Acta Cryst. (2009). E65, m1509-m1510  [ doi:10.1107/S1600536809045218 ]

catena-Poly[[(6,7,9,10,17,18,20,21-octahydro-5,8,11,16,19,22-hexaoxadibenzo[a,j]cyclooctadecene)barium]-di--thiocyanato-[thiocyanatodiaurate(I)(Au-Au)]--thiocyanato]

T. L. Stroud, N. L. Coker and J. A. Krause

Abstract: In the title compound, [Au₂Ba(NCS)₄(C₂₀H₂₄O₆)]_n, the dithiocyanatoaurate(I) anion adopts a dimeric structure with an AuAu distance of 3.1109 (10) Å; both Au^I atoms are also bonded to two S atoms. The Ba^II ion adopts an irregular BaN₃O₆ geometry, arising from the crown ether and three adjacent thiocyanate N atoms; the extended structure of the complex can be described as a one-dimensional coordination polymer generated by the BaN interactions (two on the endo side and one on the exo side of the crown ether) running parallel to the b axis, with an antiparallel arrangement of ribbons in the unit cell.

Online 4 November 2009

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