GROUP 11 METAL IONS IN POLY(DONOR ATOM) ENVIRONMENTS: X-RAY CRYSTAL AND MOLECULAR STRUCTURE OF (M((R,S)-1,2-(5-R-THIO-2-CH:N)2-C-HX)2)(O3SCF3) (M = AG(I), R = ME, THIO = THIOPHENE, C-HX = CYCLOHEXANE) AND SILVER(I) AND COPPER(I) COORD