title: 5-(Pyridin-4-yl)isophthalic acid.
abstract: In the title compound, C(13)H(9)NO(4), the two carb-oxy-lic groups and the benzene ring are approximately co-planar with a maximum atomic deviation 0.175 (4) Å, while the pyridine ring is oriented at a dihedral angle of 31.07 (18)° with respect to the benzene ring. In the crystal, mol-ecules are linked by O-H⋯O, O-H⋯N and weak C-H⋯O hydrogen bonds, forming a three-dimensional supra-molecular framework.
authors: College of Chemistry and Chemical Engineering, Liaocheng University, Shandong 252059, People's Republic of China.
authors: Yong-Fang
authors: YF
authors: Zhang
authors: Qing-Fu
authors: QF
authors: Zhang
authors: Juan
authors: J
authors: Jin
authors: De-Zhi
authors: DZ
authors: Sun
authors: Da-Qi
authors: DQ
authors: Wang
references: Acta Crystallogr A. 2008 Jan;64(Pt 1):112-22
references: 18156677