Structure of a hepta-nuclear termetallic oxo-alkoxide: Eu₃K₃TiO₂(OBu^t)₁₁(OMe/OH)(HOBu^t)

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• 作者：Erik Berger and Gunnar Westin
• 关键词：Precursor chemistry ; Oxo ; alkoxide ; Crystal structure ; Alkoxide ; Sol– ; gel precursor ; Europium ; Termetallic alkoxide ; Structure
• 刊名：Journal of Sol-Gel Science and Technology
• 出版年：2010
• 出版时间：March, 2010
• 年：2010
• 卷：53
• 期：3
• 页码：681-688
• 全文大小：396.8 KB

文摘

The novel termetallic oxo-methoxo-tert-butoxide Eu₃K₃TiO₂(OBut)₁₁(OMe/OH)(HOBut) (1) has been synthesised and structurally and spectroscopically characterised. Its unusual structure features an Eu₃K₃O fac-octahedron, capped by a distorted K₃TiO tetrahedron on the K₃ face. The compound, crystallising in space group P2₁/n with cell parameters a = 14.44 ?, b = 23.58 ?, c = 21.27 ? and β = 96.18¡ã, is the result of incomplete metathesis between EuCl₃ and potassium and titanium tert-butoxides in combination with deliberate hydrolysis and decomposition. It provides one of few examples of termetallic lanthanide alkoxides, as well as of an alkoxide tert-butyl group decomposing into a methyl group.