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Spin delocalization in the lowest triplet state of benzophenone

✍ Scribed by John A. Mucha; David W. Pratt

Publisher: Elsevier Science
Year: 1976
Tongue: English
Weight: 286 KB
Volume: 37
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(76)80156-x

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✦ Synopsis

Ring atom hypcrfine structure hus been observed in the optically-detected ms,Pnetic resonance (ODMH) spectra of the lows: triplet states of 4,4'-difluoro-and 4,4'dibromobenzop~lenone in a single crystal host at liquid helium temperatures. An an~~lysis of this structurt! 2nd its angular dependence yields a Iowctr iimit of 0.10 for the normalized x-orbital spin density in co&i of the parfl fin: positions. These results, coperher with the demonstrated sensitivity of the zero-field splitting parameters to halosen substit~ents in rhe 4 and 4' positions, su,, "vest that it significant amount of spin density resides on the phtnyi rings in the (n,~*) state of benzophenone.

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