The photochemistry and photophysics of a series of non-peripherally substituted zinc phthalocyanines

van Leeuwen, Magda, Beeby, Andrew and Ashworth, Stephen H. ORCID: https://orcid.org/0000-0003-4213-3541 (2010) The photochemistry and photophysics of a series of non-peripherally substituted zinc phthalocyanines. Photochemical & Photobiological Sciences, 9 (3). 370–375. ISSN 1474-9092

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Abstract

Photophysical and photochemical measurements have been made on a series of novel non-peripherally octa(alkyl-substituted) zinc phthalocyanines. Fluorescence quantum yields and lifetimes, triplet quantum yields and lifetimes and singlet delta oxygen quantum yields were measured in 1% v/v pyridine in toluene. The effects of alkyl substituents and increasing chain length relative to the unsubstituted parent molecule, zinc phthalocyanine (ZnPc), are discussed. ZnPc with alkyl substituents of chain length 5–15 carbons exhibited similar absorption and emission maxima (704 nm and 718 nm respectively) with the molar absorptivity of the Q-band [similar]105 M-1 cm-1. The series of compounds also exhibited triplet quantum yields of 0.78–0.84 and singlet oxygen quantum yields of 0.67–0.71.

Item Type:	Article
Faculty \ School:	Faculty of Science > School of Chemistry
UEA Research Groups:	Faculty of Science > Research Groups > Centre for Ocean and Atmospheric Sciences Faculty of Science > Research Groups > Physical and Analytical Chemistry (former - to 2017)
Depositing User:	Rachel Smith
Date Deposited:	10 Feb 2011 16:34
Last Modified:	11 Jan 2023 17:32
URI:	https://ueaeprints.uea.ac.uk/id/eprint/21116
DOI:	10.1039/B9PP00107G

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