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4,4'-{[1,2-Phenyl-enebis(methyl-ene)]bis-(-oxy)}di-benzoic acid di-methyl-formamide disolvate
Zhen-Zhe Qiu1, Bi Jing1, Qiu-Xia Li1
1Faculty of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming 650050, People's Republic of China.
Abstract:
In the title solvate, C22H18O6·2C3H7NO, the complete dicarboxylic acid molecule is generated by a crystallographic twofold axis, which bisects the central benzene ring and one N,N-di-methyl-formamide solvent mol-ecule. The dihedral angle between the central and pendant benzene rings is 54.53 (5)° while that between the pendant rings is 45.44 (5)°. In the crystal, the acid molecules are linked to the solvent molecules via O-H⋯O and weak C-H⋯O hydrogen bonds. Further weak C-H⋯O inter-actions link adjacent acid mol-ecules into a three-dimensional network.
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