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High-resolution spectroscopy of bacteriochlorin in n-alkane host crystals at 4.2 K

✍ Scribed by H.P.H. Thijssen; S. Völker

Publisher
Elsevier Science
Year
1981
Tongue
English
Weight
889 KB
Volume
82
Category
Article
ISSN
0009-2614

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✦ Synopsis

Site

-selection spectroscopy of free-base bacteriochlorin (7,8,17,18-tetrahydroporphin) in rz-hexane, ~z-octane and WCI~Cme at 4 2 I( are reported. The bibrational frequencies of the ground state, and first and second excited singlet states were determined from the fluorescence and euitation spectra. Low-frequency modes were observed, from which the angle of reorientation of the molecule upon exitation is estimated (< 1 5").

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