Synthesis and crystal structures of two new tin bis­(carboranylamidinate) complexes

Acta Crystallographica Section E: Crystallographic Communications

Edelmann, F.T.¹  Harmgarth, N.¹  Busse, S.²  Liebing, P.³  Hillebrand, P.⁴ 

[1] Chemisches Institut der Otto-von-Guericke-UniversitäETH Zurich, Laboratory for Inorganic Chemistry, Vladimir-Prelog-Weg 1-5/10, 8093, Zurich, Switzerland;t Magdeburg, Universitätsplatz 2, 39106 Magdeburg, Germany

关键词: CRYSTAL STRUCTURE;    CARBORANE;    AMIDINATE;    CARBORANYLAMIDINATE;    TIN;   

DOI  :  10.1107/S2056989017012671

学科分类：数学（综合）

来源: International Union of Crystallography

【 摘 要 】

Reaction of 2 equiv. of the lithium carboranylamidinate Li[o-(C2H10B10)C(NCy)(NHCy)] with SnCl2 in THF afforded the stannylene compound bis(N,N′-dicyclohexylamidinatocarboranate)tin(II), SnII[o-(C2H10B10)C(NCy)(NHCy)]2 (1). A similar reaction of SnCl4 with 2 equiv. of Li[o-(C2H10B10)C(NiPr)(NHiPr)] unexpectedly afforded the known solvated penta­chlorido­stannate(IV) salt [Li(THF)4][SnCl5(THF)] as the main reaction product. Small amounts of the new chlorido-tin(IV) bis­(carboranylamidinate) bis(N,N′-diiso­propylamidinatocarboranate)chloridotin(IV), SnIVCl[o-(C2H10B10)C(NiPr)(NHiPr)][o-(C2H10B10)C(NiPr)2] (2), were isolated as a by-product. Single-crystal X-ray structure analysis revealed a κC,κN-chelating coordination of the carboranylamidinate ligands in both 1 and 2. The Sn atom in 1 adopts a pseudo-trigonal–bipyramidal coordination under participation of a stereoactive lone pair. In 2, a trigonal–bipyramidal coordination of Sn is completed by a chlorido ligand.

【 授权许可】

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