Structure and dynamic of aromatic cations and their hydrogen-bonded clusters

• Applicant: Professor Dr. Markus Gerhards (†)
• Subject Area: Biological and Biomimetic Chemistry
• Term: from 1999 to 2009
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 5175424

• Final Report Year: 2008

Final Report Abstract

No abstract available

Publications

• Structure and vibrations of dihydroxybenzene cations and ionization potentials of dihydroxybenzenes studied by mass analyzed threshold ionization and infrared photoinduced Rydberg ionization spectroscopy as well as ab initio theory. Chem. Phys. 111, 7966 (1999)
  M. Gerhards, C. Unterberg, S. Schumm
  
• Structures of catechol(H2O)1,3 clusters in the S0 and D0 states. Phys. Chem. Chem. Phys. 2, 5538 (2000)
  M. Gerhards, C. Unterberg, K. Kleinermanns
  
• Ultraviolet/infrared-double resonance spectroscopy and ab initio calculations on the indole+ and indole(H2O)1+ cations. J. Chem. Phys. 113, 7945 (2000)
  C. Unterberg, A. Jansen, M. Gerhards
  
• Anharmonic vibrational frequencies of proton transfer coordinates in the clusters of aromatic molecules with water. J. Chem. Phys. 115, 5445 (2001)
  A. Jansen, M. Gerhards
  
• IR-double resonance spectroscopy applied to the 4-aminophenoI(H2O)1 cluster. Appl. Phys. A-Mater 72, 273 (2001)
  M. Gerhards, C. Unterberg
  
• OH stretching vibrations ofthe phenol(H2O)1+ cation. Chem. Phys. Lett. 344, 113 (2001)
  M. Gerhards, C. Unterberg, A. Jansen, K. Kleinermanns
  
• Clusters of a protected amino acid with pyrazole derivatives: ß-sheet model systems in the gas phase. Eur. Phys. J. D. 20, 543 (2002)
  C. Unterberg, A. Gerlach, T. Schrader, M. Gerhards
  
• Structure of a ß-sheet model system in the gas phase: Analysis of the C=0 stretching vibrations. Phys. Chem. Chem. Phys. 4, 5563 (2002)
  M. Gerhards, C. Unterberg, A. Gerlach
  
• Structures of the protected amino acid Ac-Phe-OMe and its dimer: A ß-sheet model system in the gas phase. Phys. Chem. Chem. Phys. 4, 1760 (2002)
  M. Gerhards, C. Unterberg
  
• Structure of the protected dipeptide Ac-Val-Phe-OMe in the gas phase: Towards a ß-sheet model system. J. Chem. Phys. 118 (18), 8296 (2003)
  C. Unterberg, A. Gerlach, T. Schrader, M. Gerhards
  
• High energy and narrow bandwidth mid IR nanosecond laser system. Opt. Commun. 241, 493 (2004)
  M. Gerhards
  
• Structure of the tripeptide model Ac-Val-Tyr(Me)-NHMe and its cluster with water investigated by IR/UV double resonance spectroscopy. Phys. Chem.Chem. Phys. 6, 4636 (2004)
  H. Fricke, A. Gerlach, C. Unterberg, P. Rzepecki, T. Schrader, M. Gerhards
  
• ß-sheet model systems in the gas phase: Structures and vibrations of Ac-Phe-NHMe and its dimer (Ac-Phe-NHMe)2. Phys. Chem. Chem. Phys. 6, 2682 (2004)
  M. Gerhards, C. Unterberg, A. Gerlach, A. Jansen
  
• Structures and rearrangement reactions of 4-aminophenol(H2O)1+ and 3-aminophenol(H2O)1+ clusters. J. Chem. Phys. 123, 074320 (2005)
  M. Gerhards, A. Jansen, C. Unterberg, A. Gerlach
  
• Structures of Ac-Trp-OMe and its dimer (Ac-Trp-OMe)2 in the gas phase: influence of a polar group in the side-chain. Mol. Phys. 103, 1521 (2005)
  A. Gerlach, C. Unterberg, H. Fricke, M. Gerhards
  
• Structure of a ß-sheet model system in the gas phase: Analysis ofthe fingerprint region up to 10 µm. Phys. Chem. Chem. Phys. 8, 1660 (2006)
  H. Fricke, A. Gerlach, M. Gerhards
  
• Investigation of secondary structure elements by IR/UV double resonance spectroscopy: Analysis of an isolated ß-sheet model system. J. Am. Chem. Soc. 130, 4692 (2008)
  H. Fricke, A. Funk, T. Schrader, M. Gerhards
  
• Interactions of small protected peptides with aminopyrazole derivatives: The efficiency of capping a ß-sheet model in the gas phase. Angewandte Chemie (2008)
  H. Fricke, A. Gerlach, C. Unterberg, M. Wehner, T. Schrader, M. Gerhards
  
• Investigations on the water cluster ofthe protected amino acid Ac-Phe-OMe by applying IR/ UV double resonance spectroscopy: microsolvation ofthe back bone. Chem. Phys. Chem.
  H. Fricke, A. Gerlach, C. Unterberg, M. Gerhards