独特的双卟啉分子中具有二酮吡咯并吡咯单元，其具有很强的双光子吸收增强效应。
Strong two-photon absorption enhancement in a unique bis-porphyrin bearing a diketopyrrolopyrrole unit.
机构信息
Institute of Organic Chemistry of the Polish Academy of Sciences, 01-224 Warsaw, Poland.
出版信息
Chem Commun (Camb). 2013 Sep 28;49(75):8368-70. doi: 10.1039/c3cc44728f.
PMID:23928900
Abstract
A π-extended bis-porphyrin bridged via a diketopyrrolopyrrole unit was prepared in 5 steps. This fully conjugated π-system displays strongly distorted linear absorption, while its two-photon absorption cross-section reaches 2500-3000 GM at 940 nm. LC-like behaviour, easy orientation and low viscosity are, according to XRD, POM and DSC measurements, due to formation of plastic rather than a liquid crystal.
摘要
通过二酮吡咯并吡咯单元桥连的π-扩展双卟啉啉在 5 步中制备。该完全共轭的π-体系显示出强烈扭曲的线性吸收，而其双光子吸收截面在 940nm 时达到 2500-3000GM。根据 XRD、POM 和 DSC 测量，类似于 LC 的行为、易于取向和低粘度是由于形成了塑料而不是液晶。
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