title: 1-[(Z)-(5-Methyl-2-pyrid-yl)iminiometh-yl]-2-naphtholate.
abstract: In the zwitterionic title compound, C(17)H(14)N(2)O, the dihedral angle between the naphthalene and pyridine ring systems is 3.56 (9)° and an intra-molecular N-H⋯O hydrogen bond generates an S(6) ring. In the crystal, mol-ecules are linked by C-H⋯O inter-actions.
authors.affiliation: Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao, Shandong 266100, People's Republic of China.
authors.forename: Xin-Yu
authors.initials: XY
authors.lastname: Liu
authors.forename: Yu-Hua
authors.initials: YH
authors.lastname: Fan
authors.forename: Qiang
authors.initials: Q
authors.lastname: Wang
authors.forename: Cai-Feng
authors.initials: CF
authors.lastname: Bi
authors.forename: Yu-Fang
authors.initials: YF
authors.lastname: Wang