title: 5,5'-Dimeth-oxy-2,2'-[(nonane-1,9-diyldi-oxy)bis-(nitrilo-methyl-idyne)]diphenol.
abstract: The mol-ecule of the title compound, C(25)H(34)N(2)O(6), adopts a fully extended configuration. The oxime (-CH=N-O-) group is coplanar with the aromatic ring and the two benzene rings are almost parallel, making a dihedral angle of 0.16 (3)°. In the crystal structure, strong intra-molecular O-H⋯N hydrogen bonds generate six-membered S(6) ring motifs. Inter-molecular C-H⋯O hydrogen bonds link each mol-ecule to five others, forming an infinite three-dimensional supra-molecular structure. The crystal is further stabilized by π-π stacking inter-actions between neighbouring benzene rings [centroid-centroid distance = 3.744 (2) Å].
authors.forename: Li
authors.initials: L
authors.lastname: Li
authors.forename: Hong-Zheng
authors.initials: HZ
authors.lastname: Ma
authors.forename: Su-Xia
authors.initials: SX
authors.lastname: Gao
authors.forename: Wen-Kui
authors.initials: WK
authors.lastname: Dong
authors.forename: Jian-Chao
authors.initials: JC
authors.lastname: Wu