The 3000 Å Absorption Spectrum of Phenanthrene in Mixed Crystals
作者:
Gad Fischer,
期刊:
Molecular Crystals
(Taylor Available online 1969)
卷期:
Volume 6,
issue 1
页码: 105-123
ISSN:0369-1152
年代: 1969
DOI:10.1080/15421406908082954
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
The polarized second singlet-singlet absorption spectrum of phenanthrene at 3000 Å has been observed in mixed crystals of durene and hexamethlbenzene. In durene at 4 °K, bandwidths of 10cm−1are observed and lattice vilbrations identified. Electron spin resonance measurements of the phenanthrene triplet in durene have shown that the orientation of the phenanthrene is changed from that of the durene. Nevertheless the observed polarization ratios are close to those calculated for a long-axis polarized mixed crystal transition. All the results are in agreement with the assignment of1B2for the second singlet state.
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