2,7,12,17-Tetra(2,5-thienylene)-substituted porphycenes
2,7,12,17-Tetra(2,5-thienylene)-substituted porphycenes
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2,7,12,17-四(2,5-噻吩基)-取代的卟吩
DOI：
10.1142/s1088424619500743
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发表时间：
2019
影响因子：
1.5
通讯作者：
Yamada Hiroko
中科院分区：
文献类型：
--
作者：
Kuzuhara Daiki;Nakaoka Haruka;Matsuo Kyohei;Aratani Naoki;Yamada Hiroko
本文报道了通过McMurry偶联法合成噻吩和二噻吩取代的卟啉（ThPcandDThPc）的2，7，12，17-位衍生物。ThP的晶体结构表明，卟啉平面高度平坦，与噻吩的二面角较小，分别为21和18。ThP和DThPc的吸收峰均发生红移和展宽，这是由于共轭作用通过卟啉延伸到取代噻吩上。我们发现噻吩单元的引入有效地降低了卟啉分子的HOMO-LUMO差异。
We report syntheses of thiophene and dithiophene-substituted porphycenes (ThPcandDThPc) at 2,7,12,17-positions by McMurry coupling. The crystal structure ofThPcrevealed that the porphycene plane shows a highly planar structure, and the dihedral angles between the porphycene core and thiophene are relatively small at 21and 18.ThPcandDThPcexhibit red-shifted and broadened absorption because of the extension ofconjugations through porphycene to the substituted thiophenes. We found that introduction of thiophene units onto porphycene results in decreasing the HOMO–LUMO differences effectively.