Structures of bis-ethylmaltolatodichloro-tin(IV) and -titanium(IV) and of trichloro(1-methyl-2-ethyl-3-hydroxy-4H-pyridin-4-onato)aquatin(IV)

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• 作者：Alshehri ; Saad ; et. al.
• 关键词：Crystal structures ; 2-Ethyl-3-hydroxy-4-pyranonate ; Ethylmaltol ; 1-Methyl-2-ethyl-3-hydroxy-4-pyridinonate ; Tin(IV) ; Titanium(IV)
• 刊名：Polyhedron
• 出版年：2000
• 出版时间：February 28, 2000
• 年：2000
• 卷：19
• 期：4
• 页码：399-405
• 全文大小：176 K

文摘

The structures of solvates of the bis-ethylmaltolatodichloro-metal(IV) complexes M(etma)₂Cl₂, with M=Sn and Ti, and of trichloro(1-methyl-2-ethyl-3-hydroxy-4H-pyridin-4-onato)aquatin(IV), Sn(mepp)Cl₃(H₂O), have been established by single crystal X-ray diffraction methods. Sn(etma)₂Cl₂ crystallised with one molecule of dichloromethane, Ti(etma)₂Cl₂ with one molecule of tetrahydrofuran, and Sn(mepp)Cl₃(H₂O) with one molecule of acetone, from their respective recrystallisation media. Both ethylmaltol complexes M(etma)₂Cl₂ are cis-octahedral. The coordination around the tin atom in Sn(mepp)Cl₃(H₂O) approximates to octahedral, with the three chloride ligands in fac geometry. The tin(IV)–water bond distance in this pyridinone complex is discussed in relation to this distance in other aquatin(IV) complexes. The effects of coordinating tin(IV) on the geometry of the coordinated pyridinone are considered.