title: Bis[bis-(3,5-diamino-1H-1,2,4-triazol-4-ium)copper(I)] tris-(hexa-fluoridosilicate).
abstract: In the title compound, [Cu(C(2)H(6)N(5))(2)](2)(SiF(6))(3), the asymmetric unit is composed of one [Cu(HL)(2)](3+) cation (where L is 3,5-diamino-1,2,4-triazole) and one and a half SiF(6) (2-) anions. The rather large positively charged guanazole ligand moiety promotes the low metal coordination number of 2 for the Cu(I) atom. The compound was obtained using the electrochemical alternating-current technique starting from an ethanol-methanol solution of CuSiF(6)·4H(2)O and guanazole. In the crystal, N-H⋯F hydrogen bonds play an important role in the formation of a three-dimensional network. As a result of these hydrogen bonds, there are also π-π inter-actions [centroid-centroid distance = 3.3024 (14) Å] involving one of the triazole groups in mol-ecules related by an inversion center, and short Cu⋯N inter-actions [2.909 (3) Å] involving an -NH(2) group, leading to the formation of a dimer-like arrangement.
authors: Marian
authors: M
authors: Mys'kiv
authors: Evgeny
authors: E
authors: Goreshnik
references: Acta Crystallogr C. 2005 Mar;61(Pt 3):m127-9
references: 15750226
references: Acta Crystallogr A. 2008 Jan;64(Pt 1):112-22
references: 18156677