Decahydrate of di(M2-O)bis{aquaethylenediamine tetraacetatobismuthate (III)} of 1,6-di(2-toluidine)bis(dimethylglyoximato)cobalt (III) as precursor of the bismuth cobaltate

摘要

The invention relates to the chemistry of heterometallic coordinative compounds, namely to the decahydrate of di(µ2-O)-bis{aquaethylenediamine tetraacetatobismuthate(III)} of 1,6-di(2-toluidine)bis(dimethylglyoximato)cobalt(III)} 1,6-[Co(2-tol)2(DH)2]2[Bi2(H2O)2(Edta)2]·10H2O, where 2-tol=2-CH3C6H4NH2, DH2=CH3C(NOH)C(NOH)CH3, H4Edta=(HOOCCH2)2 N(CH2)2N(CH2COOH)2}, which may be used in radio electronics as initial compound for bismuth cobaltate obtaining.Summary of the invention consists in the synthesis of the decahydrate of di(µ2-O)-bis{aquaethylenediamine tetraacetatobismuthate(III)} of 1,6-di(2-toluidine)bis-(dimethylglyoximato)cobalt(III) of the formula:The compound obtained as a result of low-temperature pyrolysis and short-time high-temperature posttreatment forms a polycrystalline powder of BiCoO3.The bismuth cobaltate formation in such case proceeds in one stage, at a lower temperature (1,1 … 1,4 times) and more reduced time (2 … 12 times) compared with the closest solution.