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Copper Co-ordination to Thioether Ligands. Chemical, Spectroscopic, and Crystallographic Studies on Copper(I) Complexes of 2-(3,3-Dimethyl-2-thiabutyl)pyridine and the 2-(3,3-Dimethyl-2-thiabutyl)pyridinium Cation

DOI: 10.1039/DT9810001746

Source and publish data:

Journal of the Chemical Society, Dalton Transactions p. 1746 - 1752 (1981)

Update date:2022-08-04

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Authors:

Ainscough, Eric W.Ainscough, Eric W.

Baker, Edward N.Baker, Edward N.

Brodie, Andrew M.Brodie, Andrew M.

Larsen, Nigel G.Larsen, Nigel G.

Brown, Kevin L.Brown, Kevin L.

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Article abstract of DOI:10.1039/DT9810001746

The ligand 2-(3,3-dimethyl-2-thiabutyl)pyridine (L) and its protonated cation, 2-(3,3-dimethyl-2-thiabutyl)pyridimium ion (LH+), have been used to prepare the copper(I) complexes nBr> (n = 1 or 2) and (X = Cl or Br).Electronic and i.r. spectroscopic data for these complexes are presented, and the chemical relationships between them discussed.The crystal and molecular structures of and <(Cu(LH)Br2)2> have been determined by single crystal X-ray diffraction techniques, from diffractometer data.Crystals of are monoclinic, space group P21/n, with a = 16.927(3), b = 8.867(1), c = 15.371(2) Angstroem, β = 100.61(1) deg, and Z = 4.Crystals of <(Cu(LH)Br2)2> are also monoclinic, space group P21/n, with a = 15.700(3), b = 9.038(3), c = 9.926(2) Angstroem, β = 98.66(1) deg, and Z = 2.After full-matrix least-squares refinement final R values are 0.066 (for 2 032 observed reflections) and 0.047 (for 1 538 observed reflections) respectively.The complex is monomeric, the distorted tetrahedral geometry round the copper atom being completed by a bromide ion , the pyridyl nitrogen and thioether sulphur of a bidentate ligand L , and the thioether sulphur of a unidentate ligand L .The complex <(Cu(LH)Br2)2> exists as a centrosymmetric dimer with the distorted tetrahedral copper(I) centres dibromo bridged .The two remaining co-ordination positions round each copper are occupied by a terminal romide ion and the thioether sulphur of an LH+ cation.

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Product name:tert-Butyl(2-pyridinylmethyl) sulfide

Cas No:18794-45-1

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