title: 2,2'-[1,1'-(Ethyl-enedioxy-dinitrilo)diethyl-idyne]di-1-naphthol.
abstract: The complete molecule of the title compound, C(26)H(24)N(2)O(4), is generated by a crystallographic centre of inversion. There are two intra-molecular O-H⋯N hydrogen bonds. In the crystal structure, inter-molecular C-H⋯O hydrogen bonds result in zigzag chains.
authors.affiliation: School of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou 730070, People's Republic of China.
authors.forename: Wen-Kui
authors.initials: WK
authors.lastname: Dong
authors.forename: Jian-Chao
authors.initials: JC
authors.lastname: Wu
authors.forename: Jian
authors.initials: J
authors.lastname: Yao
authors.forename: Li
authors.initials: L
authors.lastname: Li
authors.forename: Shang-Sheng
authors.initials: SS
authors.lastname: Gong