在外围位置(配合物3a和3b)和在非外围位置(配合物4a和4b)具有7,8-(首次报道了12-冠-4)-3-(4-氧苯基)香豆素基团。这些新化合物已通过元素分析FT-IR表征11 H NMR,电子光谱和质谱。描述了光降解,单线态氧和荧光量子产率以及这些化合物在二甲亚砜(DMSO)中的荧光寿命的一般趋势。酞菁配合物的光物理和光化学特性对于光动力疗法(PDT)应用非常有用。单线态氧量子产率(Φ Δ范围从0.11至0.80)的指示络合物作为光敏剂的PDT中的应用的潜力。
Highly singlet oxygen generative water-soluble coumarin substituted zinc(II) phthalocyanine photosensitizers for photodynamic therapy
作者:Meryem Çamur、Mahmut Durmuş、Mustafa Bulut
DOI:10.1016/j.poly.2012.04.034
日期:2012.6
New tetra-non-peripherally and peripherally ethyl butyrate or butanoic acid and their sodium salts bearing coumarin substituted zinc(II) phthalocyanine complexes have been synthesized and characterized for the first time. Butanoic acid bearing coumarin substituted zinc(II) phthalocyanine complexes and their sodium salts show excellent solubility in aqueous solution. Photophysical and photochemical properties of these phthalocyanines were investigated. General trends are described for photodegradation, fluorescence and singlet oxygen quantum yields as well as fluorescence lifetimes of these compounds. The value of singlet oxygen quantum yields ranged from 0.65 to 0.93 in phosphate-buffered saline + Triton X-100 solution indicating that they can produce singlet oxygen in high efficiency. This study also presented the synthesized water soluble zinc(II) phthalocyanines strongly bind to bovine serum albumin. (c) 2012 Elsevier Ltd. All rights reserved.