Electrocatalytic proton reduction by an air-stable nickel(II)-thiolato PNN pincer complex

被引：13

作者：

Yap, Chew Pheng ^{[1
]}

Chong, Yuan Yi ^{[1
]}

Chwee, Tsz Sian ^{[2
]}

Fan, Wai Yip ^{[1
]}

机构：

[1] Natl Univ Singapore, Dept Chem, 3 Sci Dr 3, Singapore 117543, Singapore

[2] ASTAR, Inst High Performance Comp, 1 Fusionopolis Way, Singapore 138632, Singapore

来源：

DALTON TRANSACTIONS | 2018年 / 47卷 / 25期

关键词：

ELECTROCHEMICAL HYDROGEN-PRODUCTION; TURNOVER FREQUENCY; ONLY HYDROGENASE; METAL-COMPLEXES; H-2; PRODUCTION; NI PINCER; GENERATION; ALCOHOLS; LIGAND; S(-1);

D O I：

10.1039/c8dt00911b

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

We report an air-stable nickel(ii)-thiolato PNN pincer complex [(PNN)Ni-II(SC6H4Me)](+)[MeC6H4SO3](-) (PNN = 2-((di-tert-butylphosphinomethyl-6-diethylaminomethyl)pyridine)) which is capable of reducing protons at an overpotential of 0.54 V at low acid concentrations. The proton reduction can be catalysed using weak or strong acids such as acetic acid and trifluoroacetic acid respectively. In contrast, the chloro and nitrate derivatives of the nickel pincer complex behave as poorer catalysts. A mechanism accounting for the role of the ligand in proton reduction is also briefly outlined.

引用

页码：8483 / 8488

页数：6

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