Pentacoordination at antimony in dibenzostibocines via D–Sb transannular interactions (D = O, S): A structural study

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• 作者：José ; G. Alvarado-Rodrí ; guez ; Simplicio Gonzá ; lez-Montiel ; Noemí ; Andrade-Ló ; pez ; Liliana B. Ló ; pez-Feliciano
• 关键词：Antimony complexes ; Hypervalent compounds ; Dithiocarbamate derivatives ; Structure elucidation
• 刊名：Polyhedron
• 出版年：2007
• 期刊代码：87_02775387
• 类别：ch
• 出版时间：6 August 2007
• 卷：26
• 期：13
• 页码：2929-2934
• 文件大小：484 K

摘要

Addition of M₂SCN(CH₂R)₂ to D(C₆H₄S)₂SbCl in methylene chloride solution leaded to the formation of the stable compounds D(C₆H₄S)₂SbS₂CN(CH₂R)₂ (D = O, R = Me, 1; D = S, R = Me, 2; R = Ph, 3). The new dibenzostibocines derivatives containing two different types of dithioligands were characterized by elemental analysis and spectroscopic studies (IR, ¹H and ¹³C NMR). Single crystal X-ray diffraction determinations of complexes 1–3 revealed that the antimony atom acts as an acceptor atom exhibiting an intramolecular transannular interaction with the donor D atom, expanding its coordination from three to five and displaying a skew trapezoidal local geometry.