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Intersystem crossing of the carbonyl compounds of anthracene. (II). Derivatives of 9-benzoylanthracene

โœ Scribed by T. Matsumoto; M. Sato; S. Hirayama


Publisher
Elsevier Science
Year
1973
Tongue
English
Weight
334 KB
Volume
18
Category
Article
ISSN
0009-2614

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โœฆ Synopsis


Among several derivatives of 9-b%zoylanthracene investigated, only 9-bcnzoyl lC-cyanoanthraccnc having the largest Ao-_O value showed a large temperature effect on the fluorescence intensity. This fact confirmed our previous supposition that in 9-czrbonyl dcrivativcs of anthracene there is efficient intersystem crossing S,,* -Tn,+.


๐Ÿ“œ SIMILAR VOLUMES


Intersystem crossing in 9-carbonyl deriv
โœ T. Matsumoto; M. Sato; S. Hirayama ๐Ÿ“‚ Article ๐Ÿ“… 1972 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 355 KB

An unusual temperature ,effect on ihe intensity of fluorescence of 9-carbonyl derivhtives of anthracene is observed: ihis is interpreted in terms of an intersystem crossing process from the lowest excited singlet state, !+r to the higher excited triplet state T,&\_ ,. Investigations of temperature

Resonances in mediated intersystem cross
โœ Aviv Amirav; Joshua Jortner ๐Ÿ“‚ Article ๐Ÿ“… 1986 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 646 KB

The major jR#g~a~ eIemnic ~l~a~~~ mrxkaaism from the first el~t~Rj~ly excited St singleE manifold of anthracene and its isotopic and chemical derivatives involves intersystem crossing (ISC) [ 1-15 1, which proceeds via two parallel mechanisms: (1) DirectSi-+ ISC [Sj to thestatistical first triplet

Pressure dependence of intersystem cross
โœ P.C. Johnson; H.W. Offen ๐Ÿ“‚ Article ๐Ÿ“… 1970 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 288 KB

Fluorescence lifetimes Tf of anthracene, 9.10-diphenylanthracene and S-methylanthracene have heen measured as a function of pressure to 30 kbar at 77oK. An anomalous Whree-fold increase in rfr OEIserved for anthracene at high pressures. is attributed to prohibition of SI--WT2 intersystem crossing as

Magnetic resonance studies of the deuter
โœ R.H. Clarke ๐Ÿ“‚ Article ๐Ÿ“… 1971 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 387 KB

The intersystem crossing decay constants from the 3Bzu state into the ground state of anthrauxeil~o in a phenzzine crystal have been determined by magnetic resanmae techniques nt lSยฐK both nt hisI\_ magnetic field and, by a parameterization procedure, at zzo magnetic fie!d, A comparison of the anthr