Photophysical behaviour of asymmetrically substituted metal free, Mg and Zn phthalocyanines in the presence of folic acid

被引：28

作者：

Nombona, Nolwazi ^{[1
]}

Chidawanyika, Wadzanai ^{[1
]}

Nyokong, Tebello ^{[1
]}

机构：

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

来源：

POLYHEDRON | 2011年 / 30卷 / 04期

基金：

新加坡国家研究基金会;

关键词：

Folic acid; Fluorinated; Magnesium phthalocyanine; Triplet yield; Fluorescence; PHOTOSENSITIZER; DELIVERY;

D O I：

10.1016/j.poly.2010.11.033

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

This work reports on the synthesis, characterisation and photophysical properties of new asymmetric metal free, magnesium and zinc phthalocyanines containing a mono carboxylic acid group for possible linking to biological molecules via an amide bond. Successful synthesis of the phthalocyanines was achieved through the statistical condensation method. The phthalocyanines were mixed with folic acid and their photophysical properties were examined. The triplet quantum yield values for all the complexes in DMSO were between 0.49 and 0.74 and in the presence of folic acid they were between 0.37 and 0.63. The lifetimes were generally good ranging from 70 to 290 mu s in the absence or presence of folic acid. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：654 / 659

页数：6

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