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首页> 外文期刊>Crystal growth & design >Assembly of 6(3),6(6)-pillared metal-organic bilayers and diamondoid lattices using molecular Li2O2 ring dimers as secondary building units
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Assembly of 6(3),6(6)-pillared metal-organic bilayers and diamondoid lattices using molecular Li2O2 ring dimers as secondary building units

机译:使用分子Li2O2环二聚体作为二级构建单元组装6(3),6(6)桩状金属有机双层和类金刚石晶格

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摘要

The lithium aryloxide [4-Br-2,6-Me2C6H2OLi] forms solvated molecular Li2O2 ring dimers in both 1,4-dioxane and 1,3-dioxolane solutions, as determined by NMR spectroscopic and cryoscopic studies. In turn, the geometry of these aggregates controls the architectures of the resulting extended networks upon crystallization from these solvent systems. Specifically, the tetrasolvated dimers act as novel tetrahedral or trigonal nodes to produce the unprecedented 6(3),6(6) pillared bilayer polymer [{(ArOLi)(2)center dot(mu-diox)(2)}center dot{(ArOLi)(2)-(diox)center dot(mu-diox)(1.5)}](infinity) (2) and the three-dimensional dianiondoid framework [(ArOLi)(2)center dot(mu-dioxol)(2)](infinity) (3). The structure of 2 is particularly noteworthy, being composed of two fused hexagonal sheets to form an interrupted diamondoid net.
机译:根据NMR光谱和低温研究确定,芳氧基锂[4-Br-2,6-Me2C6H2OLi]在1,4-二恶烷和1,3-二恶戊烷溶液中形成溶剂化的分子式Li2O2环二聚体。反过来,这些聚集体的几何形状控制了从这些溶剂系统中结晶出来的所得扩展网络的结构。具体而言,四溶剂化的二聚体充当新型四面体或三角节点,以产生前所未有的6(3),6(6)柱状双层聚合物[{(ArOLi)(2)center dot(mu-diox)(2)} center dot { (ArOLi)(2)-(diox)中心点(mu-diox)(1.5)}] [无穷大)(2)和三维二阴离子体系[[ArOLi)(2)中心点(mu-dioxol)( 2)](无限)(3)。 2的结构特别值得注意,它由两个熔融的六角形薄片组成,形成不连续的菱形网。

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