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

摘要

In the title compound, [Au2Ba(NCS)4(C20H24O6)]n, the dithio­­cyanato­aurate(I) anion adopts a dimeric structure with an Au⋯Au 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 Ba⋯N 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.