Tetrakis[(benzene-18-crown-6)potassium]bis[tris(thiocyanato)copper(I)]

Xing-Min Song; Xian-Qiang Huang; Jian-Min Dou; Da-Cheng Li

doi:10.1107/S160053680800442X

Tetrakis[(benzene-18-crown-6)potassium]bis[tris(thiocyanato)copper(I)]

Acta Crystallogr Sect E Struct Rep Online. 2008 Feb 20;64(Pt 3):m489. doi: 10.1107/S160053680800442X.

Authors

Xing-Min Song¹, Xian-Qiang Huang, Jian-Min Dou, Da-Cheng Li

Affiliation

¹ College of Chemistry and Chemical Engineering, Liaocheng University, Shandong 252059, People's Republic of China.

Abstract

The title complex, bis-(μ-benzene-18-crown-6)-3κ(6)O:4κO;4κ(6)O:3κO-bis-(benzene-18-crown-6)-1κ(6)O,6κ(6)O-tetra-μ-thiocyanato-1:2κ(2)S:N;2:3κ(2)N:S;4:5κ(2)S:N;5:6κ(2)N:S-dithio-cyanato-2κN,5κN-2,5-dicopper(I)-1,3,4,6-tetra-potassium(I), [K(4)Cu(2)(NCS)(6)(C(16)H(24)O(6))(4)] or {[K(C(16)H(24)O(6))](4)[Cu(NCS)(3)](2)}, consists of four [K(benzene-18-crown-6)](+) cations and two [Cu(NCS)(3)](2-) anions, forming a dimeric structure with site symmetry . In each [Cu(NCS)(3)](2-) anion, the Cu(I) atom is coordinated by three N atoms of thio-cyanate ligands in a trigonal-planar coordination geometry. Each [Cu(NCS)(3)](2-) anion bridges two [K(benzene-18-crown-6)](+) cations, with K-S distances of 3.317 (3) and 3.198 (3) Å, and two [K(benzene-18-crown-6)](+) cations are linked across a crystallographic centre of inversion, with K-O distances of 2.903 (5) Å.