Synthesis, spectroscopic and X-ray characterization of new molecular organotitanium(IV) phosphonate

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• 作者：Andrej Pevec ; Alojz Demš ; ar ; Jiri Pinkas ; Marek Necas
• 关键词：Titanium ; Phosphonate ; Crystal structure ; Hydrogen bond
• 刊名：Inorganic Chemistry Communications
• 出版年：2008
• 出版时间：January 2008
• 年：2008
• 卷：11
• 期：1
• 页码：5-7
• 全文大小：205 K

文摘

Dititanate [{Ti(C₅Me₄Et)(μ-O₂P(OH)Me)(μ-O₂P(O)Me)}₂] (1) was prepared from (C₅Me₄Et)TiF₃ and MeP(O)(OSiMe₃)₂. The molecular structure of compound 1 has been determined by single-crystal X-ray diffraction analysis. In the cage cluster, two titanium atoms are bridged by two bidentate monoanionic and by two bidentate dianionic phosphonate groups. The OH group of the monoanionic phosphonate and oxygen atom of the dianionic phosphonate are connected by strong intramolecular hydrogen bond. The NMR spectroscopy reveals the fast proton migration within the hydrogen bond.