Pentacoordinate nickel(II) complexes with one 1,1-dithio and one macrocyclic ligand. Electro-oxidation to nickel(III) in solution

Add time:08/25/2019    Source:sciencedirect.com

The synthesis and electrochemical behaviour of the nickel(II) macrocyclic derivatives [Ni(MC1)L](ClO4) and [Ni(MC2)L](ClO4) where MC1 is 2,4,4-trimethyl-1,5,9-triazacyclododec-1-ene and MC2 is 2,4,4,9-tetramethyl-1,5,9-triazacyclododec-1-ene, and L− stands for the 1,1-dithio monoanions, dimethyldithiocarbamate (Me2Dtc−), diethyldithiocarbamate (Et2Dtc−) or pyrrolidindithiocarbamate (PyDtc−), are described. The analytical and spectroscopic data are consistent with a pentacoordinate geometry. Electrochemical studies of these complexes indicate a reversible oxidation process yielding nickel(III) species unstable at room temperature. EPR studies indicate that these short-lived low-spin d7 nickel(III) species have their unpaired electron in the dz2 orbital.

We also recommend Trading Suppliers and Manufacturers of Nickel bis(dimethyldithiocarbamate) (cas 15521-65-0). Pls Click Website Link as below: cas 15521-65-0 suppliers

Prev:Comparative investigation of N,N′-bis-(dithiocarboxy)piperazine and diethyldithiocarbamate as precipitants for Ni(II) in simulated wastewater
Next:Syntheses, crystal structure and spectroscopic characterization of bis(dithiocarbimato)zinc(II) complexes: A new class of vulcanization accelerators)