蒽基修饰的双(特吡啶)锌(II)络合物，用于改善二氧化碳光还原作用

IF 2.4 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Polyhedron Pub Date : 2024-11-05 DOI:10.1016/j.poly.2024.117286

Lingli Shao , Youting Fang , Yinjun Diao , Yilin Xue , Shuping Cai , Hui Mao , Duobin Chao

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引用次数: 0

摘要

过渡金属配合物是一类重要的二氧化碳光氧化分子催化剂。在此，我们报告了一种用蒽基修饰的双(特吡啶)Zn(II)配合物。这种 Zn(II) 复合物在 CO2 光还原方面具有很高的效率，其 CO 生成吨数可达 585，选择性高达 96.2%，是未进行任何取代基修饰的母体复合物的 10 倍。研究进一步表明，TON 值的如此显著提高是由于修饰后的 Zn(II) 复合物具有更大的共轭体系，从而稳定了拟议的配体基自由基阴离子。这些结果为通过配体修饰提高分子催化剂的催化性能提供了一种有效的策略。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

An anthryl-modified bis(terpyridine)zinc(II) complex for improved CO2 photoreduction

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An anthryl-modified bis(terpyridine)zinc(II) complex for improved CO2 photoreduction

Transition metal complexes are an important class of molecular catalysts for CO₂ photoreduction. Herein, we report a bis(terpyridine)Zn(II) complexes modified with anthryl groups. This Zn(II) complex is highly efficient for CO₂ photoreduction with a TON of CO up to 585 and 96.2% selectivity, which is 10 times higher than that of its parent complex without any substituent modification. It is further revealed that such a significant enhancement of TON is due to the larger conjugated system of the modified Zn(II) complex, which stabilizes the proposed ligand-based radical anion. These results provide an efficient strategy to enhance the catalytic performance of a molecular catalyst by the ligand modification.

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来源期刊

Polyhedron 化学-晶体学

CiteScore

4.90

自引率

7.70%

发文量

515

审稿时长

2 months

期刊介绍： Polyhedron publishes original, fundamental, experimental and theoretical work of the highest quality in all the major areas of inorganic chemistry. This includes synthetic chemistry, coordination chemistry, organometallic chemistry, bioinorganic chemistry, and solid-state and materials chemistry. Papers should be significant pieces of work, and all new compounds must be appropriately characterized. The inclusion of single-crystal X-ray structural data is strongly encouraged, but papers reporting only the X-ray structure determination of a single compound will usually not be considered. Papers on solid-state or materials chemistry will be expected to have a significant molecular chemistry component (such as the synthesis and characterization of the molecular precursors and/or a systematic study of the use of different precursors or reaction conditions) or demonstrate a cutting-edge application (for example inorganic materials for energy applications). Papers dealing only with stability constants are not considered.