题目：

Molecular Regioisomerism of Benzobisthiazole-Based Conjugated Polymers Promotes Photocatalytic Hydrogen Production

作者：

Yongpan Hu^1,2, Xue Ding^1,2, Jie Feng^1,2, Yuchen Yan^1,2, Chaochen Shao^1,2, Xiaohan Yu^1,2, Jingfan Shao^1,2, Yujin Ji^1,2, Youyong Li^1,2,3, Wei Huang^1,2*, and Yanguang Li^1,2,3*

摘要：

Polymer semiconductors hold great promise for photocatalytic hydrogen production due to their diverse structures and functions. Nevertheless, their photocatalytic performances are usually compromised by rapid charge recombination. Herein, a molecular regioisomerism strategy of benzobisthiazole (BT)-based conjugated polymers is proposed for manipulating their optoelectronic properties through varying the conjugation directions of BT units. Despite subtle structural differences, the 4,8-subsituted sample LCP-BT-48 exhibits an remarkably improved charge separation capability and a sixfold increase in the photocatalytic hydrogen production rate in comparison with those of the 2,6-subsituted counterpart. Theoretical analysis demonstrates that the superior optoelectronic property of LCP-BT-48 is attributed to its sp2 carbon-conjugated skeletons and enhanced local polarization electric field between BT and neighboring ?-units. This work provides a new paradigm for regulating charge-transfer dynamics in conjugated polymers for efficient photocatalysis.

影响因子：

18.5

分区情况：

一区