title: Synthesis of diamondoid lanthanide-polyoxometalate solids as tunable photoluminescent materials.
abstract: The reaction between polyoxometalate (POM) [TBA](12)[WZn{Zn(H(2)O)}(2)(ZnW(9)O(34))(2)] (TBA = tetrabutyl ammonium) and lanthanide (Ln) nitrate (Ln = La, Eu and Tb) in a mixed solvent of CH(3)CN and DMF yielded three noncentrosymmetric diamondoid Ln-POM solid materials, {[Ln(2)(DMF)(8)(H(2)O)(6)][ZnW(12)O(40)]}·4DMF (Ln-POM; Ln = La, Eu and Tb). In these compounds, the {ZnW(12)O(40)} unit, transferred from the metastable [WZn{Zn(H(2)O)}(2)(ZnW(9)O(34))(2)] cluster, acts as a tetradentate ligand to connect with four Ln nodes, while the Ln ion links up two {ZnW(12)O(40)} units. These compounds generated interesting luminescence emissions that are dependent on the Ln ions and their ratios. White light emission was obtained by a doped approach with a rational ratio of the Eu(3+) and Tb(3+) ions.
authors: Department of Chemistry, Zhejiang University, Hangzhou, 310027, P. R. China.
authors: Wen-Feng
authors: WF
authors: Zhao
authors: Chao
authors: C
authors: Zou
authors: Lian-Xu
authors: LX
authors: Shi
authors: Jian-Can
authors: JC
authors: Yu
authors: Guo-Dong
authors: GD
authors: Qian
authors: Chuan-De
authors: CD
authors: Wu
mesh_terms: D056831:Coordination Complexes / Q000138:chemical synthesis* / Q000737:chemistry; D018360:Crystallography, X-Ray; D005063:Europium / Q000737:chemistry; D028581:Lanthanoid Series Elements / Q000737:chemistry*; D007811:Lanthanum / Q000737:chemistry; D008968:Molecular Conformation; D013725:Terbium / Q000737:chemistry; D017973:Tungsten Compounds / Q000737:chemistry*; D000099294:Polyoxometalates
chemical_list: D056831:Coordination Complexes; D005063:Europium; D028581:Lanthanoid Series Elements; D007811:Lanthanum; D013725:Terbium; D017973:Tungsten Compounds; C102296:polyoxometalate I; D000099294:Polyoxometalates; C016534:lanthanide nitrate