title: Tris[2-(2-pyridylimino-meth-yl)phenol-ato(0.67-)]europium(III) nitrate.
abstract: The title compound, [Eu(C(12)H(9.33)N(2)O)(3)]NO(3), was obtained by the reaction of Eu(NO(3))·3H(2)O and the Schiff base ligand 2-(2-pyridylimino-meth-yl)phenol. The Eu atom is located on a threefold rotation axis and is nine-coordinated by three tridentate Schiff base ligands in a distorted tricapped trigonal-prismatic geometry. The O atom at the phenol hydr-oxy group is partially deprotonated and the H atoms are modelled with one-third occupancy according to the space group R. Offset face-to-face π-π [centroid-centroid distance = 3.886 (3) Å] and edge-to-face C-H⋯π inter-actions are found between adjacent mol-ecules. An intra-molecular O-H⋯N hydrogen bond is also present.
authors.affiliation: School of Chemical Science and Technology, Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education, Yunnan University, Kunming 650091, People's Republic of China.
authors.forename: Qi-Hua
authors.initials: QH
authors.lastname: Zhao
authors.forename: Hong-Yan
authors.initials: HY
authors.lastname: Chen
authors.forename: Li-Nan
authors.initials: LN
authors.lastname: Li
authors.forename: Ming-Jin
authors.initials: MJ
authors.lastname: Xie