[Me4N]2[(WOS3)2Ag2]: A Novel Quasi-One-Dimensional Compound

Orange-yellow plate-like crystals of a new polymeric complex [Me4N]2[(WOS3Ag)2] were obtained at room temp. from the reaction of a suspension of [Me4N]2[WOS3] in MeCN with solid AgCN. The new compd. is obviously formed by cyanide elimination of primary [WOS3(AgCN)]2-. It is monoclinic space group P21/c with a 20.44(2), b 9.655(6), c 11.913(5) .ANG.,  99.06(2), Z = 4. The crystal structure was detd. from single crystal diffractometer data (Mo-K radiation) and refined to R = 0.070 (2979 reflections, 199 variables). The structure was characterized by infinite anionic chains,  1[(WOS3Ag)2]2-. The IR spectrum of the complex (KBr powder) shows the terminal (W-O) as strong absorption bands found at 913 and 905 cm-1. The bridging (W-S) shows bands at 438 (vs) and 434 (sh) cm-1. The anionic mass spectrum shows a peak at m/z 404 for [WOS3Ag]-. The primary formation of the potential monomeric precursor [WOS3(AgCN)]2- could be established in the filtrate by mass spectroscopy.