Crystal structure of dicyclohexylammonium 2-mercaptobenzoatotriphenylstannate

Dicyclohexylammonium 2-mercaptobenzoatotriphenylstannate crystallizes in the monoclinicP2₁/n space group (a=11.171(2),b=17.891(5),c=17.190(3)Å;=105.08(2)°). The asymmetric unit consists of a (cyclo-C₆H₁₁)₂NH₂]⁺ cation hydrogen bonded (NO1=2.803(4) Å) to the stannate anion; the (C₆H₅)₃Sn]⁺ group is covalently linked to the sulfur end (Sn-S=2.427(1)Å) of the SC₆H₄C(O2)O1]^–2 moiety. The tin is five-coordinate in a distortedcis-trigonal bipyramidal environment in which the carboxyl O2 atom (Sn-O2=2.704(3)Å) and theipso-carbon of a phenyl ring occupy apical positions (O2-Sn-C1=168.7(1)°); the Sn-C_axial bond (Sn-C1=2.179(3)Å) is longer than the Sn-C_equatorial bonds (2.136(4), 2.139(3)Å). The stannate anion is linked to an adjacent cation (NO1=2.880(4)Å) to form a tightly held three-dimensional network structure.