in diethyl ether; dichloromethane byproducts: Hg-halocomplexes; addn. of stoich. amt. HgBr2 (in ether) to Ir-complex (in CH2Cl2), then addn. of excess Bu4NCl; not isolated, detd. by UV/VIS and IR spectroscopy;

in diethyl ether; dichloromethane byproducts: Hg-halocomplexes; addn. of stoich. amt. HgBr2 (in ether) to Ir-complex (in CH2Cl2), then addn. of excess Bu4NI; not isolated, detd. by UV/VIS and IR spectroscopy;

in diethyl ether; dichloromethane byproducts: Hg-halocomplexes; addn. of stoich. amt. HgBr2 (in ether) to Ir-complex (in CH2Cl2), then addn. of excess Bu4NBr; not isolated, detd. by UV/VIS and IR spectroscopy;