Abstract
New bimetallic organometallic compounds of lanthanides [(Me 3SiCH 2) 3Sn] 3-Ln - DME have been prepared by interaction of tris(trimethylsilylmethyl)tin hydride with [(Me 3Si) 2N] 3Ln (Ln Pr, Nd) in 1,2-dimethoxyethane (DME). Reactions of triphenylgermane and triethyltin hydride with tris[bis(trimethylsilyl)amido]-praseodymium and -neodymium was shown to be complicated by the cleavage of an ether bond of DME to afford compounds of the composition (R 3M) n Ln(OCH 2CH 2OMe) 3- n DME( n 1 or 2; R Et, M Sn; R Ph, M Ge). The compounds obtained are weakly coloured solids, sensitive to oxygen and moisture. It has been shown that reactions of these compounds with hydrogen chloride, 1,2-dibromoethane, benzoyl peroxide, silver trifluoroacetate and other reagents proceed with cleavage of the tin—lanthanide bonds. The mechanism of the reactions being studied is discussed.
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