title: New lanthanide hybrid as clustered infinite nanotunnel with 3D Ln-O-Ln framework and (3,4)-connected net.
abstract: A series of new lanthanide hybrids [Ln3(mu-OH)4 (2,5-pydc)(2,5-Hpydc)3(H2O)4]n (Ln = Gd (1), Dy (2), Er (3), Eu (4), Sm (5), Yb (6), Y (7); 2,5-pydc=pyridine-2,5-dicarboxylate), as clustered lanthanide oxide ring tunnels with helical dodecahedral chains and fully 3D Ln-O-Ln connectivity, has been hydrothermally synthesized and characterized. The inorganic skeleton of the hybrid can be specified by the Schläfli symbol (6210)2 (64102) as a single 3D (3,4)-connected net. The luminescence properties have been studied, and the results showed that the Dy(III) (2) and Eu(III) (4) complexes exhibited sensitized luminescence in the visible region. Variable-temperature magnetic susceptibility measurements of 1-6 showed that the complexes 1-3 are nearly paramagnets, whereas the depopulation of the Stark levels in complexes 4-6 leads to a continuous decrease in mu(eff) when the sample is cooled from 300 to 2 K.
authors.affiliation: State Key Laboratory of Structure Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China.
authors.forename: You-gui
authors.initials: YG
authors.lastname: Huang
authors.forename: Ben-lai
authors.initials: BL
authors.lastname: Wu
authors.forename: Da-qiang
authors.initials: DQ
authors.lastname: Yuan
authors.forename: Yan-qing
authors.initials: YQ
authors.lastname: Xu
authors.forename: Fei-long
authors.initials: FL
authors.lastname: Jiang
authors.forename: Mao-chun
authors.initials: MC
authors.lastname: Hong
mesh_terms: D028581:Lanthanoid Series Elements / Q000138:chemical synthesis*; D007811:Lanthanum / Q000737:chemistry*; D049449:Luminescence; D015394:Molecular Structure; D049329:Nanostructures / Q000737:chemistry*; D009942:Organometallic Compounds / Q000138:chemical synthesis*; D010087:Oxides / Q000737:chemistry*; D010777:Photochemistry; D011725:Pyridines / Q000737:chemistry; D013057:Spectrum Analysis; D013696:Temperature
chemical_list: D028581:Lanthanoid Series Elements; D009942:Organometallic Compounds; D010087:Oxides; D011725:Pyridines; C043093:2,5-Pyridinedicarboxylic acid; C103829:lanthanum oxide; D007811:Lanthanum