Comparative Photophysics of Platinum(II) and Platinum(IV) Porphyrins

Dongho Kim, Dewey Holten, Martin Gouterman, Johann W. Buchler

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

Absorption changes and kinetic behavior produced by excitation of PtII(TPP) and PtIV(TTP)Cl2 with 35-ps flashes at 355 and 532 nm are reported. (TPP is tetraphenylporphyrin; TTP is tetratolylporphyrin.) The transient difference spectrum obtained for the Pt(II) compound persists for >10 ns and is assigned to the lowestring triplet, 3T (π, π*). Similar results were found for PdII(TPP). On the other hand, the absorption changes obtained for the PtIV compound decay rapidly, with a time constant of 45 ± 10 ps. This transient behavior is ascribed to a low-lying ring-to-metal [a2u(π)dx2-y2] charge-transfer state predicted by theory.

Original languageEnglish
Pages (from-to)4015-4017
Number of pages3
JournalJournal of the American Chemical Society
Volume106
Issue number14
DOIs
Publication statusPublished - 1984 Jan 1

Fingerprint

Porphyrins
Platinum
Charge transfer
Metals
Kinetics
thymidine 5'-triphosphate
tetraphenylporphyrin

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

Cite this

Kim, Dongho ; Holten, Dewey ; Gouterman, Martin ; Buchler, Johann W. / Comparative Photophysics of Platinum(II) and Platinum(IV) Porphyrins. In: Journal of the American Chemical Society. 1984 ; Vol. 106, No. 14. pp. 4015-4017.
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Comparative Photophysics of Platinum(II) and Platinum(IV) Porphyrins. / Kim, Dongho; Holten, Dewey; Gouterman, Martin; Buchler, Johann W.

In: Journal of the American Chemical Society, Vol. 106, No. 14, 01.01.1984, p. 4015-4017.

Research output: Contribution to journalArticle

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T1 - Comparative Photophysics of Platinum(II) and Platinum(IV) Porphyrins

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