大环芳烃菲咯啉的设计、合成及其铜光敏剂光解水制氢性能 |
Macrocyclic Arenes Derived Phenanthrolines: Design, Synthesis and Application at Heteroleptic Copper Complexes for Photocatalytic Hydrogen Evolution from Water |
|
摘要: 设计、合成了一类4,7位为大环芳烃的菲咯啉二齿氮配体,可与铜(Ⅰ)和Xantphos原位配位,获得一系列新型氮磷杂配铜光敏剂CuPS 1~CuPS 6,在均相光解水制氢体系中研究其光敏活性及构效关系。实验结果表明,在菲咯啉4,7位引入芳基有利于提高其光敏活性,1-萘基取代的CuPS 3有最好的制氢活性,光解水制氢转化数(TON)达957。通过理论计算对比分析,1-萘基取代基与菲咯啉母核具有较大的二面角,对铜配合物的激发态有较好的保护作用,因此CuPS 3表现出较高的荧光量子产率(0.036)和较长的激发态寿命(1.36 μs)。 |
关键词: 大环芳烃 菲咯啉 铜光敏剂 光解水 制氢 |
基金项目: |
Abstract: A series of macrocyclic arenes derived phenanthrolines have been designed and synthesized, which could form a series of novel heteroleptic copper photosensitizers CuPS 1~CuPS 6 with Xantphos as phosphorus ligands. The photosensitive activity of CuPS 1~CuPS 6 was studied in homogeneous photocatalytic water reduction system for hydrogen production. The research results showed that 1-naphthyl was the preferred substituent and the turnover number (TON) of CuPS 3 for hydrogen production was up to 957. Through theoretical calculation and comparative analysis, a larger dihedral angle of the 1-naphthyl substituent and the phenanthroline nucleus has a better steric effect to protect the excited state of the copper complex. Thus, CuPS 3 displayed a higher fluorescence quantum yield (0.036) and a longer excited state lifetime (1.36 μs). |
Keywords: macrocyclic arene phenanthroline copper photosensitizer photocatalytic water splitting hydrogen evolution |
投稿时间:2021-02-09 修订日期:2021-07-14 |
摘要点击次数: 1202 |
全文下载次数: 976 |
许萌,俞晓聪,刘雪粉,陈浩,范金轩,王天琦,吴庆安,罗书平.大环芳烃菲咯啉的设计、合成及其铜光敏剂光解水制氢性能[J].无机化学学报,2021,37(9):1597-1605. |
查看全文 查看/发表评论 下载PDF阅读器 |
Support information: |
|
|
|