期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
A 2D Wavy Parquet Architecture Based on the Biphenyl-3,3',4,4'-tetracarboxylic Acid and Bis(2-benzimidazole)alkanes Ligands 被引量:5
1
作者 冯国栋 姜娈 +4 位作者 陈强 杨得锁 王敏娟 李宗孝 罗小林 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2013年第1期45-50,共6页
A double-T-shaped ligand (H4BPTC) and bis(2-benzimidazole)alkanes as the spacers have been firstly used to direct the assembly of a 2D coordination polymer with wavy parquet network topology, [Zn(BPTC)0.5(H2C2... A double-T-shaped ligand (H4BPTC) and bis(2-benzimidazole)alkanes as the spacers have been firstly used to direct the assembly of a 2D coordination polymer with wavy parquet network topology, [Zn(BPTC)0.5(H2C2EIm)(H2O)]n (1, C24H18ZnN4O5, Mr = 507.79, H4BPTC = biphenyl-3,3',4,4'-tetracarboxylic acid, H2C2EIm = 2,2'-(1,2-ethanediyl)-bis(1H-benzi- midazole), which was determined by single-crystal X-ray diffraction analysis. The crystal belongs to the monoclinic system, space group P21/n with a = 1.1844(5), b = 1.4019(5), c = 1.4026(5) nm, β = 108.359(5)°, V = 2.2104(15) nm3, Z = 4, Dc = 1.526 g/cm3, μ(MoKα) = 1.156 mm-1, F(000) = 1040, S = 1.038, the final R = 0.0427 and wR = 0.0793 for 3834 reflections with I 2σ(I). The compound units are linked through BPTC ligands into a wavilness parquet 2D layer and further connected into a 3D framework via π-π packing interactions between the adjacent H2C2EIm ligands and weak N-H…O hydrogen bonding between uncoordinated carboxylate and the nitrogen atoms of H2C2EIm as well as the free water molecules. 展开更多
关键词 synthesis crystal structure zincii bis(2-benzimidazoles) double-T-shaped ligand
下载PDF
[Zn(bim)2]·(H2O)1.67:A metal-organic open-framework with sodalite topology 被引量:8
2
作者 HUANGXiaochun ZHANGJiepeng CHENXiaoming 《Chinese Science Bulletin》 SCIE EI CAS 2003年第15期1531-1534,共4页
The new coordination polymer formulated as [Zn(bim)2]?H2O)1.67 (Hbim = benzimidazole, bim = benzimidazolate) has been synthesized and shown by single-crystal structural analysis to be a three-dimensional network with ... The new coordination polymer formulated as [Zn(bim)2]?H2O)1.67 (Hbim = benzimidazole, bim = benzimidazolate) has been synthesized and shown by single-crystal structural analysis to be a three-dimensional network with the 4264 sodalite topology, constructed by tetrahedral building blocks, [Zn(bim)4]2-. Each sodalite cage defined by the 24 zinc atoms at the apexes centers hosts 10 water molecules (ca. 18% occupancy). 展开更多
关键词 方钠石 拓扑结构 苯并咪唑
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部