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Synthesis, Structure, Magnetic and Electrochemical Properties of a Dinuclear Copper Complex
Author(s) -
Peng QiuXia,
Lin ChenNeng,
Zhang YunXiao,
Zhan ShuZhong,
Ni ChunLin
Publication year - 2016
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.201600115
Subject(s) - overpotential , copper , catalysis , electrochemistry , chemistry , formaldehyde , monomer , hydrogen , inorganic chemistry , ligand (biochemistry) , polymer chemistry , electrode , organic chemistry , polymer , biochemistry , receptor
A material for both magnetic coupling and electrocatalytic hydrogen evolution based on the copper complex, [(L) 2 Cu 2 ] is formed by the reaction of CuCl 2 · 2H 2 O with the tetradentate ligand 6‐(3‐aminomethylpropanol)‐2‐tert‐buty‐4‐methylphenol (H 2 L), which is prepared by reaction of 2‐ tert ‐butyl‐4‐methylphenol, 3‐amino‐1‐propanol, and formaldehyde. Structural studies show that in the solid state complex 1 exhibits strong antiferromagnetic exchange interaction between copper(II) ions mediated by oxygen‐bridges. In liquid, 1 becomes a monomer, and can electrocatalyze hydrogen generation both from acetic acid with a turnover frequency (TOF) of 101.70 mol of hydrogen per mole of catalyst per hour at an overpotential (OP) of 941.6 mV (in DMF), and a natural buffer with a TOF of 650 mol of hydrogen per mole of catalyst per hour at an OP of 836.7 mV.