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Synthesis and crystal structure of a copper(I) complex containing tetrathiomolybdate and dihydrobis(3,5-dimethylpyrazolyl)borate ligands: [Et4N]2[(Bp′)CuMoS4Cu2 (μ-Bp′)2Cu2MoS4Cu(Bp′)] (Bp′ = H2B(3,5-Me2Pz)2) and crystal structure of [(Bp′)2Cu]

Lookup NU author(s): Emeritus Professor Bill Clegg

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Abstract

Complex (1), [Et4N]2[(Bp′)CuMoS4Cu2 (μ-Bp′)2Cu2MoS4Cu(Bp′)], was synthesised in acetone by substituting Cl- ligands of [MoS4(CuCl)3]2- by bidentate Bp′ ligands. It crystallises as a centrosymmetric dimeric anion, containing MoS4/2- and Bp′ units coordinated to Cu(I) atoms to form a novel structure. Bis(pyrazolyl)borate ligands are both bridging and terminal chelating. The copper(I) atoms have two different geometries: 3-coordinate by two S of thiomolybdate and one N of bridging Bp′, and 4-coordinate by two S of thiomolybdate and two N of terminal Bp′. An acetonitrile solution of complex (1) is unstable in air and deposits crystals of (2), [(Bp′)2Cu]. In complex (2), the Cu(II) atom resides on an inversion centre with square planar co-ordination. The crystal structure and molecular geometry of (2) are similar to those of its fluorinated analogue [H2B(3,5- (CF3)2Pz)2]2Cu. © 2001 Elsevier Science B.V.


Publication metadata

Author(s): Beheshti A, Clegg W, Hosaini Sadr M

Publication type: Article

Publication status: Published

Journal: Polyhedron

Year: 2001

Volume: 20

Issue: 3-4

Pages: 179-183

Print publication date: 01/01/2001

ISSN (print): 0277-5387

ISSN (electronic): 1873-3719

Publisher: Pergamon

URL: http://dx.doi.org/10.1016/S0277-5387(00)00594-5

DOI: 10.1016/S0277-5387(00)00594-5


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