A crystallographically isolated dimeric hydrolyzed chloro-phosphazene dianion

Abstract

Single crystals of the title compound bis[bis-(1-ethyl-3-methyl-imidazol-2- yl-idene)silver(I)] 1,5,5,7,11,11-hexa-chloro-2,8-di-oxa-4,6,10,12,13,14-hexa- aza-15,3,55,75,9,115-hexa-phospha- tricyclo-[7.3.1.13,7]tetra-deca-1(13),4,7(14),10-tetra-ene-6, 12-diide 3,9-dioxide, [Ag(C6H10N2)2](Cl6N6O4P6)0.5, were isolated from the reaction of the silver N-heteocyclic carbene complex [Ag(C6H10N2)2]Cl and hexa-chloro-cyclo-triphos-phazene [NPCl2]3 in the presence of water. The asymmetric unit contains one silver carbene cation with the carbene ligands bound to the Ag(I) in an almost linear arrangement and one half of a hydrolyzed phosphazene dianion. The second cation and additional half of the anion are generated by an inversion center.