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The Interaction of 1-Methylimidazoline-2(3H)-thione with Copper(II) Salts

DOI: 10.1039/DT9890000039

Source and publish data:

Journal of the Chemical Society, Dalton Transactions p. 39 - 42 (1989)

Update date:2022-07-30

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Authors:

Ainscough, Eric W.Ainscough, Eric W.

Baker, Edward N.Baker, Edward N.

Bingham, Alistair G.Bingham, Alistair G.

Brodie, Andrew M.Brodie, Andrew M.

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Article abstract of DOI:10.1039/DT9890000039

The interaction of 1-methylimidazoline-2(3H)-thione with the appropriate copper(II) species in ethanol solution directly produces the blue mixed-valence complexes, I10CuII2(L1)12(H2O)4>X2*yH2O (X=O2CMe or OH, y=2; X=ClO4 or PF6, y=0).With CuCl2*2H2O the product is dependent on the HL1: Cu molar ratio.If HL1 was in excess, e.s.r. spectroscopy indicated the formation of a 'CuIIS4' species, viz. 1)4>2+, in solution.At a 3:1 (HL1:Cu) molar ratio (CuII added to HL1) the known copper(I) complex, 1)4Cl2> is obtained.However, using a 1.5:1 (HL1:Cu) molar ratio, and with HL1 added to CuII, the product is a mixed-valence complex formulated as 1)2Cl3>.These compounds and others obtained with imidazolidine-2-thione (HL2) and 4,5-diphenylimidazoline-2(3H)-thione (HL3), have been characterized by spectroscopic techniques.In nitromethane solution HL1 reacts in the presence of copper to yield the chelate N-donor ligand, bis(1-methylimidazol-2-yl)sulphide (L4)in the dimetric complex 4)2Cl4>.

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Product name:Cu(4,5-diphenylimidazoline-2(3H)-thionate)C}

Cas No:118604-78-7

118604-78-7

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