title: 4-({[(E)-Pyridin-3-yl-methyl-idene]amino}-meth-yl)cyclo-hexa-necarb-oxy-lic acid.
abstract: The title compound, C(14)H(18)N(2)O(2), contains two geometrically different mol-ecules in the asymmetric unit: the basal plane of the cyclo-hexane chair and the N-[pyridin-3-yl-methyl-idene]methanamine moiety are oriented at dihedral angles of 71.77 (7)° and 83.42 (8)°. In the crystal, the mol-ecules are linked by O-H⋯N hydrogen bonds, generating C(13) head-to-tail chains extending along the base vector [103]. R(2) (2)(26) ring motifs are formed due to the C-H⋯·O inter-actions that link neighbouring chains. There also exist π-π inter-actions [centroid-centroid separation = 3.6925 (12) Å] between the symmetry-related pyridine rings of one of the independent mol-ecules.
authors.forename: Muhammad
authors.initials: M
authors.lastname: Nisar
authors.forename: Ihsan
authors.initials: I
authors.lastname: Ali
authors.forename: M Nawaz
authors.initials: MN
authors.lastname: Tahir
authors.forename: Mughal
authors.initials: M
authors.lastname: Qayum
authors.forename: Inamullah Khan
authors.initials: IK
authors.lastname: Marwat