Abstract
The synthesis and characterisation were described for tetranuclear phosphocavitand complexes 4, where each phosphorus atom is coordinated to the silver atom, and tetranuclear heterobimetallic phosphocavitand complexes 6, in which only three phosphorus atoms are coordinated to silver and the fourth phosphorus atom is coordinated to molybdenum. Compounds 4 were obtained by the reaction of AgBr with amidophosphitocavitands 1. Compounds 6 were synthesised by the reaction of AgBr with mononuclear molybdenum complexes of amidophosphocavitands 3. It was found that, in the presence of diethylammonium cation, 4a forms anionic complex [(C 2H 5) 2NH 2][cavitand·Ag 4(μ-Br) 4(μ 4-Br)] ( 5), whose structure was supported by X-ray diffraction analysis.
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