Acta Cryst. (2009). E65, m105  [ doi:10.1107/S1600536808042116 ]

A crystallographically isolated dimeric hydrolyzed chlorophosphazene dianion

M. J. Panzner, W. J. Youngs and C. A. Tessier

Abstract: Single crystals of the title compound bis[bis(1-ethyl-3-methyl-imidazol-2-ylidene)silver(I)] 1,5,5,7,11,11-hexachloro-2,8-dioxa-4,6,10,12,13,14-hexaaza-1⁵,3,5⁵,7⁵,9,11⁵-hexaphosphatricyclo[7.3.1.1^3,7]tetradeca-1(13),4,7(14),10-tetraene-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 hexachlorocyclotriphosphazene [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.

Online 20 December 2008

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