title: Three novel lanthanide metal-organic frameworks (Ln-MOFs) constructed by unsymmetrical aromatic dicarboxylatic tectonics: synthesis, crystal structures and luminescent properties.
abstract: Three novel Ln(III)-based coordination polymers, {[Ln2 (2,4-bpda)3 (H2O)x]·yH2O}n (Ln = La (III) (1), x = 2, y = 0, Ce (III) (2), Pr (III) (3), x = 4, y = 1) (2,4-H2bpda = benzophenone-2,4-dicarboxylic acid) have been prepared via a solvothermal method and characterized by elemental analysis, IR, and single-crystal X-ray diffraction techniques. Complex 1 exhibits a 3D complicated framework with a new 2-nodal (3,7)-connected (42·5) (44·51·66·8) topology. Complexes 2 and 3 are isomorphous, and feature a 3D 4-connected (65·8)-CdSO4 network. Moreover, solid-state properties such as thermal stabilities and luminescent properties of 1 and 2 were also investigated. Complex 1 crystallized in a monoclinic space group P21/c with a = 14.800 (3), b = 14.500 (3), c = 18.800 (4) Å, β = 91.00 (3), V = 4033.9 (14) Å3 and Z = 4. Complex 2 crystallized in a monoclinic space group Cc with a = 13.5432 (4), b = 12.9981 (4), c = 25.7567 (11) Å, β = 104.028 (4), V = 1374.16 (7) Å3 and Z = 4.
authors.affiliation: College of Materils & Chemical Engineering, Collaborative Innovation Center for Microgrid of New Energy of Hubei Province, China Three Gorges University, Yichang 443002, China.
authors.forename: Ya-Pan
authors.initials: YP
authors.lastname: Wu
authors.affiliation: College of Materils & Chemical Engineering, Collaborative Innovation Center for Microgrid of New Energy of Hubei Province, China Three Gorges University, Yichang 443002, China. lidongsheng1@126.com.
authors.forename: Dong-Sheng
authors.initials: DS
authors.lastname: Li
authors.affiliation: College of Materils & Chemical Engineering, Collaborative Innovation Center for Microgrid of New Energy of Hubei Province, China Three Gorges University, Yichang 443002, China.
authors.forename: Wei
authors.initials: W
authors.lastname: Xia
authors.affiliation: College of Materils & Chemical Engineering, Collaborative Innovation Center for Microgrid of New Energy of Hubei Province, China Three Gorges University, Yichang 443002, China.
authors.forename: Sha-Sha
authors.initials: SS
authors.lastname: Guo
authors.affiliation: College of Materils & Chemical Engineering, Collaborative Innovation Center for Microgrid of New Energy of Hubei Province, China Three Gorges University, Yichang 443002, China.
authors.forename: Wen-Wen
authors.initials: WW
authors.lastname: Dong
mesh_terms: D001577:Benzophenones / Q000138:chemical synthesis / Q000737:chemistry; D018360:Crystallography, X-Ray; D028581:Lanthanoid Series Elements / Q000138:chemical synthesis / Q000737:chemistry*; D049449:Luminescence; D008670:Metals / Q000737:chemistry*; D011108:Polymers / Q000138:chemical synthesis / Q000737:chemistry*; D014961:X-Ray Diffraction
chemical_list: D001577:Benzophenones; D028581:Lanthanoid Series Elements; D008670:Metals; D011108:Polymers; C035476:2,2',4,4'-tetrahydroxybenzophenone