Efficient electro/photocatalytic water reduction using a [NiII(N2Py3)]2+ complex

Pavithra H A Kankanamalage; Shivnath Mazumder; Vishwas Tiwari; Kenneth K Kpogo; H Bernhard Schlegel; Cláudio N Verani

doi:10.1039/c6cc06629a

Efficient electro/photocatalytic water reduction using a [Ni^II(N₂Py₃)]²⁺ complex

Chem Commun (Camb). 2016 Nov 8;52(91):13357-13360. doi: 10.1039/c6cc06629a.

Authors

Pavithra H A Kankanamalage¹, Shivnath Mazumder¹, Vishwas Tiwari¹, Kenneth K Kpogo¹, H Bernhard Schlegel¹, Cláudio N Verani¹

Affiliation

¹ Department of Chemistry, Wayne State University, 5101 Cass Ave., Detroit, MI 48202, USA. cnverani@chem.wayne.edu.

PMID: 27782271
DOI: 10.1039/c6cc06629a

Abstract

The pyridine-rich complex [Ni^II(L^N₂Py₃)(MeCN)](ClO₄)₂ (1) acts as an efficient electro- and photocatalyst in the generation of H₂ from water. Observed TONs reach 1050 for electrocatalysis and a remarkable 3500 for photocatalysis. Experimental and DFT data support the ligand-reduced [Ni^IL˙] as the catalytically active species, contrasting with the [Co^IL] observed for cobalt catalysts.