title: (Butane-1,2,3,4-tetraol-κ(3) O (1),O (2),O (3))(ethanol-κO)tris-(nitrato-κ(2) O,O')erbium(III).
abstract: In the title Er(III)-erythritol complex, [Er(NO3)3(C2H5OH)(C4H10O4)], the Er(III) cation is chelated by one erythritol mol-ecule, three nitrate anions and an ethanol mol-ecule, completing an irregular ErO10 coordination geometry. The Er-O bond lengths are in the range 2.348 (3)-2.583 (3) Å. In the crystal, extensive O-H⋯O hydrogen bonding links the mol-ecules into a three-dimensional supra-molecular structure.
authors.affiliation: Beijing National Laboratory for Molecular Sciences, The State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing, People's Republic of China.
authors.forename: Xiao-Hui
authors.initials: XH
authors.lastname: Hua
authors.forename: Jun-Hui
authors.initials: JH
authors.lastname: Xue
authors.forename: Li-Min
authors.initials: LM
authors.lastname: Yang
authors.forename: Yi-Zhuang
authors.initials: YZ
authors.lastname: Xu
authors.forename: Jin-Guang
authors.initials: JG
authors.lastname: Wu