title: A novel La(III)-based metal-organic framework (MOF) with a new topology: poly[diaquabis(μ5-2,5-dioxopiperazine-1,4-diacetato)(μ2-oxalato)dilanthanum(III)].
abstract: In the title metal-organic framework (MOF), [La(C(8)H(8)N(2)O(6))(C(2)O(4))(0.5)(H(2)O)](n), the La(III) cation is coordinated by eight O atoms in a square antiprismatic configuration. Each La(III) cation is connected to adjacent La(III) cations by bridging 2,5-dioxopiperazine-1,4-diacetate (PODC(2-)) and oxalate (lying about an inversion centre) ligands, generating two-dimensional grid layers. The layers are further linked via the carboxylate groups of the PODC(2-) ligands in syn-syn and syn-anti modes, resulting in a three-dimensional framework with a short Schläfli vertex notation of {4(7).6(3)}{4(7).6(7).8}.
authors.affiliation: College of Chemical Engineering and Materials Science, Zhejiang University of Technology, Hangzhou 310014, Zhejiang, People's Republic of China.
authors.forename: Wen-Xian
authors.initials: WX
authors.lastname: Chen
authors.forename: Qiu-Ping
authors.initials: QP
authors.lastname: Liu
authors.forename: Gui-Lin
authors.initials: GL
authors.lastname: Zhuang
authors.forename: Sheng-Jun
authors.initials: SJ
authors.lastname: Zhou