A novel flower basket-shaped organosilyl derivative based on trivacant tungstosilicate: [(C₄H₉)₄N]₃H[α-A-SiW₉O₃₄(CH₃SiO)₆]·3H₂O

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• 作者：Ke Wang^a ; Pengtao Ma^a ; Qingxia Yan^a ; Jingping Wang ; ^a ; ^{jpwang@henu.edu.cn"" rel=""nofollow} ; Jingyang Niu ; ^a ; ^{jyniu@henu.edu.cn"" rel=""nofollow}
• 关键词：Polyoxometalate ; Hexasubstituted ; organosilyl ; Tungstosilicate
• 刊名：Inorganic Chemistry Communications
• 出版年：2011
• 出版时间：September 2011
• 年：2011
• 卷：14
• 期：9
• 页码：1377-1380
• 全文大小：656 K

文摘

A novel hexasubstituted organosilyl derivative based on trivacant tungstosilicate [(C₄H₉)₄N]₃[α-A-SiW₉O₃₄(CH₃SiOH)₆]·3H₂O (1), was synthesized under phase-transfer conditions, by the reaction of the CH₃SiHCl₂ with Na₁₀[α-SiW₉O₃₄]∙18H₂O, which was characterized by IR spectrum, elemental analyses and X-ray single crystal diffraction. X-ray structural analysis reveals that 1 crystallizes in hexagonal space group R_3m, with lattice constants a = 26.0333(2) Å, b = 26.0333(2) Å, c = 13.7239(2) Å, V = 8055.02(15) ų, and Z = 3, which consists of a trivacant Keggin moiety [α-A-SiW₉O₃₄]¹⁰⁻, on which six {CH₃Si} groups are grafted via six SiOW bridges, and that each of the six {CH₃Si} groups links with two adjacent ones through SiOSi bridges resulting in a unique flower basket-shaped polyoxoanion framework.