Photoperoxidation of a Diamino Zinc Porphyrazine to the seco-Zinc Porphyrazine

Suicide or Murder?

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

We report on the efficient photooxidation of hexapropyl bis(dimethylamino) zinc porphyrazine. The process is shown to be autocatalytic. The triplet state of the seco-ZnPz sensitizes the formation of excited-state singlet oxygen with a quantum yield of 0.54 and subsequent cleavage of the pyrrole double bond occurs to give the product, seco-zinc porphyrazine. The photophysics of the two porphyrazines is examined using absorption, emission, and transient absorption spectroscopy. The efficiency of production of singlet oxygen is monitored using the phosphorescence emission signature at 1270 nm.

Original languageEnglish
Pages (from-to)4352-4358
Number of pages7
JournalJournal of Physical Chemistry A
Volume103
Issue number22
Publication statusPublished - Jun 3 1999

Fingerprint

Singlet Oxygen
Zinc
zinc
Phosphorescence
Pyrroles
Photooxidation
photooxidation
Quantum yield
oxygen
pyrroles
phosphorescence
Absorption spectroscopy
Excited states
atomic energy levels
cleavage
absorption spectroscopy
signatures
products
excitation

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this

Photoperoxidation of a Diamino Zinc Porphyrazine to the seco-Zinc Porphyrazine : Suicide or Murder? / Rumbles, Gary.

In: Journal of Physical Chemistry A, Vol. 103, No. 22, 03.06.1999, p. 4352-4358.

Research output: Contribution to journalArticle

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