title: Quinoline-2-carbonitrile-fumaric acid (1/0.5).
abstract: The asymmetric unit of the title compound, C(10)H(6)N(2)·0.5C(4)H(4)O(4), consists of one quinoline-2-carbonitrile mol-ecule and a half-mol-ecule of fumaric acid, which lies on an inversion center. The quinoline-2-carbonitrile mol-ecule is almost planar, with an r.m.s. deviation of 0.008 (1) Å. The acid and base are linked together via pairs of inter-molecular C-H⋯O and O-H⋯N hydrogen bonds, forming R(2) (2)(8) ring motifs. In the crystal, the carbonitrile mol-ecules are further linked by inter-molecular C-H⋯N hydrogen bonds, generating R(2) (2)(10) ring motifs, resulting in zigzag chains running along the c axis.
authors: X-ray Crystallography Unit, School of Physics, Universiti Sains Malaysia, 11800 USM, Penang, Malaysia.
authors: Wan-Sin
authors: WS
authors: Loh
authors: Ching Kheng
authors: CK
authors: Quah
authors: Madhukar
authors: M
authors: Hemamalini
authors: Hoong-Kun
authors: HK
authors: Fun
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