title: 4,4'-Dimeth-oxy-2,2'-[(butane-1,4-diyldi-oxy)bis-(nitrilo-methyl-idyne)]diphenol.
abstract: The title Schiff base bis-oxime compound, C(20)H(24)N(2)O(6), lies across an inversion centre and adopts an E configuration with respect to the C=N bond. In the mol-ecule, the oxime group is roughly coplanar with the benzene ring, forming a dihedral angle of 1.77 (2)°. An intra-molecular O-H⋯N hydrogen bond forms a six-membered ring with an S(6) motif. Weak inter-molecular C-H⋯O hydrogen bonding is present in the crystal structure.
authors: School of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou 730070, People's Republic of China.
authors: Yin-Xia
authors: YX
authors: Sun
authors: Xiu-Yan
authors: XY
authors: Dong
authors: Hu
authors: H
authors: Zhao
references: Inorg Chem. 2005 Mar 7;44(5):1208-10
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references: Acta Crystallogr A. 2008 Jan;64(Pt 1):112-22
references: 18156677