Lewis Base Mediated Autoionization of GeCl2 and SnCl2

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• 作者：Amit Pratap Singh ; Herbert W. Roesky ; Elena Carl ; Dietmar Stalke ; Jean-Philippe Demers ; Adam Lange
• 刊名：The Journal of the American Chemical Society
• 出版年：2012
• 出版时间：March 14, 2012
• 年：2012
• 卷：134
• 期：10
• 页码：4998-5003
• 全文大小：276K
• 年卷期：v.134,no.10(March 14, 2012)
• ISSN：1520-5126

文摘

Cationic and anionic species of heavier low-valent group 14 elements are intriguing targets in main group chemistry due to their synthetic potential and industrial applications. In the present study, we describe the synthesis of cationic (MCl⁺) and anionic (MCl₃^{鈥?/sup>) species of heavier low-valent group 14 elements of germanium(II) and tin(II) by using the substituted Schiff base 2,6-diacetylpyridinebis(2,6-diisopropylanil) as Lewis base (LB). Treatment of LB with 2 equiv of GeCl₂路dioxane and SnCl₂ in toluene gives compounds [(LB)GeIICl]+[GeIICl₃]鈭?/sup> (1) and [(LB)SnIICl]+[SnIICl₃]鈭?/sup> (2), respectively, which possess each a low-valent cation and an anion. Compounds 1 and 2 are well characterized with various spectroscopic methods and single crystal X-ray structural analysis.}