✦ LIBER ✦

CIDNP and intersystem crossing in biradicals

✍ Scribed by Charles Doubleday Jr.

Publisher: Elsevier Science
Year: 1979
Tongue: English
Weight: 374 KB
Volume: 64
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(79)87277-2

No coin nor oath required. For personal study only.

✦ Synopsis

Magnetic fieid dependence curves are presented for the t3C CIDNP signals resulting from photol>sis of ?-phenqlc~clo-&-ones

in cyclohcxane. One of the three biradicakleriwd products, the trapped ketene, reverses its polarization at high field. This is interpreted in terms of a competition between nuclear spin-dependent and nuclear spin-indesendent intersystem crossing in the biradical, and as e6dence for a product selectivity based on the mechanism ofintersystem crossing_

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