(E)-N′-(4-Nitrobenzylidene)-4-(8-quinolyloxy)butanohydrazide

Abstract

In the title compound, C20H18N4O4, conformation along the bond sequence linking the benzene and quinoline rings, which have a mean inter­planar dihedral angle of 2.7 (5)°, is trans–(+)gauche–trans–trans–(−)gauche–trans–trans. In the crystal structure, a pair of inter­molecular N—H⋯O hydrogen bonds links the mol­ecules into centrosymmetric cyclic R 2 2(8) dimers, which are aggregated via π–π inter­actions into parallel sheets [quinoline–benzene ring centroid separation = 3.6173 (16)–3.6511 (16) Å]. The sheets are further connected through weak C—H⋯O inter­actions, giving a supra­molecular two-dimensional network.

(E)-N′-(3-Nitrobenzylidene)-4-(8-quinolyloxy)butanohydrazide

“…For a closely related isomeric structure and background references, see: XiaHou et al (2010). For further synthetic details, see: Zheng et al (2006).…”

Synthesis, Characterization, Crystal Structure, and Fluorescence Properties of a Schiff Base Containing Aliphatic Spacers

“…[11][12][13][14] Structures of Schiff bases derived from substituted 2-(quinolin-8-yloxy)butanehydrazide and closely related to the title compound have been reported earlier. [15][16][17][18] In this contribution, we present the synthesis, characterization, crystal structure, and fluorescence property of a new Schiff base, 1, which contains oxygen and nitrogen donors and flexible aliphatic spacers.…”