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首页> 外文期刊>Crystal growth & design >Solvothermal Synthesis and Structural Characterization of Ultralight Metal Coordination Networks
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Solvothermal Synthesis and Structural Characterization of Ultralight Metal Coordination Networks

机译：溶剂热合成和超轻金属配位网络的结构表征

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Two lithium-based coordination polymers and a framework Li-3(C7H3O4N)(2)center dot 0.21(H2O) (C2H8N) [1]; ULCP-1 (ULCP = ultralight coordination polymer); Li-3(C7H3O4N)center dot(C6H3O2N) [2]; [ULCP-1A]; and Li-2(C7H3O4N) [3]; ULMOF-4 (ULMOF = ultralight metal organic framework) were synthesized using solvothermal techniques. The compounds were characterized using single-cry tal X-ray diffraction methods and thermal analysis techniques. Compound [1] [space group P2(1)/c, a = 11.51(2) angstrom, b = 15.33(3) angstrom, c = 10.93(2) angstrom, beta = 99.98(3)degrees] consists of trimeric corner- and edge-sharing lithium tetrahedral chains. Organic linkers connect each of these chains to form a two-dimensional (2-D) layered structure. Positively charged dimethyl amine (DMA) molecules and sites partially occupied by water molecules are present between the layers. Compound [2] [space group P2(1)/c, a = 10. 190(2) angstrom, b = 13.390(3) angstrom, c = 10.450(2) angstrom, beta = 106.02(3)degrees] contains trimeric clusters of corner- and edge-sharing lithium tetrahedra. Each of these clusters is connected by the organic linkers to form an overall 2-D structure. Compound [3] [space group C2/c, a = 12.692(2) angstrom, b = 10.977(2) angstrom, c = 11.200(2) angstrom, beta = 105.83(3)degrees] consists of edge- and corner shared one-dimensional (1-D) chains of lithium tetrahedra. The lithium polyhedral chains are then connected by the organic linkers to form a dense three-dimensional (3-D) network. All compounds are stable above 300 degrees C under N-2 atmosphere, with [3] stable to 550 degrees C.
机译：两种锂基配位聚合物和骨架Li-3（C7H3O4N）（2）中心点0.21（H2O）（C2H8N）[1]; ULCP-1（ULCP =超轻配位聚合物）; Li-3（C7H3O4N）中心点（C6H3O2N）[2]; [ULCP-1A];和Li-2（C7H3O4N）[3];使用溶剂热技术合成了ULMOF-4（ULMOF =超轻金属有机骨架）。使用单晶X射线衍射法和热分析技术对化合物进行表征。化合物[1] [空间群P2（1）/ c，a = 11.51（2）埃，b = 15.33（3）埃，c = 10.93（2）埃，β= 99.98（3）度]由三聚体角组成-和边缘共享的锂四面体链。有机接头连接这些链中的每一个，以形成二维（2-D）分层结构。在层之间存在带正电的二甲胺（DMA）分子和被水分子部分占据的位点。化合物[2] [空间组P2（1）/ c，a =10。190（2）埃，b = 13.390（3）埃，c = 10.450（2）埃，β= 106.02（3）度]包含三聚体角和边共享的四面体锂簇。这些簇中的每一个通过有机接头连接以形成整体2-D结构。化合物[3] [空间组C2 / c，a = 12.692（2）埃，b = 10.977（2）埃，c = 11.200（2）埃，β= 105.83（3）度]由共享的边角组成四面体锂的一维（1-D）链。然后，锂多面体链通过有机连接子连接以形成致密的三维（3-D）网络。所有化合物在N-2气氛下在300摄氏度以上均稳定，[3]稳定在550摄氏度。

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