title: (E)-1-Ethyl-4-oxo-N'-(4-pyridylmethyl-ene)-1,4-dihydroquinoline-3-carbo-hydrazide.
abstract: In the title compound, C(18)H(16)N(4)O(2), the plane defined by the ethyl C atoms and the attached N atom is inclined to the adjacent pyridine ring at an angle of 67.87 (16)°. The dihedral angle between the two heterocyclic rings is 3.33 (16)°. The mol-ecular conformation is stabilized by an intra-molecular N-H⋯O hydrogen bond and the crystal structure by inter-molecular C-H⋯O hydrogen bonds, forming a one-dimensional structure.
authors.forename: Fernanda
authors.initials: F
authors.lastname: da C Santos
authors.forename: Pedro Netto
authors.initials: PN
authors.lastname: Batalha
authors.forename: Anna Claudia
authors.initials: AC
authors.lastname: Cunha
authors.forename: Rafael A
authors.initials: RA
authors.lastname: Alão
authors.forename: Vitor Francisco
authors.initials: VF
authors.lastname: Ferreira
authors.forename: Maria Cecilia B V
authors.initials: MC
authors.lastname: de Souza
authors.forename: Sauli
authors.initials: S
authors.lastname: Santos