Lehnig, Rudolf and Sebree, Joshua A. and Slenczka, Alkwin (2007) Structure and dynamics of Phthalocyanine-Argon(n) (n=1-4) complexes studied in helium Nanodroplets. JOURNAL OF PHYSICAL CHEMISTRY A, 111 (31). pp. 7576-7584. ISSN 1089-5639,
Full text not available from this repository.Abstract
Van der Waals clusters of phthalocyanine with 1-4 argon atoms formed inside superfluid helium nanodroplets have been investigated by recording fluorescence excitation spectra as well as emission spectra. The excitation spectra feature a multitude of sharp lines when recorded in superfluid helium droplets in contrast to the respective spectra measured in a seeded supersonic beam (Cho et al. Chem. Phys. Lett. 2000, 326, 65). The pickup technique used for doping of the phthalocyanine and the argon into the droplets allows for nondestructive analysis of the cluster sizes. Alternation of the pickup sequence gives information on the binding site of the argon atoms. The investigation of dispersed emission spectra in helium droplets can be used as a special tool for the identification of 0(0)(0) transitions within the variety of sharp lines seen in the excitation spectra. Thus, different isomers of the clusters can be distinguished. Moreover, the emission spectra reveal information on dynamic processes such as vibrational predissociation of the van der Waals complexes and interconversion among isomeric species. The binding energy of the phthalocyanine-argon(1) complex in helium droplets was estimated to be at most 113 cm(-1).
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | DER-WAALS COMPLEXES; SUPERFLUID-HELIUM; LIQUID-HELIUM; AROMATIC-MOLECULES; DROPLETS; SPECTROSCOPY; CLUSTERS; VAN; SOLVATION; ATOMS; |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Physikalische und Theoretische Chemie > Chair of Chemistry III - Physical Chemistry (Molecular Spectroscopy and Photochemistry) > Prof. Dr. Alkwin Slenczka |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 01 Dec 2020 14:25 |
| Last Modified: | 01 Dec 2020 14:25 |
| URI: | https://pred.uni-regensburg.de/id/eprint/32395 |
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