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Synthesis and Crystal Structure of a New Supramolecular Compound Constructed from Flexible 1,1'-(1,4-Butanediyl)bis(imidazole)and 1,2,4,5-Benzenetetracarboxylic Acid |
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| Authors: | JIANG Kai MEI Xue-Lan LI Yan-Ge YAO Jing-Cai |
| Institution: | 1. College of Chemistry and Environmental Science,Henan Normal University,Xinxiang,Henan 453007,China 2. College of Chemistry and Environmental Science,Henan Normal University,Xinxiang,Henan 453007,China;College of Chemistry and Chemical Engineering,Luoyang Normal University,Luoyang 471022,China 3. College of Chemistry and Chemical Engineering,Luoyang Normal University,Luoyang 471022,Chinazte |
| Abstract: | A new bis(imidazolium)compound,H_2L(H_2btec)_2]·H4btec(1,L=1,1'-(butane1,4-diyl)bis(imidazole),H4btec=1,2,4,5-benzenetetracarboxylatie acid),has been synthesized and structurally characterized by single-crystal X-ray diffraction.The title compound crystallizes in the monoclinic system,space group Pnma,with a=13.3908(11),b=13.9249(12),c=16.2166(14)A,V=2957.6(4)A~3,Z=4,M_r=698.55,D_c=1.569 mg/m~3,F(000)=1448,μ(MoKa)=0.130 mm~(-1),the final R=0.0584 and wR=0.1538 for 4295 observed reflections with 1＞2σ(I).The compound consists of one 1,1'-(butane~(-1),4-diyl)bis(imidazolium)cation,one neutral H4btec and one H2btec2-(Only two para carboxyl groups are deprotonated,and two protonated ones remain free)anion.A one-dimensional hydrogen bonding chain and a 2D hydrogen bonding network are formed via through intermolecular π-π and hydrogen bonding interactions to form a 3D supramolecular network. |
| Keywords: | synthesis crystal structure supramolecular networks |
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