Arbeitsgruppe Elektronenstoß-Spektroskopie

am Lehrstuhl II (Prof. G. Hohlneicher)

Leitung: PD Dr. Petra Swiderek

Forschungsgebiete:

Singulett-Triplett-Übergänge in organischen Molekülen und Einfluß intermolekularer Wechselwirkungen auf deren energetische Lage.
Mechanismen der Anregung von Molekülen in kondensierter Phase durch Elektronenstoß.
Elektroneninduzierte Reaktionen in dünnen molekularen Schichten.
Effekte der Aggregation in Schwingungsspektren.

Methoden:

Niederenergetische Elektronen-Energieverlust-Spektroskopie. 
UV/VIS-Spektroskopie.
Infrarot-Spektroskopie.
Vakuumdeposition dünner organischer Schichten.
Adsorption an Oberflächen aus Lösung.
Quantenchemische Verfahren.

Mitarbeiter:

Britta Göötz
Helge Haberkern
 
  Veröffentlichungen:
  1. Electron energy loss spectroscopy of solid naphthalene and acenaphthene: Search for the low-lying triplet states;

    2. P. Swiderek, M. Michaud, G. Hohlneicher, L. Sanche
    Chem. Phys. Lett. 175, 667 (1990).
     
  2. Electron energy loss spectroscopy of solid phenanthrene and biphenylene: Search for the low lying triplet states;

    3. P. Swiderek, M. Michaud, G. Hohlneicher, L. Sanche
    Chem. Phys. Lett. l78, 289 (1991).
     
  3. Electronic states of porphycenes;

    4. J. Waluk, M. Müller, P. Swiderek, M. Köcher, E. Vogel, G. Hohlneicher, J. Michl
    J. Am. Chem.Soc. 113, 5511 (1991).
     
  4. Electron energy loss spectroscopy of solid fluorene and biphenyl: Search for the low-lying triplet states;

    5. P. Swiderek, M. Michaud, G. Hohlneicher, L. Sanche
    Chem. Phys. Lett. 187, 583 (1991).
     
  5. Comment on the low lying singlet states of acenaphthene;

    6. P. Swiderek, G. Hohlneicher
    Ber. Bunsenges. Phys. Chem. 95, 1683 (1991).
     
  6. Calculation of triplet states by the CNDO/S method;

    7. P. Swiderek, G. Hohlneicher
    J. Mol. Struct. (Theochem) 262, 187 (1992).
     
  7. Theoretical prediction of the vibrational spectrum of naphthalene in the first excited singlet state;

    8. P. Swiderek, G. Hohlneicher, S.A. Maluendes, M. Dupuis
    J. Chem. Phys. 98, 974 (1993).
     
  8. Electron-energy-loss spectroscopy of condensed butadiene and cyclopentadiene: Vibrationally resolved excitation of the low-lying triplet states;

    9. P. Swiderek, M. Michaud, L. Sanche
    J. Chem. Phys. 98, 8397 (1993).
     
  9. Electron-energy-loss spectroscopy of the low-lying triplet states of styrene;

    10. P. Swiderek, M.-J. Fraser, M. Michaud, L. Sanche
    J. Chem. Phys. 100, 70 (1994).
     
  10. Electron-energy-loss spectroscopy of 6,6'-dimethylfulvene: First detection of the triplet state;

    11. P. Swiderek, M. Michaud, L. Sanche
    J. Chem. Phys 103, 8424 (1995).
     
  11. Vibronic structure in the low-lying singlet-triplet transitions of benzene and toluene;

    12. P. Swiderek, M. Michaud, L. Sanche
    J. Chem. Phys. 105, 6724 (1996).
     
  12. Condensed phase electron-energy-loss spectroscopy of the low-lying triplet states of acetylene;

    13. P. Swiderek, M. Michaud, L. Sanche
    J. Chem. Phys. 106, 9403 (1997).
     
  13. Comment on "Adsorption and electronic states of benzene on ordered MgO and Al2O3 thin films";

    14. P. Swiderek
    J. Phys. Chem. B 101, 5463 (1997).
     
  14. Electron-energy-loss spectroscopy of spin-forbidden transitions with vibronic resolution: The lowest triplet state of fluorobenzenes;

    15. P. Swiderek, S. Schürfeld, H. Winterling
    Ber. Bunsenges. Phys. Chem. 101, 1517 (1997).
     
  15. Contribution of low-energy electron-energy-loss spectroscopy to g-radiolysis: Evidence for the CO formation in irradiated methanol and acetone;

    16. J.P. Jay-Gerin, M.-J. Fraser, P. Swiderek, M. Michaud, L. Sanche, C.Ferradini
    Radiation Physics and Chemistry 50, 263 (1997).
     
  16. Energy-dependent vibrational excitation by electron impact in thin films of amorphous benzene;

    17. P. Swiderek, H. Winterling, H. Ibach
    Chem. Phys. Lett. 280, 556 (1997).
     
  17. Spin-forbidden transitions in amorphous and crystalline thin films of benzene;

    18. P. Swiderek, H. Winterling
    Chem. Phys. 229, 295 (1998).
     
  18. Electron-energy-loss spectroscopy of solid phenylacetylene;

    19. P. Swiderek, B. Göötz, H. Winterling
    Chem. Phys. Lett. 285, 246 (1998).
     
  19. The low-lying singlet-triplet transitions of styrene and phenylacetylene: Analysis of the vibronic structure;

    20. P. Swiderek, B. Göötz
    Ber. Bunsenges. Phys. Chem. 102, 882 (1998).
     
  20. Excited states of acetylene: A CASPT2 study;

    21. K. Malsch, R. Rebentisch, P. Swiderek, G. Hohlneicher
    Theoret. Chem. Acc. 100, 171 (1998).
     
  21. Solid phase electron-energy-loss spectroscopy of allowed transitions in benzene;

    22. O.Kröhl, P.Swiderek
    J. Mol. Struct. 480-481, 237 (1999).
     
  22. Vibrational excitation by electron impact in thin solid films of cyclopropane;

    23. B.Göötz, H.Winterling, P.Swiderek
    J.Electron Spectrosc. 105, 1 (1999).
     
  23. The electronic states of nitrobenzenes: Electron energy loss spectroscopy and CASPT2 calculations;

    24. O.Kröhl, K.Malsch, P.Swiderek
    Phys.Chem.Chem.Phys. 2, 947 (2000).
     
  24. High-resolution electron energy loss spectroscopy of molecular multilayer film growth and properties;

    25. B.Göötz, O.Kröhl, P.Swiderek
    J.Electron Spectrosc., im Druck.
Birgitt Boersch-Pulm

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Last modified: Thu Mar 11 17:06:18 MET 1999