Synthesis and Structural Characterization of an Unprecedented Nonmetal Cation Polyborate Salt Containing Two Different 鈥淚solated鈥?Polyborate Anions: [H2en]2[B4O5<

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• 作者：Michael A. Beckett ; Peter N. Horton ; Simon J. Coles ; David W. Martin
• 刊名：Inorganic Chemistry
• 出版年：2011
• 出版时间：December 5, 2011
• 年：2011
• 卷：50
• 期：23
• 页码：12215-12218
• 全文大小：247K
• 年卷期：v.50,no.23(December 5, 2011)
• ISSN：1520-510X

文摘

The nonmetal cation polyborate salt of stoichiometry [H₂en]₂[B₁₁O₁₈(OH)]路7H₂O is obtained from the reaction of 1,2-diaminoethane and boric acid (1:5 ratio) in H₂O/MeOH. An X-ray crystallographic study of the product reveals that the polyborate moiety is composed of two isolated hydrated polyborate anions: [B₄O₅(OH)₄]^{2鈥?/sup> and [B₇O₉(OH)₅]2鈥?/sup>. The structure is templated by the cations with the anions forming a supramolecular H-bonded network, augmented by additional H-bonds involving the waters of crystallization and the cations.}