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首页> 外文期刊>Crystal growth & design >Novel series of ribbon structures in dialkylammonium chlorocadmates obtained by dimensional reduction of the hexagonal CdCl2 lattice
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Novel series of ribbon structures in dialkylammonium chlorocadmates obtained by dimensional reduction of the hexagonal CdCl2 lattice

机译：通过六边形CdCl2晶格的尺寸还原获得的二烷基氯甲酸铵中的新型带状结构

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摘要

Small dialkylammonium cations (DMA(+) = dimethylammonium, DEA(+) = diethylammonium, and DPA(+) = dipropylammonium) were used as molecular "scissors" to obtain ribbon structures based on edge-sharing octahedra derived from the parent hexagonal CdCl2 lattice. Retro-crystal engineering concepts were used to analyze and interpret the observed structures. The chloride salts all contain coordinated solvent molecules that stabilize the ribbon structures through O-H center dot center dot center dot Cl hydrogen bonds. The simplest of these, the alpha and beta polymorphs of [DEA][Cd2Cl5(H2O)], are made up of double chains of edge-shared octahedra with stoichiometry [Cd2Cl5(H2O)(-)](infinity). The more complex ribbon structures found in [DMA][Cd2Cl5(H2O)]-H2O, [DPA](2)[Cd5Cl12(H2O)(2)]center dot H2O, and [DPA](2)[Cd3Cl8(CH3OH)]center dot H2O are made up of [Cd4Cl10(H2O)(2)(2-)](infinity), [Cd5Cl12(H2O)(2)(2-)](infinity), and [Cd6Cl16(CH3OH)(2)(2-)](infinity) moieties, each with its own distinctive packing characteristics. A wide selection of hydrogen bonding plays a crucial role in the three-dimensional stability of this unique family of structures.
机译：使用小的二烷基铵阳离子（DMA（+）=二甲基铵，DEA（+）=二乙基铵，DPA（+）=二丙基铵）作为分子“剪刀”，以基于基于母体六角形CdCl2晶格的边共享八面体获得带状结构。逆向晶体工程概念被用来分析和解释观察到的结构。氯化物盐均包含通过O-H中心点中心点中心点C1氢键稳定带结构的配位溶剂分子。其中最简单的是[DEA] [Cd2Cl5（H2O）]的α和β多晶型物，由化学计量为[Cd2Cl5（H2O）（-）]（无穷大）的边缘共享八面体的双链组成。在[DMA] [Cd2Cl5（H2O）]-H2O，[DPA]（2）[Cd5Cl12（H2O）（2）]中心点H2O和[DPA]（2）[Cd3Cl8（CH3OH）]中发现的更复杂的带状结构]中心点H2O由[Cd4Cl10（H2O）（2）（2-）]（无穷大），[Cd5Cl12（H2O）（2）（2-）]（无穷大）和[Cd6Cl16（CH3OH）（2 ）（2-）]（无限）部分，每个部分都有其独特的包装特征。氢键的广泛选择在这种独特的结构家族的三维稳定性中起着至关重要的作用。

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