Influence of an identified dimer vibration on the emission spectrum of 
[2,2]paracyclophane

Goldacker, Wilfried; Schweitzer, Dieter; Dinse, Klaus−Peter; Hausser, Karl H.

doi:10.1016/0301-0104(80)80010-3

Item

ITEM ACTIONSEXPORT

Add to Basket

Local TagsRelease HistoryDetailsSummary

Released

Journal Article

Influence of an identified dimer vibration on the emission spectrum of [2,2]paracyclophane

MPS-Authors

/persons/resource/persons93125

Goldacker, Wilfried
Department of Molecular Physics, Max Planck Institute for Medical Research, Max Planck Society;

/persons/resource/persons95265

Schweitzer, Dieter
Department of Molecular Physics, Max Planck Institute for Medical Research, Max Planck Society;

/persons/resource/persons217876

Dinse, Klaus−Peter
Max Planck Institute for Medical Research, Max Planck Society;

/persons/resource/persons93336

Hausser, Karl H.
Department of Molecular Physics, Max Planck Institute for Medical Research, Max Planck Society;

External Resource

https://www.sciencedirect.com/science/article/pii/0301010480800103/pdf?md5=34dbda1cc2e70f2cd2f42218c3dde283&pid=1-s2.0-0301010480800103-main.pdf
(Any fulltext)

https://doi.org/10.1016/0301-0104(80)80010-3
(Any fulltext)

Fulltext (restricted access)

There are currently no full texts shared for your IP range.

Fulltext (public)

There are no public fulltexts stored in PuRe

Supplementary Material (public)

There is no public supplementary material available

Citation

Goldacker, W., Schweitzer, D., Dinse, K., & Hausser, K. H. (1980). Influence of an identified dimer vibration on the emission spectrum of [2,2]paracyclophane. Chemical Physics, 48(1), 105-111. doi:10.1016/0301-0104(80)80010-3.

Cite as: https://hdl.handle.net/21.11116/0000-0004-BEA4-D

Abstract

The emission spectrum of polycrystalline [2,2]paracylophane shows a resolved vibronic structure with a 241 cm−1 progression at He temperatures. The dependence of the energy of this mode upon selective deuteration in combination with results from FIR and Raman spectra could be used to identify the mode as a torsional dimer vibration. The emission spectra could be simulated assuming a linear coupling of the torsional mode to the electronic transitions with coupling strengths of S = 10 (fluorescence) and S = 13 (phosphorescence). This corresponds to an equilibrium displacement of the benzene rings under electronic excitation by a torsional angle of 10.6° (S1) and 12.1° (T1), in addition to the small torsion in the ground state S0 by about 3°.