SINGLET TRIPLET SPECTRA OF THE TETRAPHENYL DERIVATIVES OF GROUP IV ELEMENTS.
Loading...
Date
1967
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Ohio State University
Abstract
The polarized absorption spectra of single crystals of tetraphenyl lead, tin, germanium, and silicon have been examined at $4.2^{\circ}K$. The $0-0$ bands were split into several components separated by about $3 cm^{-1}$, and this splitting has been assigned as arising from intra-molecular exchange splitting. The energy of the $0-0$ band was found to increase as the size of the central atom increased. High field Zeeman experiments indicate that two spin-orbit routes predominate. Preliminary examination of the phosphorescence indicates that the emission may originate from two of the intramolecular exchange states.
Description
Author Institution: Laboratory for Research on Molecular Structure, University of Pennsylvania