Small Scorpionate Ligands: Silver(I)-Organophosphane Complexes of 5-CF3-Substituted Scorpionate Ligand Combining a B-H···Ag Coordination Motif

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• 作者：H. V. Rasika Dias ; Simone Alidori ; Giancarlo Gioia Lobbia ; Grazia Papini ; Maura Pellei ; Carlo Santini
• 刊名：Inorganic Chemistry
• 出版年：2007
• 出版时间：November 12, 2007
• 年：2007
• 卷：46
• 期：23
• 页码：9708 - 9714
• 全文大小：195K
• 年卷期：v.46,no.23(November 12, 2007)
• ISSN：1520-510X

文摘

The first 5-substituted trihydro(azolyl)borate system, the sodium trihydro(5-CF₃-pyrazol-1-yl)borate, Na[H₃B(5-(CF₃)pz)], has been synthesized by the reaction of 3-trifuoromethyl-pyrazole with NaBH₄ in high yield. Na[H₃B(5-(CF₃)pz)] reacts with AgNO₃ in the presence of monodentate tertiary phosphanes PR₃ (PR₃ = P(C₆H₅)₃, P(p-C₆H₄CH₃)₃,P(m-C₆H₄CH₃)₃, P(o-C₆H₄CH₃)₃, or PCH₃(C₆H₅)₂) to afford silver(I) bis(phosphane) adducts. These compounds havebeen characterized by elemental analyses, FTIR, ESI-MS, and multinuclear (¹H, ¹⁹F, and ³¹P) NMR spectroscopy.Solid-state structures of {[H₃B(5-(CF₃)pz)]Ag[P(C₆H₅)₃]₂} and {[H₃B(5-(CF₃)pz)]Ag[P(p-C₆H₄CH₃)₃]₂} are also reported.They feature ²-N,H-bonded trihydro(pyrazolyl)borate ligands and pseudo-tetrahedral silver atoms.