Photophysical and photochemical properties and TD-DFT calculations of novel zinc and platinum phthalocyanines

被引：15

作者：

Yilmaz, Yusuf ^{[1
]}

Mack, John ^{[2
]}

Sener, M. Kasim ^{[3
]}

Sonmez, Mehmet ^{[1
]}

Nyokong, Tebello ^{[2
]}

机构：

[1] Gaziantep Univ, Dept Chem, TR-27310 Gaziantep, Turkey

[2] Rhodes Univ, Dept Chem, ZA-6140 Grahamstown, South Africa

[3] Yildiz Tech Univ, Dept Chem, TR-34210 Istanbul, Turkey

来源：

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 2014年 / 277卷

关键词：

Phthalocyanine; Singlet oxygen quantum yields; TD-DFT calculations; FEMTOSECOND TRANSIENT ABSORPTION; NONLINEAR-OPTICAL PROPERTIES; MAGNESIUM PHTHALOCYANINE; METAL-COMPLEXES; SINGLET OXYGEN; DMSO SOLUTIONS; WATER; DERIVATIVES; DERIVATIZATION; SUBSTITUENTS;

D O I：

10.1016/j.jphotochem.2013.12.010

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The synthesis and characterization, and spectral, photophysical and photochemical properties of dimethyl 2-(3-methylbut-2-enyl)malonate substituted zinc and platinum phthalocyanines are reported. The phthalocyanines were characterized by electronic absorption, infrared, and nuclear magnetic resonance spectroscopy, mass spectrometry and elemental analysis. Trends observed in the singlet oxygen, photodegradation, fluorescence and triplet state quantum yields and the fluorescence and triplet state lifetimes are described. DFT and TD-DFT calculations were carried out so that the electronic structure and optical spectroscopy of the Pt(II) complex could be compared to that of the Zn(II) complex. As would normally be anticipated, the bulky peripheral substituents were found to enhance the solubility of the complexes in organic solvents. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：102 / 110

页数：9

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