Structure of the silver imidodi(sulphuryl fluoride)-benzene solvate AgN(SO 2F) 2·C 6H 6

Abstract

The structure of the monobenzene solvate of silver imidodi(sulphuryl fluoride), AgN(SO 2F) 2 · C 6H 6, was determined from single crystal X-ray data. The asymmetric unit contains one quarter of the formula unit with the silver and nitrogen atoms lying at the intersection of two mirror planes; the sulphur and one of the oxygen atoms, O(2), lie on the same mirror plane. The remaining substituent at sulphur is in a general position that must be occupied equally by oxygen and fluorine and is designated as O/F (1). The bonding between silver and benzene is of a new type, in which each benzene is symmetrically η 2-coordinated (Ag-C 2.490(7) Å) to each of two silver atoms to give infinite chains parallel to the c axis. A weak C(1)-H(1) ṫ O/F(1) hydrogen bond (C ṫ O/F 3.47 Å) was located, which cross-links these chains in the b direction, and probably accounts for the fact that the more electronegative fluorine atom predominantly occupies the general position.