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The observation of a picosecond transient in the relaxation of an iron porphyrin

✍ Scribed by P.A. Cornelius; A.W. Steele; D.A. Chernoff; R.M. Hochstrasser

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

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✦ Synopsis

Iron(III)tetraphenylporphyrin chloride, excited at 353 run, showed significant bleaching and new absorption at 445 and 55 550 nm, which reIaxed in 50 ps. Ground-state recovery occurs in 5100 fs; the bottleneck is populated with 3% efficiency. The photoproduct spectrum resembles a porphyrin ?TZ* triplet, and provides evidence for intersystem crossing in an iron heme.

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