title: (E,E)-1,2-Bis[3-meth-oxy-4-(prop-2-yn-1-yl-oxy)benzyl-idene]hydrazine.
abstract: The complete mol-ecule in the title compound, C(22)H(20)N(2)O(4), is generated by the application of an inversion centre. With the exception of the terminal acetyl-ene groups [C-O-C-C = -78.02 (17)°], the remaining atoms constituting the mol-ecule are essentially coplanar. The configuration around the C=N bond [1.282 (2) Å] is E. The formation of supra-molecular chains mediated by C-H⋯O inter-actions, occurring between methyl-ene H and meth-oxy O atoms, is the most notable feature of the crystal packing.
authors.affiliation: Department of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia.
authors.forename: Wisam Naji Atiyah
authors.initials: WN
authors.lastname: Al-Mehana
authors.forename: Raied M
authors.initials: RM
authors.lastname: Shakir
authors.forename: Rosiyah
authors.initials: R
authors.lastname: Yahya
authors.forename: Siti Nadiah
authors.initials: SN
authors.lastname: Abd Halim
authors.forename: Edward R T
authors.initials: ER
authors.lastname: Tiekink