METHOD OF PRODUCING CYANO-HALOGENIDE OCTAHEDRAL CLUSTER COMPLEXES OF MOLYBDEN (VERSIONS)

摘要

FIELD: chemistry.;SUBSTANCE: invention relates to the production of water-soluble cyano-halogenide octahedral cluster complexes of molybdenum of composition M₂[{Mo₆X₈}(CN)₆], where M=K or Na; X=Cl, Br or I. The method comprises reacting a cluster complex of molybdenum of composition MoX₂(Mo₆X₁₂), where X=Cl, Br or I with potassium or sodium cyanide in a molar ratio of 1:7.2 in a methanol solution at 55°C for 2 days, or in a vacuum sealed ampoule at 650°C for 24 hours. Or, as the initial cluster complex of molybdenum, Cs₂[{Mo₆X₈}X₆] or [{Mo₆X₈}(OH)₄(H₂O)₂], where X=Cl, Br or I, which reacts with potassium or sodium cyanide in a molar ratio of 1:7.2 in aqueous solution at 90°C for 3 days. Water-soluble cyano-halogenide octahedral cluster complexes of molybdenum are produced in high yield and the purity of the desired product.;EFFECT: produced compounds are promising as radiopaque substances.;2 cl, 12 ex