The synthesis and structural characterization of bis(mercaptoimidazolyl)hydroborato complexes of lithium, thallium and zinc †
- 1 March 2000
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc., Dalton Trans.
- No. 6,p. 891-897
- https://doi.org/10.1039/a908411h
Abstract
Bidentate [S2]-donor bis(mercaptoimidazolyl) ligands, [BmMe]− and [BmMes]−, have been synthesized by reaction of [BH4]− with 2-mercapto-1-methylimidazole and 2-mercapto-1-mesitylimidazole, respectively. Subsequent treatment with ZnX2 (X = Me, I, NO3) yields a series of 1∶1 [BmR]ZnX complexes, namely [BmMe]ZnMe, [BmMe]ZnI and [BmMes]Zn(NO3), each of which possesses 3-center–2-electron [Zn H–B] interactions. The homoleptic complex, [BmMe]2Zn, may be obtained by a redistribution reaction of [BmMe]ZnMe in CHCl3, and possesses a tetrahedral zinc center which is devoid of a 3-center–2-electron [Zn H–B] interaction.Keywords
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