UV—vis absorption studies of singlet to triplet intersystem crossing rates of aromatic ketones: effects of molecular geometry

Content Provider	Semantic Scholar
Author	Mcgarry, P. F. Doubleday, Charles Wu, Chung-Hsi Staab, Heinz A. Turro, Nicholas J.
Copyright Year	1994
Abstract	Abstract The effect of the molecular geometry of diaryl and arylalky ketones on the rate of intersystem crossing (ISC) was investigated by employing picosecond pump—probe studies of the growth of triplet—triplet absorptions at 532 and 355 nm. Vibrational relaxation within the triplet manifold was found to interfere with measurement of the ISC rates for certain benzophenone derivatives. The observed rapid decay of absorption at 355 nm is attributed to relaxation of vibrationally excited triplets. The trends observed are consistent with direct singlet-to-triplet ISC from S 2 to T 1 .
Starting Page	109
Ending Page	117
Page Count	9
File Format	PDF HTM / HTML
DOI	10.1016/1010-6030(94)80033-2
Volume Number	77
Alternate Webpage(s)	http://turroserver.chem.columbia.edu/PDF_db/publications_501_550/548.pdf
Alternate Webpage(s)	https://doi.org/10.1016/1010-6030%2894%2980033-2
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article