynamics of 5-Methyl-2-hydroxypyrimidine. Journal of physical chemistry. A, 115(46), pp. 13281-13290. Washington, D.C.: American Chemical Society 10.1021/jp207213c

Lobsiger, S.; Sinha, R. K.; Trachsel, M.; Leutwyler, S. (2011). Low-lying excited states and nonradiative processes of the adenine analogues 7H-and 9H-2-aminopurine. The Journal of Chemical Physics, 134(11), p. 114307. Melville, N.Y.: American Institute of Physics 10.1063/1.3567090

Ottiger, P.; Leutwyler, S. (2011). Excitonic Splittings in Jet-Cooled Molecular Dimers. CHIMIA, 65(4), pp. 228-230. Bern: Schweizerische Chemische Gesellschaft 10.2533/chimia.2011.228

Pfaffen, C.; Infanger, D.; Ottiger, P.; Frey, H. M.; Leutwyler, S. (2011). N-H center dot center dot center dot pi hydrogen-bonding and large-amplitude tipping vibrations in jet-cooled pyrrole-benzene. Physical Chemistry Chemical Physics, 13(31), pp. 14110-14118. Cambridge: Royal Society of Chemistry 10.1039/c1cp20793h

Sinha, R. K.; Lobsiger, S.; Trachsel, M.; Leutwyler, S. (2011). Vibronic Spectra of Jet-Cooled 2-Aminopurine center dot H2O Clusters Studied by UV Resonant Two-Photon Ionization Spectroscopy and Quantum Chemical Calculations. Journal of physical chemistry. A, 115(23), pp. 6208-6217. Washington, D.C.: American Chemical Society 10.1021/jp111469n

Jaggi, Michael; Blum, Carmen; Marti, Basil S.; Liu, Shi-Xia; Leutwyler, Samuel; Decurtins, Silvio (2010). Annulation of Tetrathiafulvalene to the Bay Region of Perylenediimide. Organic letters, 12(6), pp. 1344-1347. Washington, D.C.: American Chemical Society 10.1021/ol1002708

Kummli, Dominique S.; Frey, Hans-Martin; Leutwyler, Samuel (2010). Accurate determination of the structure of 1,3,5-trifluorobenzene by femtosecond rotational Raman coherence spectroscopy and ab initio calculations. Chemical physics, 367(1), pp. 36-43. Amsterdam: Elsevier 10.1016/j.chemphys.2009.10.017

Lobsiger, Simon; Frey, Hans-Martin; Leutwyler, Samuel (2010). Supersonic jet UV spectrum and nonradiative processes of the thymine analogue 5-methyl-2-hydroxypyrimidine. Physical Chemistry Chemical Physics, 12(19), pp. 5032-5040. Cambridge: Royal Society of Chemistry 10.1039/b924395j

Pfaffen, Chantal; Frey, Hans-Martin; Ottiger, Philipp; Leutwyler, Samuel; Bachorz, Rafal A.; Klopper, Wim (2010). Large-amplitude vibrations of an N-H center dot center dot center dot pi hydrogen bonded cis-amide-benzene complex. Physical Chemistry Chemical Physics, 12(29), pp. 8208-8218. Cambridge: Royal Society of Chemistry 10.1039/c002056g

Guégano, Xavier; Kanibolotsky, Alexander L.; Blum, Carmen; Mertens, Stijn F. L.; Liu, Shi-Xia; Neels, Antonia; Hagemann, Hans; Skabara, Peter J.; Leutwyler, Samuel; Wandlowski, Thomas; Hauser, Andreas; Decurtins, Silvio (2009). Pronounced electrochemical amphotericity of a fused donor-acceptor compound: a planar merge of TTF with a TCNQ-type bithienoquinoxaline. Chemistry - a European journal, 15(1), pp. 63-66. Weinheim: Wiley-VCH 10.1002/chem.200802011

Ottiger, Philipp; Pfaffen, Chantal; Leist, Roman; Leutwyler, Samuel; Bachorz, Rafal A.; Klopper, Wim (2009). Strong N-H pi Hydrogen Bonding in Amide-Benzene Interactions. Journal of physical chemistry - B, 113(9), pp. 2937-2943. Washington, D.C.: American Chemical Society 10.1021/jp8110474

Ottiger, Philipp; Frey, Jann A.; Frey, Hans-Martin; Leutwyler, Samuel (2009). Jet-Cooled 2-Aminopyridine Dimer: Conformers and Infrared Vibrational Spectra. Journal of physical chemistry. A, 113(18), pp. 5280-5288. Washington, D.C.: American Chemical Society 10.1021/jp811359K

Fradelos, Georgios; Kaminski, Jakub W.; Wesolowski, Tomasz A.; Leutwyler, Samuel (2009). Cooperative Effect of Hydrogen-Bonded Chains in the Environment of a pi -> pi* Chromophore. Journal of physical chemistry. A, 113(36), pp. 9766-9771. Washington, D.C.: American Chemical Society 10.1021/jp906483z

Ottiger, Philipp; Leutwyler, Samuel; Köppel, Horst (2009). S1/S2 excitonic splittings and vibronic coupling in the excited state of the jet-cooled 2-aminopyridine dimer. The Journal of Chemical Physics, 131(20), p. 204308. Melville, N.Y.: American Institute of Physics 10.1063/1.3266937

Yi, Chenyi; Blum, Carmen; Liu, Shi-Xia; Ran, Ying-Fen; Frei, Gabriela; Neels, Antonia; Stoeckli-Evans, Helen; Calzaferri, Gion; Leutwyler, Samuel; Decurtins, Silvio (2008). A Layered Red-Emitting Chromophoric Organic Salt. Crystal growth & design, 8(8), pp. 3004-3009. Washington, D.C.: American Chemical Society 10.1021/cg800122v

Yi, Chenyi; Blum, Carmen; Liu, Shi-Xia; Frei, Gabriela; Neels, Antonia; Renaud, Philippe; Leutwyler, Samuel; Decurtins, Silvio (2008). An efficient and facile synthesis of highly substituted 2,6-dicyanoanilines. Journal of organic chemistry, 73(9), pp. 3596-3599. Washington, D.C.: American Chemical Society 10.1021/jo800260b

Yi, Chenyi; Blum, Carmen; Liu, Shi-Xia; Frei, Gabriela; Neels, Antonia; Stoeckli-Evans, Helen; Leutwyler, Samuel; Decurtins, Silvio (2008). An efficient one-pot synthesis of strongly fluorescent (hetero)arenes polysubstituted with amino and cyano groups. Tetrahedron, 64(40), pp. 9437-9441. Kidlington, UK: Elsevier Science 10.1016/j.tet.2008.07.084

Thut, Markus; Manca, Carine; Tanner, Christian; Leutwyler, Samuel (2008). Spectral tuning by switching C-H O hydrogen bonds: Rotation-induced spectral shifts of 7-hydroxyquinoline HCOOH isomers. The Journal of Chemical Physics, 128(2), p. 24304. Melville, N.Y.: American Institute of Physics 10.1063/1.2816710

Bachorz, Rafael A.; Bischoff, Florian A.; Höfener, Sebastian; Klopper, Wim; Ottiger, Philipp; Leist, Roman; Frey, Jann A.; Leutwyler, Samuel (2008). Scope and limitations of the SCS-MP2 method for stacking and hydrogen bonding interactions. Physical Chemistry Chemical Physics, 10(19), pp. 2758-2766. Cambridge: Royal Society of Chemistry 10.1039/b718494h

Thut, Markus; Tanner, Christian; Steinlin, Andreas; Leutwyler, Samuel (2008). Time-Dependent Density Functional Theory as a Tool for Isomer Assignments of Hydrogen-Bonded Solute Solvent Clusters. Journal of physical chemistry. A, 112(25), pp. 5566-5572. Washington, D.C.: American Chemical Society 10.1021/jp801044x

Kummli, Dominique S.; Lobsiger, Simon; Frey, Hans M.; Leutwyler, Samuel; Stanton, John F. (2008). Accurate Determination of the Structure of Cyclooctatetraene by Femtosecond Rotational Coherence Spectroscopy and ab Initio Calculations. Journal of physical chemistry. A, 112(38), pp. 9134-9143. Washington, D.C.: American Chemical Society 10.1021/jp803523y

Plowright, Richard J.; Watkins, Mark J.; Gardner, Adrian M.; Wright, Timothy G.; Breckenridge, W. H.; Wallimann, Franz; Leutwyler, Samuel (2008). Electronic spectroscopy of the Au(6p)-Kr complex. The Journal of Chemical Physics, 129(15), p. 154315. Melville, N.Y.: American Institute of Physics 10.1063/1.2987713

Jia, Chunyang; Liu, Shi-Xia; Tanner, Christian; Leiggener, Claudia; Neels, Antonia; Sanguinet, Lionel; Levillain, Eric; Leutwyler, Samuel; Hauser, Andreas; Decurtins, Silvio (2007). An Experimental and Computational Study on Intramolecular Charge Transfer. Chemistry - a European journal, 13(13), pp. 3804-3812. Weinheim: Wiley-VCH 10.1002/chem.200601561

Liu, Shi-Xia; Tanner, Christian; Leutwyler, Samuel; Bigler, Peter; Decurtins, Silvio (2007). An investigation of electronic structure and properties of a new chromophore: 3,3 -bithiazolo[3,4-a]pyridinium perchlorate. Journal of luminescence, 122-123, pp. 408-411. Amsterdam: North-Holland 10.1016/j.jlumin.2006.01.162

Frey, Jann A.; Müller, Andreas; Losada, Martin; Leutwyler, Samuel (2007). Isomers of the Uracil Dimer: An ab Initio Benchmark Study. Journal of physical chemistry - B, 111(13), 3534 - 3542. Washington, D.C.: American Chemical Society 10.1021/jp0683162

Leist, Roman; Frey, Jann A.; Ottiger, Philipp; Frey, Hans-Martin; Leutwyler, Samuel; Bachorz, Rafal; Wim, Klopper (2007). Nucleobase-Fluorobenzene Interactions: Hydrogen Bonding Wins over Stacking. Angewandte Chemie (International ed.), 46(39), pp. 7449-7452. Weinheim: Wiley-VCH 10.1002/anie.200701171

Kummli, Dominique S.; Frey, Hans M.; Leutwyler, Samuel (2007). High-accuracy structure of cyclobutane by femtosecond rotational Raman four-wave mixin. Journal of physical chemistry. A, 111(46), 11936 - 11942. Washington, D.C.: American Chemical Society 10.1021/jp076014+

Tanner, Christian; Thut, Markus; Steinlin, Andreas; Manca, Carine; Leutwyler, Samuel (2006). Excited-State Hydrogen-Atom Transfer along Solvent Wires: Water Molecules Stop the Transfer. Journal of physical chemistry. A, 110(5), pp. 1758-1766. Washington, D.C.: American Chemical Society 10.1021/jp056151b

Leist, Roman; Frey, Jann A.; Leutwyler, Samuel (2006). Fluorobenzene-Nucleobase Interactions: Hydrogen Bonding or -Stacking? Journal of physical chemistry. A, 110(12), pp. 4180-4187. Washington, D.C.: American Chemical Society 10.1021/jp057100h

Frey, Jann A.; Leist, Roman; Leutwyler, Samuel (2006). Hydrogen Bonding of the Nucleobase Mimic 2-Pyridone to Fluorobenzenes: An ab Initio Investigation. Journal of physical chemistry. A, 110(12), pp. 4188-4195. Washington, D.C.: American Chemical Society 10.1021/jp057101+

Kummli, Dominique S.; Frey, Hans M.; Leutwyler, Samuel (2006). Accurate Molecular Structure Determination by Femtosecond Degenerate Four-Wave Mixing. CHIMIA, 60(4), pp. 212-215. Bern: Schweizerische Chemische Gesellschaft 10.2533/000942906777674831

Jia, Chunyang; Liu, Shi-Xia; Tanner, Christian; Leiggener, Claudia; Sanguinet, Lionel; Levillain, Eric; Leutwyler, Samuel; Hauser, Andreas; Decurtins, Silvio (2006). A redox-active tri-star molecule: merging of TTF and HAT chemistry. Chemical communications, 17(17), p. 1878. Cambridge: Royal Society of Chemistry 10.1039/b601173j

Frey, Jann A.; Leist, Roman; Müller, Andreas; Leutwyler, Samuel (2006). Gas-Phase Watson-Crick and Hoogsteen Isomers of the Nucleobase Mimic 9-Methyladenine 2-Pyridone. ChemPhysChem, 7(7), pp. 1494-1499. Weinheim: Wiley-VCH 10.1002/cphc.200500692

Frey, Jann A.; Leist, Roman; Tanner, Christian; Frey, Hans-Martin; Leutwyler, Samuel (2006). 2-pyridone: The role of out-of-plane vibrations on the S1 S0 spectra and S1 state reactivity. The Journal of Chemical Physics, 125(11), p. 114308. Melville, N.Y.: American Institute of Physics 10.1063/1.2338042

Frey, Jann A.; Leutwyler, Samuel (2006). An ab Initio Benchmark Study of Hydrogen Bonded Formamide Dimers. Journal of physical chemistry. A, 110(45), pp. 12512-12518. Washington, D.C.: American Chemical Society 10.1021/jp064730q

Kummli, Dominique S.; Frey, Hans M.; Leutwyler, Samuel (2006). Femtosecond degenerate four-wave mixing of carbon disulfide: High-accuracy rotational constants. The Journal of Chemical Physics, 124(14), p. 144307. Melville, N.Y.: American Institute of Physics 10.1063/1.2186642

Liu, Shi-Xia; Tanner, Christian; Neels, Antonia; Dolder, Stefan; Leutwyler, Samuel; Renaud, Philippe; Bigler, Peter; Decurtins, Silvio (2004). Tetrathiafulvalenes Acting as Leaving Groups: A Route to Bithiazoles. Angewandte Chemie (International ed.), 43(36), pp. 4738-4741. Wiley-VCH 10.1002/anie.200460149

Conference or Workshop Item

Balmer, Franziska; Leutwyler, Samuel (2014). (Benzene) and (Benzonitrile)2: Excitonic and Site Effects on the S1/S2 Splitting. CHIMIA, 68(7/8), p. 557. Bern: Schweizerische Chemische Gesellschaft

Blaser, Susan; Leutwyler, Samuel (2014). Excited State Photophysics of Jet-Cooled 2-Aminopurine and 9-Methyl-2-Aminopurine. CHIMIA, 68(7/8), p. 557. Bern: Schweizerische Chemische Gesellschaft

Den, Sebastian Takuya; Leutwyler, Samuel (2014). Structure of n-Alkanes. CHIMIA, 68(7/8), p. 557. Bern: Schweizerische Chemische Gesellschaft

Kowalewski, Philipp; Leutwyler, Samuel (2014). Accurate Structure of n-Nonane by Femtosecond Rotational Raman Spectroscopy. CHIMIA, 68(7/8), p. 557. Bern: Schweizerische Chemische Gesellschaft

Siffert, Luca; Leutwyler, Samuel (2014). Nanohydration of a Cis-Amide: Water Wires and Bridges. CHIMIA, 68(7/8), p. 558. Bern: Schweizerische Chemische Gesellschaft

Trachsel, Maria Angela; Leutwyler, Samuel (2014). Supersonic Jet UV Spectra and Nonradiative Relaxation of Methylated Cytosines. CHIMIA, 68(7/8), p. 558. Bern: Schweizerische Chemische Gesellschaft

Kowalewski, Philipp; Frey, Hans-Martin; Leutwyler, Samuel (2013). Accurate Structure of n-Hexane by Femtosecond Rotational Raman Spectroscopy. CHIMIA, 67(7/8), p. 570. Bern: Schweizerische Chemische Gesellschaft

Blaser, Susan; Frey, Hans-Martin; Leutwyler, Samuel (2013). Fluorescence Lifetime Measurement of Nucleobase Analogues using a Picosecond Streak Camera. CHIMIA, 67(7/8), p. 574. Bern: Schweizerische Chemische Gesellschaft

Balmer, Franziska; Pfaffen, Chantal; Ottiger, Philipp; Leutwyler, Samuel (2013). Supersonic Jet Spectroscopy of Perylene Charge-Transfer Complexes. CHIMIA, 67(7/8), p. 577. Bern: Schweizerische Chemische Gesellschaft

Trachsel, Maria Angela; Blaser, Susan; Lobsiger, Simon; Leutwyler, Samuel (2013). S1 -> Tn Intersystem Crossing of 5,6-Trimethylenecytosine. CHIMIA, 67(7/8), p. 579. Bern: Schweizerische Chemische Gesellschaft

Den, Sebastian Takuya; Frey, Hans-Martin; Leutwyler, Samuel (2013). Femtosecond Rotational Coherence Spectroscopy of n-Alkanes. CHIMIA, 67(7/8), p. 581. Bern: Schweizerische Chemische Gesellschaft

Siffert, Luca; Ottiger, Philipp; Blaser, Susan; Leutwyler, Samuel (2013). Nanohydration of a Cis-Amide: Water Wires and Bridges. CHIMIA, 67(7/8), p. 581. Bern: Schweizerische Chemische Gesellschaft

Kowalewski, Philipp; Infanger, Daniel; Frey, Hans-Martin; Leutwyler, Samuel (2012). Investigating the pseudorotation of cyclopentane by femtosecond rotational Raman coherence spectroscopy. CHIMIA, 66(7/8), p. 608. Bern: Schweizerische Chemische Gesellschaft

Blaser, Susan; Ottiger, Philipp; Leutwyler, Samuel (2012). IR/UV-Depletion Spectroscopy of 2-Pyridone (NH3)n n=0-3 Clusters. CHIMIA, 66(7/8), p. 612. Bern: Schweizerische Chemische Gesellschaft

Trachsel, Maria; Lobsiger, Simon; Leutwyler, Samuel (2012). Methyl Torsional Bands of the Jet-Cooled Adenine Analogue 9-Methyl-2-Aminopurine. CHIMIA, 66(7/8), p. 613. Bern: Schweizerische Chemische Gesellschaft

Balmer, Franziska; Pfaffen, Chantal; Leutwyler, Samuel (2012). Supersonic Jet Spectroscopy of Weak Perylene-Based Charge-Transfer Complexes. CHIMIA, 66(7/8), p. 613. Bern: Schweizerische Chemische Gesellschaft

Ulrich, Thomas; Ammann, Markus; Leutwyler, Samuel; Bartels-Rausch, Thorsten (2011). The adsorption of HNO4 on ice and its temperature dependence. In: Seminar of the Laboratory of Radiochemistry and Environmental Chemistry, Paul Scherrer Institute and University of Berne, 25.3.2011.

Ulrich, Thomas; Ammann, Markus; Leutwyler, Samuel; Bartels Rausch, Thorsten (2011). The Adsorption of HNO4 on ice. In: European Geoscience Union General Assembly, Vienna, Austria, 3.-8.4.2011.

Blum, Carmen; Jaggi, Michael; Liu, Shi-Xia; Leutwyler, Samuel; Decurtins, Silvio (2010). Theoretical study on annulated donor-π-acceptor systems incorporating tetrathiafulvalene and perylenediimide units. CHIMIA, 64(7-8), p. 507. Bern: Schweizerische Chemische Gesellschaft

Ottiger, Philipp; Leutwyler, Samuel (2010). Exciton Splittings in Molecular Dimers. CHIMIA, 64(7-8), p. 568. Bern: Schweizerische Chemische Gesellschaft

Balmer, Franziska; Brügger, Georges; Steinegger, Patrick; Frey, Hans-Martin; Leutwyler, Samuel (2010). Femtosecond Degenerate Four-Wave Mixing of Cyclohexane and Deuterocyclohexane. CHIMIA, 64(7-8), p. 577. Bern: Schweizerische Chemische Gesellschaft

Steinegger, Patrick; Brügger, Georges; Balmer, Franziska; Frey, Hans-Martin; Leutwyler, Samuel (2010). Analysis of the Accuracy of the Raman Femtosecond Degenerate Four-Wave Mixing Technique. CHIMIA, 64(7-8), p. 577. Bern: Schweizerische Chemische Gesellschaft

Sinha, Rajeev Kumar; Lobsiger, Simon; Trachsel, Maria; Leutwyler, Samuel (2010). Excited state spectroscopy of jet cooled 2-aminopurine-(water)1,2 clusters. CHIMIA, 64(7-8), p. 581. Bern: Schweizerische Chemische Gesellschaft

Trachsel, Maria; Lobsiger, Simon; Sinha, Rajeev Kumar; Leutwyler, Samuel (2010). Supersonic Jet Spectroscopy of the Adenine Analogue 2-Aminopurine. CHIMIA, 64(7-8), p. 581. Bern: Schweizerische Chemische Gesellschaft

Lobsiger, Simon; Frey, Hans-Martin; Leutwyler, Samuel (2010). Jet Spectroscopy of the Deoxythymine Tautomers 5-Methyl-2-Hydroxypyrimidine and 5-Methyl-2-Pyrimidinone. CHIMIA, 64(7-8), p. 581. Bern: Schweizerische Chemische Gesellschaft

Blaser, Susan; Lobsiger, Simon; Ottiger, Philipp; Leutwyler, Samuel (2010). Intermolecular vibrations of 2-pyridone∙(NH3)n (n=1-3) clusters. CHIMIA, 64(7-8), p. 582. Bern: Schweizerische Chemische Gesellschaft

Pfaffen, Chantal; Frey, Hans-Martin; Ottiger, Philipp; Leutwyler, Samuel (2010). Large-amplitude vibrations of an N-H center dot center dot center dot pi hydrogen bonded cis-amide-benzene complex. CHIMIA, 64(7-8), p. 585. Bern: Schweizerische Chemische Gesellschaft

Infanger, Daniel; Pfaffen, Chantal; Leutwyler, Samuel (2010). Supersonic jet spectroscopy of unconventional N-H∙∙∙π hydrogen bonded complexes and clusters. CHIMIA, 64(7-8), p. 585. Bern: Schweizerische Chemische Gesellschaft

Blum, Carmen; Jaggi, Michael; Liu, Shi-Xia; Decurtins, Silvio; Leutwyler, Samuel (2009). The failure of the time-dependent DFT and CC2 methods to predict the absorption spectrum of a donor-acceptor dyad. CHIMIA, 63, p. 410. Bern: Schweizerische Chemische Gesellschaft

Fradelos, Georgios; Kaminski, Jakub W.; Wesolowski, Tomasz A.; Leutwyler, Samuel (2009). The Cooperative Effect of Hydrogen-Bonded Chains in the Environment of a pi -> pi* Chromophore. CHIMIA, 63, p. 477. Bern: Schweizerische Chemische Gesellschaft

Ottiger, Philipp; Leutwyler, Samuel (2009). Exciton splitting in the excited state of the jet-cooled 2-aminopyridine dimer. CHIMIA, 63, p. 486. Bern: Schweizerische Chemische Gesellschaft

Lobsiger, Simon; Frey, Hans-Martin; Leutwyler, Samuel (2009). Jet Spectrosopy of the Cytosine Analogue 5-Methyl-2-Pyrimidone. CHIMIA, 63, p. 487. Bern: Schweizerische Chemische Gesellschaft

Blaser, Susan; Lobsiger, Simon; Leutwyler, Samuel (2009). Intermolecular vibrations of 2-pyridone dot (NH3)n (n=1,2) clusters in the S1 state. CHIMIA, 63, p. 487. Bern: Schweizerische Chemische Gesellschaft

Pfaffen, Chantal; Ottiger, Philipp; Leutwyler, Samuel (2009). UV absorption spectroscopy of 2-pyridone dot benzene. CHIMIA, 63, p. 492. Bern: Schweizerische Chemische Gesellschaft

Steinegger, Patrick; Frey, Hans-Martin; Leutwyler, Samuel (2009). Fs-Rotational Raman Four-Wave Mixing of CO2 in a Pulsed Molecular Beam. CHIMIA, 63, p. 493. Bern: Schweizerische Chemische Gesellschaft