H2O 作为氢化酶模拟物配体的有用性质。

The useful properties of H2O as a ligand of a hydrogenase mimic.

机构信息

Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan.

出版信息

Dalton Trans. 2010 Mar 7;39(9):2218-25. doi: 10.1039/b921273f. Epub 2010 Jan 12.

DOI:10.1039/b921273f

PMID:20162194

Abstract

This paper investigates the required properties of Ru-coordinated ligands of a Ni-Ru based hydrogenase mimic. A series of ligands, including MeCN, pyridine, H(2)O and OH(-) were coordinated to Ru, with H(2)O being the only ligand to promote H(2)-activation. In addition, a tethered pyridyl moiety was synthesised and found to completely inhibit H(2)-activation. We conclude, therefore, that H(2)O is the ideal ligand for this mimic as a result of both its mild basicity and the availability of two lone pairs for simultaneous binding to Ru and H(2).

摘要

本文研究了 Ni-Ru 基氢化酶模拟物所需的 Ru 配位配体的性质。一系列配体，包括 MeCN、吡啶、H2O 和 OH(-)与 Ru 配位，其中 H2O 是唯一促进 H2 活化的配体。此外，还合成了一个键合的吡啶基部分，并发现它完全抑制了 H2 的活化。因此，我们得出结论，H2O 是该模拟物的理想配体，因为它具有适度的碱性和两个孤对电子，可同时与 Ru 和 H2 结合。