Bacteriochlorin Dyads as Solvent Polarity Dependent Near-Infrared Fluorophores and Reactive Oxygen Species Photosensitizers.

Bacteriochlorin Dyads as Solvent Polarity Dependent Near-Infrared Fluorophores and Reactive Oxygen Species Photosensitizers.
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DOI:
10.1021/acs.orglett.6b02237
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发表时间:
2016-09-16
期刊:
影响因子:
5.2
通讯作者:
Ptaszek M
Ptaszek M
中科院分区:
化学1区
文献类型:
--
作者:
Esemoto NN;Yu Z;Wiratan L;Satraitis A;Ptaszek M

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对称的近红外吸收菌绿素二联体随着溶剂介电常数ε的增加而表现出其荧光(强度和寿命)和活性氧(ROS)光敏化效率的逐渐降低。对于直接连接的二联体,即使在中等ε(CH 2Cl 2)的溶剂中也观察到显著降低,而对于含有1,4-亚苯基连接基的二联体,降低与溶剂ε的增加更平行。菌绿素二联体是开发环境响应荧光团和ROS敏化剂的有前途的候选者。
Symmetrical, near-infrared absorbing bacteriochlorin dyads exhibit gradual reduction of their fluorescence (intensity and lifetime) and reactive oxygen species (ROS) photosensitization efficiency with increasing solvent dielectric constant ε. For the directly-linked dyad significant reduction is observed even in solvents of moderate ε (CH2Cl2), while for the dyad containing a 1,4-phenylene linker, reduction is more parallel to an increase in solvent ε. Bacteriochlorin dyads are promising candidates for development of environmentally responsive fluorophores and ROS sensitizers.
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