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首页> 外文期刊>Journal of chemical crystallography >Diaquo(1,2-dimethoxyethane)lithium tetraphenylborate
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Diaquo(1,2-dimethoxyethane)lithium tetraphenylborate

机译：（1,2-二甲氧基乙烷）四苯基硼酸锂

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摘要

The structure of diaquo(1,2-dimethoxyethane)lithium tetraphenylborate, [Li(CH3OCH2-CH2OCH3)(H2O)(2)][BPh4], has been determined at 293 K. The compound crystallizes in the trigonal P3(1)21 space group (a = b = 9.9760(14), c = 23.662(5)). Both the lithium and the boron sit on a twofold rotation axis. The lithium is coordinated to two water oxygens and both ether oxygens of the 1,2-dimethoxyethane group. The coordination geometry is significantly distorted from a tetrahedron by the twisting of the plane containing the two water oxygens and the lithium relative to that containing the two 1,2-dimethoxyethane oxygens and the lithium. The five-membered chelate ring formed by chelation of the 1,2-dimethoxyethane to the lithium is a twist envelope consistent with the twofold rotation axis passing through the lithium and the center of the carbon-carbon bond of the 1,2-dimethoxyethane. Hydrogen bonding between each water hydrogen and a phenyl group of the tetraphenylborate is observed and results in a linear polymeric structure. [References: 9]
机译：二苯基硼酸二（1,2-二甲氧基乙烷）锂[Li（CH3OCH2-CH2OCH3）（H2O）（2）] [BPh4]的结构已在293 K下确定。该化合物在三方P3（1）21中结晶空间组（a = b = 9.9760（14），c = 23.662（5））。锂和硼都位于双重旋转轴上。锂与1,2-二甲氧基乙烷基团的两个水氧和两个醚氧配位。通过使包含两个水氧和锂的平面相对于包含两个1,2-二甲氧基乙烷氧和锂的平面扭转，配位几何形状从四面体明显变形。通过1，2-二甲氧基乙烷与锂的螯合形成的五元螯合环是与穿过锂的双倍旋转轴和1，2-二甲氧基乙烷的碳-碳键的中心一致的扭曲包络线。观察到每个水氢与四苯基硼酸酯的苯基之间的氢键键合，并形成线性聚合物结构。 [参考：9]

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