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The research in our group involves studies of the spectroscopy and dynamics of molecules and weakly bound molecular complexes in ultracold molecular beams. One area of research pertains to the elucidation of intermolecular forces via high resolution rotational-vibrational spectroscopy of gas-phase molecular complexes . Weak intermolecular forces are pervasive and extremely important in chemistry. Our studies employ novel nonlinear Raman and picosecond-resolved spectroscopic techniques in an effort to characterize such forces through the determination of the geometries and vibrational structures of the complexes. A second area of interest relates to the study of weak intramolecular interactions such as those that determine the conformation of an alkyl chain moiety on a given species. Here, again, high resolution rotational and rovibrational spectroscopies, in conjunction with molecular beam techniques, are used to obtain information on the potential energy surfaces characterizing these intramolecular forces. Finally, we are interested in following the dynamics of isolated (i.e., gas-phase) molecules directly in the time domain. Intramolecular energy flow processes and photochemical reactions, and the dependence of such processes on various parameters, are being studied by means of picosecond spectroscopic techniques.
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Department
of Chemistry & Biochemistry
Current members of Felker Group Peyman Benharash, Soohyun Lee, Taiho Kim, Michael Gleason Former members of Felker Group Mark Schaeffer, Wousik Kim,
Joanne Romascan
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