Publications of Gert von Helden

Seo, J., J. Jang, S. Warnke, S. Gewinner, W. Schöllkopf and G.von Helden: Stacking Geometries of Early Protoporphyrin IX Aggregates Revealed by Gas-Phase Infrared Spectroscopy. Journal of the American Chemical Society 138 (50), 16315–16321 (2016).

Seo, J., S. Warnke, S. Gewinner, W. Schöllkopf, M.T. Bowers, K. Pagel and G.von Helden: The impact of environment and resonance effects on the site of protonation of aminobenzoic acid derivatives. Physical Chemistry Chemical Physics 18 (36), 25474–25482 (2016).

Gonzalez Florez, A.I., D.-S. Ahn, S. Gewinner, W. Schöllkopf and G.von Helden: IR spectroscopy of protonated leu-enkephalin and its 18-crown-6 complex embedded in helium droplets. Physical Chemistry Chemical Physics 17 (34), 21902–21911 (2015).

Schubert, F., K. Pagel, M. Rossi, S. Warnke, M. Salwiczek, B. Koksch, G.von Helden, V. Blum, C. Baldauf and M. Scheffler: Native like helices in a specially designed β peptide in the gas phase. Physical Chemistry Chemical Physics 17 (7), 5376–5385 (2015).

Schubert, F., M. Rossi, C. Baldauf, K. Pagel, S. Warnke, G.von Helden, F. Filsinger, P. Kupser, G. Meijer, M. Salwiczek, B. Koksch, M. Scheffler and V. Blum: Exploring the conformational preferences of 20-residue peptides in isolation: Ac-Ala₁₉-Lys + H⁺ vs. Ac-Lys-Ala₁₉ + H⁺ and the current reach of DFT. Physical Chemistry Chemical Physics 17 (11), 7373–7385 (2015).

Urner, L.H., B.N.S. Thota, O. Nachtigall, S. Warnke, G.von Helden, R. Haag and K. Pagel: Online monitoring the isomerization of an azobenzene-based dendritic bolaamphiphile using ion mobility-mass spectrometry. Chemical Communications 51 (42), 8801–8804 (2015).

Warnke, S., G.von Helden and K. Pagel: Analyzing the higher order structure of proteins with conformer-selective ultraviolet photodissociation. Proteomics 15 (16), 2804–2812 (2015).

Warnke, S., J. Seo, J. Boschmans, F. Sobott, J.H. Scrivens, C. Bleiholder, M.T. Bowers, S. Gewinner, W. Schöllkopf, K. Pagel and G.von Helden: Protomers of Benzocaine: Solvent and Permittivity Dependence. Journal of the American Chemical Society 137 (12), 4236–4242 (2015).

Warnke, S., C. Baldauf, M.T. Bowers, K. Pagel and G.von Helden: Photodissociation of Conformer-Selected Ubiquitin Ions Reveals Site-Specific Cis/Trans Isomerization of Proline Peptide Bonds. Journal of the American Chemical Society 136 (29), 10308–10314 (2014).

Baldauf, C., K. Pagel, S. Warnke, G.von Helden, B. Koksch, V. Blum and M. Scheffler: How Cations Change Peptide Structure. Chemistry-a European Journal 19 (34), 11224–11234 (2013).

Schnell, M., P. Bunker, G.von Helden, J.-U. Grabow, G. Meijer and A. van der Avoird: Stark Effect in the Benzene Dimer. The Journal of Physical Chemistry A 117 (50), 13775–13778 (2013).

Schnell, M., U. Erlekam, P. Bunker, G.von Helden, J.-U. Grabow, G. Meijer and A.van der Avoird: Unraveling the internal dynamics of the benzene dimer: a combined theoretical and microwave spectroscopy study. Physical Chemistry Chemical Physics 15 (25), 10207–10223 (2013).

Schnell, M., U. Erlekam, P. Bunker, G.von Helden, J.-U. Grabow, G. Meijer and A.van der Avoird: Structure of the Benzene Dimer - Governed by Dynamics. Angewandte Chemie International Edition 52 (19), 5180–5183 (2013).

Schnell, M., U. Erlekam, P. Bunker, G.von Helden, J.-U. Grabow, G. Meijer and A.van der Avoird: Die Struktur des Benzoldimers – die Dynamik gewinnt. Angewandte Chemie 125 (19), 5288–5292 (2013).

Warnke, S., G.von Helden and K. Pagel: Communication: Protein Structure in the Gas Phase: The Influence of Side-Chain Microsolvation. Journal of the American Chemical Society 135 (4), 1177–1180 (2013).

Filsinger, F., D.-S. Ahn, G. Meijer and G.von Helden: Photoexcitation of mass/charge selected hemin⁺, caught in helium nanodroplets. Physical Chemistry Chemical Physics 14 (38), 13370–13377 (2012).

Avoird, A.van der, R. Podeszwa, K. Szalewicz, C. Leforestier, R.van Harrevelt, P. Bunker, M. Schnell, G.von Helden and G. Meijer: Vibration–rotation-tunneling states of the benzene dimer: an ab initio study. Physical Chemistry Chemical Physics 12 (29), 8219–8240 (2010).

Bakker, J.M., V.J.F. Lapoutre, B. Redlich, J. Oomens, B.G. Sartakov, A. Fielicke, G.von Helden, G. Meijer and A.F.G.van der Meer: Intensity-resolved IR multiple photon ionization and fragmentation of C₆₀. The Journal of Chemical Physics 132 (7), 074305 (2010).

Bierau, F., P. Kupser, G. Meijer and G.von Helden: Catching proteins in liquid helium droplets. Physical Review Letters 105 (13), 133402 (2010).

Kirilyuk, A., A. Fielicke, K. Demyk, G.von Helden, G. Meijer and T. Rasing: Ferrimagnetic cagelike Fe₄O₆ cluster: Structure determination from infrared dissociation spectroscopy. Physical Review B, Rapid Comm. 82 (2), 020405–1-020405–4 (2010).