Table of Contents
Laser Chemistry
Volume 19, Issue 1-4, Pages 349-351

The Phosphorescence Spectra of Triphenylene and Truxene: A Combined Experimental and Theoretical Investigation of the Vibronic Structure

1Department of Chemistry, University of Copenhagen, Symbion, Fruebjergvey 3, Copenhagen DK-2100, Denmark
2Dipartimento di Chimica “G. Ciamician”, Università di Bologna, Bologna 40126, Italy
3Condensed Matter Physics and Chemistry Department, FYS-313, Risø National Laboratory, Roskilde DK-4000, Denmark

Received 7 April 1997

Copyright © 1999 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The phosphorescence spectra of triphenylene and truxene, recorded in glassy solvents at 77 K, are presented. Their vibronic structure is interpreted on the basis of intensities computed with the help of quantum-chemical calculations. The agreement between observed and simulated intensities is very satisfactory and contributes to improve and complete the assignment of ground state frequencies of the two disk-like molecules.