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细菌叶绿素二聚体作为溶剂极性依赖性近红外荧光团和活性氧物种光敏剂。

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

机构信息

Department of Chemistry and Biochemistry, University of Maryland, Baltimore County , 1000 Hilltop Circle, Baltimore, Maryland 21250, United States.

Biotechnology Career Academy, Applications and Research Laboratory, Howard County Public School System , Ellicott City, Maryland 21042, United States.

出版信息

Org Lett. 2016 Sep 16;18(18):4590-3. doi: 10.1021/acs.orglett.6b02237. Epub 2016 Sep 7.

Abstract

Symmetrical, near-infrared absorbing bacteriochlorin dyads exhibit gradual reduction of their fluorescence (intensity and lifetime) and reactive oxygen species photosensitization efficiency (ROS) with increasing solvent dielectric constant ε. For the directly linked dyad, significant reduction is observed even in solvents of moderate ε, 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.

摘要

具有对称结构、近红外吸收的细菌叶绿素二聚体,随着溶剂介电常数 ε 的增加,其荧光(强度和寿命)和活性氧物种光敏化效率(ROS)逐渐降低。对于直接连接的二聚体,即使在中等 ε 的溶剂中,也观察到显著的降低,而对于含有 1,4-亚苯基连接体的二聚体,降低更与溶剂 ε 的增加平行。细菌叶绿素二聚体是开发环境响应荧光团和 ROS 敏化剂的有前途的候选物。

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