Taking Advantage of Hg−C Bonds: Synthesis of the First Homoleptic Bis-β-diketiminate Complex Bound through the γ-Carbons

详细信息    查看全文

• 作者：Lorenzo Ferro ; Martyn P. Coles ; Iain J. Day ; J. Robin Fulton
• 刊名：Organometallics
• 出版年：2010
• 出版时间：July 12, 2010
• 年：2010
• 卷：29
• 期：13
• 页码：2911-2915
• 全文大小：733K
• 年卷期：v.29,no.13(July 12, 2010)
• ISSN：1520-6041

文摘

The most common β-diketiminate ligand, [{N(2,6-ⁱPr₂C₆H₃)C(Me)}₂CH]⁻ (BDI), was used to synthesize a new mercury complex in which two BDI ligands are bound to the metal through the γ-carbons in the solid state. In solution, one of the BDI ligands switches to an N,N′-binding mode; this complex is in equilibrium with the homoleptic species. The thermodynamic parameters, ΔH° (−2.52 kcal mol⁻¹), ΔS° (−9.24 cal mol⁻¹ K⁻¹), and ΔG°₂₉₈ (0.23 kcal mol⁻¹), were measured using variable-temperature ¹H NMR spectroscopy.