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首页> 外文期刊>Asian Journal of Chemistry: An International Quarterly Research Journal of Chemistry >Hydrogen Bonding and Water Networks in a 3-D Coordination Polymer [Ag(bpp)]_2(BDC)·8H2O (bpp = 1,3-Bis(4-pyridyl)propane; BDC - Benzene-1,4-dicarboxylic acid)
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Hydrogen Bonding and Water Networks in a 3-D Coordination Polymer [Ag(bpp)]_2(BDC)·8H2O (bpp = 1,3-Bis(4-pyridyl)propane; BDC - Benzene-1,4-dicarboxylic acid)

机译：3-D配位聚合物[Ag（bpp）] _ 2（BDC）·8H2O（bpp = 1,3-双（4-吡啶基）丙烷; BDC-苯-1,4-二羧酸）中的氢键和水网络

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摘要

A 3-D coordination polymer of silver, i.e., [Ag(bpp)]_2(BDC)·8H2O was obtained by evaporating the mixture of an ammonical solution containing AgNO3, benzene-1,4-dicarboxylatic acid and an acetonic solution of 1,3-bis(4-pyridyl)propane at room temperature slowly for several weeks. The crystals should be protected by vaseline oil as soon as possible after taken from mother liquid because they were unstable when exposed under air. In asymmetric unit of [ Ag(bpp)]_2(BDC)·8H2O, the Ag ions are coordinated in bent linear geometry by two N atoms from two different 1,3-bis(4-pyridyl)propane ligands. Benzene-1,4-dicarboxylic acid is uncoordinated to any Ag ions, playing the role of charge compensation of the cationic polymer coordination chains. The rich hydrogen bond interactions were formed by the O atoms from benzene-1,4-dicarboxylie acid ligands and the lattice water molecules, which form novel water networks. The crystal structure reveals that 3-D framework of [Ag(bpp)]_2(BDC)·8H2O is built up of 1-D [Ag(bpp)]_n~(n+), BDC~(2-) counter-ions and lattice water molecules.
机译：通过蒸发包含AgNO3、1,4-苯二甲酸苯和1的丙酮溶液的铵溶液的混合物，获得银的3-D配位聚合物，即[Ag（bpp）] _ 2（BDC）·8H2O。 ，3-双（4-吡啶基）丙烷在室温下缓慢反应数周。从母液中取出晶体后，应尽快用凡士林油保护，因为它们在空气中暴露时不稳定。在[Ag（bpp）] _ 2（BDC）·8H2O的不对称单元中，Ag离子通过来自两个不同的1,3-双（4-吡啶基）丙烷配体的两个N原子以弯曲的线性几何结构进行配位。苯-1,4-二羧酸不与任何Ag离子配位，起阳离子聚合物配位链电荷补偿的作用。富氢键相互作用是由苯-1,4-二羧酸配位体的O原子和晶格水分子形成的，形成了新颖的水网络。晶体结构表明[Ag（bpp）] _ 2（BDC）·8H2O的3-D骨架由1-D [Ag（bpp）] _ n〜（n +），BDC〜（2-）抗衡离子组成。和晶格水分子。

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