Nickel(ii) PE1CE2P pincer complexes (E = O, S) for electrocatalytic proton reduction

被引：21

作者：

Kaur-Ghumaan, Sandeep ^{[1
,2
]}

Hasche, Patrick ^{[1
]}

Spannenberg, Anke ^{[1
]}

Beweries, Torsten ^{[1
]}

机构：

[1] Univ Rostock, Leibniz Inst Katalyse eV, Albert Einstein Str 29a, D-18059 Rostock, Germany

[2] Univ Delhi, Dept Chem, North Campus, New Delhi 110007, India

来源：

DALTON TRANSACTIONS | 2019年 / 48卷 / 43期

关键词：

IRON-SULFUR COMPLEXES; HYDROGEN EVOLUTION; MOLECULAR ELECTROCATALYSTS; TRANSFER-DEHYDROGENATION; COORDINATION MODES; NI PINCER; LIGAND; IRIDIUM; COBALT; CARBON;

D O I：

10.1039/c9dt03626a

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Nickel(ii) chloride and thiolate complexes with (PECEPiPr)-P-iPr-C-1-P-2 (E = O, S) pincer ligands were investigated as electrocatalysts for the hydrogen evolution reaction in CH3CN in the presence of acetic acid and trifluoroacetic acid. The bis(thiophosphinite) (S,S) chloride complex reduced protons at the lowest overpotential in comparison with the bis(phosphinite) (O,O) and mixed phosphinite-thiophosphinite (O,S) complexes. A combination of electrochemical, NMR and UV-vis spectroscopic and mass spectrometric experiments provides mechanistic insights into the catalytic cycle for proton reduction to dihydrogen.

引用

页码：16322 / 16329

页数：8

共 28 条

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