title: 4,4'-Bipyridine-cyclo-hexane-1,2,4,5-tetra-carb-oxy-lic acid (1/1).
abstract: In the title 1:1 adduct, C(10)H(8)N(2)·C(10)H(12)O(8), the dihedral angle between the pyridine rings in the 4,4-bipyridine molecule is 8.33 (13)°. In the crystal, the cyclo-hexane-1,2,4,5-tetra-carb-oxy-lic acid mol-ecules inter-act with each other through inter-molecular O-H⋯O hydrogen bonds, forming an infinite chain along the a axis, which is further linked perpendicularly by O-H⋯N hydrogen bonds involving bipyridine, resulting in a supra-molecular corrugated sheet parallel to the (110) plane.
authors: Guangdong Medical College, School of Pharmacy, Dongguan 523808, People's Republic of China.
authors: Jian-Qiang
authors: JQ
authors: Liu
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