title: Poly[[diaqua-hemi-μ(4)-oxalato-μ(2)-oxalato-praseodymium(III)] monohydrate].
abstract: In the title complex, {[Pr(C(2)O(4))(1.5)(H(2)O)(2)]·H(2)O}(n), the Pr(III) ion, which lies on a crystallographic inversion centre, is coordinated by seven O atoms from four oxalate ligands and two O atoms from two water ligands; further Pr-O coordination from tetra-dentate oxalate ligands forms a three-dimensional structure. The compound crystallized as a monohydrate, the water mol-ecule occupying space in small voids and being secured by O-H⋯O hydrogen bonding as an acceptor from ligand water H atoms and as a donor to oxalate O-acceptor sites.
authors.affiliation: High-Tech Institute of Nangjing University, Changzhou 213164, People's Republic of China.
authors.forename: Ting-Hai
authors.initials: TH
authors.lastname: Yang
authors.forename: Qiang
authors.initials: Q
authors.lastname: Chen
authors.forename: Wei
authors.initials: W
authors.lastname: Zhuang
authors.forename: Zhe
authors.initials: Z
authors.lastname: Wang
authors.forename: Bang-Yi
authors.initials: BY
authors.lastname: Yue