Significant effects of branches and bromine substitution of near-infrared two-photon photosensitizers on the generation of singlet oxygen  

作　　者：LI HongRu YE XiaoJuan LIU Meng GAO Fang LIU XiaoJiao GUO QinYuan 

机构地区：[1]College Of Chemistry and Chemical Engineering,Chongqing University,Chongqing 400044,China

出　　处：《Chinese Science Bulletin》2012年第30期3850-3854,共5页

基　　金：supported by the National Natural Science Foundation of China (20776165,20702065,20872184);the Fundamental Research Funds for the Central Universities (CDJZR10220006);Chongqing Natural Science Foundations (CSTC2012jjB50007);Fang Gao appreciates warm encouragements from the Program of New Century Excellent Talents in University (NCET-10-0876)

摘　　要：This letter reports the influence of branches and bromine substitution of the photosensitizers on one-and two-photon absorption generation of singlet oxygen.Near-infrared femtosecond Ti:squassier laser was utilized to determine two-photon properties of the photosensitizers tuning wavelength from 700 to 880 nm at intervals of 20 nm.One-and two-photon optical and photophysical properties of the photosensitizers show significant dependence on the branches and substituted bromine atoms.This letter reports the influence of branches and bromine substitution of the photosensitizers on one- and two-photon absorption generation of singlet oxygen. Near-infrared femtosecond Ti：squassier laser was utilized to determine two-photon properties of the photosensitizers tuning wavelength from 700 to 880 nm at intervals of 20 nm. One- and two-photon optical and photophysical properties of the photosensitizers show significant dependence on the branches and substituted bromine atoms.

关 键 词：双光子吸收 单线态氧 光敏剂 溴原子 近红外 分支机构 光物理性质 光学 

分 类 号：O621.2[理学—有机化学]