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首页> 外文期刊>Zeitschrift fur Anorganische und Allgemeine Chemie >Synthesis, structure, and properties of a new calcium(II) complex of 1,10-Phenanthroline, 1,2,4,5-benzenetetracarboxylic acid, and a new precursor to produce pure phase micro-crystalline calcite particles
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Synthesis, structure, and properties of a new calcium(II) complex of 1,10-Phenanthroline, 1,2,4,5-benzenetetracarboxylic acid, and a new precursor to produce pure phase micro-crystalline calcite particles

机译:1,10-菲咯啉,1,2,4,5-苯四甲酸的新型钙(II)配合物和制备纯相微晶方解石颗粒的新前体的合成,结构和性质

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摘要

The self-assembly of 1, 0-phenanthroline (phen) and 1,2,4,5- benzenetetracarboxylic acid(H_4btc) with Ca(NO_3) _2 gives rise to a two-dimensional network structure coordination polymer, [Ca(phen)(btc)_(0.5)(H_2O)] (1), which was characterized by elemental analysis, IR spectroscopy, and single-crystal X-ray diffraction. This compound is monoclinic, space group C2/c, with Z = 8 in a unit cell with dimensions a = 21.744(3) ?, b = 10.0151(12) ?, c = 14.7122(17) ?, β = 110.2850(10)°. The structure contains one crystallographic unique Ca~(II) atom, one phen coordinated molecule and a half of btc~(4-) anion. The phen molecule acts as a didentate ligand chelating with a CaII atom, whereas the btc4- anion acts as a μ_6-bridge linking six different Ca~(II) atoms to form a two-dimensional network with (4, 4) topological structure. The three dimensional stacking structures are formed by C-H-O hydrogen bonding and π-π interaction. The thermal stability and fluorescent properties of 1 were investigated. Calcite particles are produced by calcination of compound 1 at 580 °C. The obtained calcite was characterized by XRD and SEM analyses.
机译:1,0-菲咯啉(phen)和1,2,4,5-苯四甲酸(H_4btc)与Ca(NO_3)_2的自组装产生二维网络结构配位聚合物[Ca(phen) (btc)_(0.5)(H_2O)](1)的特征在于元素分析,红外光谱和单晶X射线衍射。该化合物为单斜晶,空间群C2 / c,在单元格中Z = 8,尺寸为a = 21.744(3)α,b = 10.0151(12)α,c = 14.7122(17)α,β= 110.2850(10 )°。该结构包含一个晶体学独特的Ca〜(II)原子,一个phen配位分子和一半的btc〜(4-)阴离子。 phen分子充当与CaII原子螯合的二齿配体,而btc4-阴离子充当连接六个不同Ca〜(II)原子以形成具有(4,4)拓扑结构的二维网络的μ-6桥。三维堆叠结构是通过C-H-O氢键和π-π相互作用形成的。研究了1的热稳定性和荧光性质。方解石颗粒是通过在580°C下煅烧化合物1产生的。通过XRD和SEM分析对获得的方解石进行表征。

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