Corfield PWR, Seeler U. Crystal structure of bis-(1,1,2,2-tetra-methyl-diphosphane-1,2-di-thione-κ(2) S,S')copper(I) tetra-fluorido-borate.
ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS 2015;
71:716-9. [PMID:
26090159 PMCID:
PMC4459368 DOI:
10.1107/s2056989015009913]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/19/2015] [Accepted: 05/22/2015] [Indexed: 11/26/2022]
Abstract
In the title salt, [Cu(C4H12P2S2)2]BF4, both diphosphine disulfide molecules bind to the CuI atom as chelating ligands via the S atoms, forming a monovalent cation with a slightly distorted tetrahedral coordination around the CuI atom. The ligand chelate rings are twisted in opposite directions, with one in the λ and one in the δ configuration. In the crystal, possible C—H⋯F hydrogen bonds may stabilize the orientation.
In the title compound, [Cu(C4H12P2S2)2]BF4, both diphosphine disulfide molecules bind to the CuI atom, as chelating ligands via the S atoms, forming a monovalent cation with a slightly distorted tetrahedral coordination around the CuI atom. The average Cu—S distance is 2.350 (15) Å, with small but possibly significant differences within each chelate ring. Ligand P=S distances average 1.964 (3) Å, and the P—P distances are 2.2262 (13) and 2.2166 (14) Å. The ligand chelate rings are twisted in opposite directions, with one in the λ and one in the δ configuration. Although the anisotropic displacement parameters of the F atoms of the anion are quite large compared to that of the B atom, difference Fourier syntheses indicate only one set of sites for the F atoms. In the crystal, possible C—H⋯F hydrogen bonds may stabilize the orientation. The B—F distances, uncorrected for libration, average 1.359 (6) Å.
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