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    • 7. 发明公开
    • A METHOD OF SYNTHESIS OF UNSOLVATED MIXED CATION BOROHYDRIDES
    • 一种合成无溶剂混合阳离子硼氢化合物的方法
    • EP3164358A1
    • 2017-05-10
    • EP14789366.3
    • 2014-09-18
    • Uniwersytet Warszawski
    • JARO , TomaszWEGNER, WojciechGROCHALA, Wojciech
    • C01B6/24
    • C01B6/246
    • The present invention relates to a novel method of synthesis of unsolvated mixed cation borohydrides of a general formula Μ
      x Μ'
      y (ΒΗ
      4 )
      z , where M and M' stand for metal cations, x, y and z are stoichiometric coefficients. The method of synthesis according to the present invention is characterized in that the precursors having a general formula M[An]
      u and [Cat]
      v M'(BH
      4 )
      w are used for the synthesis, where [An] stands for a weakly coordinating anion; [Cat] stands for a weakly coordinating cation; u, v and w are the stoichiometric coefficients; and the synthesis is carried out under an inert to the reagents atmosphere - according to the general reaction equation: x M[An]
      u + y [Cat]
      v M'(BH
      4 )w → M
      x M'
      y (BH
      4 )
      z + xu [Cat][An] where z = yw, xu = yv; M
      x M'
      y (BH
      4 )
      z is the product of the reaction; [Cat][An] is the by-product of the reaction which can be separated from the product using a properly selected solvent or a mixture of solvents, which neither dissolves, nor solvates the product M
      x M'
      y (BH
      4 )
      z , while completely dissolves the by-product [Cat] [An]. The method according to the present invention allows obtaining unsolvated mixed cation borohydrides in a pure form without impurities. The process is quick, efficient and environmentally friendly. Using the method according to the present invention it is possible to easily design composition of the synthesised mixed cation borohydrides. An additional advantage is the possibility of synthesis of simple borohydrides, which can not be obtained in a pure form using previously known methods.
    • 本发明涉及合成通式为M x M'y(BH 4)z的非溶剂化混合阳离子硼氢化物的新方法,其中M和M'代表金属阳离子,x,y和z是化学计量系数。 根据本发明的合成方法的特征在于具有通式M [An] u和[Cat] vM'(BH4)w的前体用于合成,其中[An]代表弱配位阴离子 ; [Cat]代表弱配位阳离子; u,v和w是化学计量系数; 根据以下一般反应方程式对反应气氛进行合成:x M [An] u + y [Cat] v M'(BH4)w→MxM'y(BH4)z + xu [ Cat] [An]其中z = yw,xu = yv; MxM'y(BH4)z是反应的产物。