in dichloromethane byproducts: (SC(CH3)3)2; N2, Fe:Au=0.136:0.276 molar ratio, Fe compd. added to a soln. of Au compd., stirred for 30 min; solvent evapd., residue washed (diethyl ether, benzene), dried (vac.), recrystd. (CH2Cl2, -5°C), org. phases evapd. to dryness, ferrocenesublimied (40°C, high vac.); elem. anal.;