One novel polyoxometalate compound connected via trivalent cerium cation as bridge H2{[K(H2O)2]2[Ce(H2O)5]2(H2Mo1.16W10.84O42)}·8H2O 1 was designed and synthesized in aqueous solution. X-ray diffraction analysis ...One novel polyoxometalate compound connected via trivalent cerium cation as bridge H2{[K(H2O)2]2[Ce(H2O)5]2(H2Mo1.16W10.84O42)}·8H2O 1 was designed and synthesized in aqueous solution. X-ray diffraction analysis reveals that the structure of 1 is a three-dimensional framework assembled from the arrangement of H2Mo1.16W10.84O42 (named paradodecmetalate-B) and Ce(H2O)53+ containing two planes, which are constructed through the unification of H2Mo1.16W10.84O4210- and Ce(H2O)53+ along the [100] and [001] directions. Crystal data: H96Ce4K4Mo2.32O128W21.68, Mr = 7074.89, monoclinic, P21/n, a = 12.5037(17), b = 17.002(2), c = 12.7473(17) A, β = 105.966(2)°, V = 2605.4(6) 3, Z = 1, Dc = 4.509 g/cm3, F(000) = 3132, μ = 26.098 mm-1, R = 0.0377 and wR = 0.0789 (I > 2σ(I)).展开更多
A Keggin-type tungstohosphate compound [CuI(2,2?-bipy)2]3[PWVI12O40] 1 (bipy = bipyridine) was prepared by the hydrothermal method for the first time. Single-crystal X-ray diffraction revealed that 1 (C60H48Cu3N12O40P...A Keggin-type tungstohosphate compound [CuI(2,2?-bipy)2]3[PWVI12O40] 1 (bipy = bipyridine) was prepared by the hydrothermal method for the first time. Single-crystal X-ray diffraction revealed that 1 (C60H48Cu3N12O40PW12) crystallizes in the monoclinic system, space group P21/c with a = 16.9837(10), b = 17.9732(13) c = 27.8701(13) ?, β = 96.1039(10)o, V = 8459.2(9) ?3, Mr = 4004.89, Z = 4, Dc = 3.145 g/cm3, μ = 17.089 mm-1, F(000) = 7208, S = 1.005, the final R = 0.0469 and wR = 0.0827 for 10807 observed reflections (I > 2σ(I)). Compound 1 consists of one discrete normal Keggin polyanion [PWVI12O40]3? and three isolated coordinated cat- ions [CuI(2,2?-bipy)2]+. Significantly, there exist three crystallographically independent asymmetric reduced copper (I) centers in 1. Furthermore, the compound shows strong photoluminescence property in solid state at room temperature.展开更多
An organic-inorganic mercury coordination compound [Hg(DMSO)2(H2O)]2 [GeW12O40]· DMSO·H2O (DMSO =dimethyl sulfoxide) has been synthesized and characterized by IR, UV spectra, elemental analysis, TG-DTA and X...An organic-inorganic mercury coordination compound [Hg(DMSO)2(H2O)]2 [GeW12O40]· DMSO·H2O (DMSO =dimethyl sulfoxide) has been synthesized and characterized by IR, UV spectra, elemental analysis, TG-DTA and X-ray single-crystal diffraction. Structural analysis revealed that in the title compound, the mercury is three-coordinated to show the distorted trigonal cone geometry, and depending on the electrostatic interaction to connect the polyanion [α-GeW12O40]4-. TG-DTA study manifests the decomposition temperature of the polyanion framework in the title compound is 513.5℃, which is much higher than that of the anion framework. It means that the formation of the organic-inorganic mercury coordination compound made the polyanion [α-GeW12O40]4- to be more stable.展开更多
基金supported by the National Key Basic Research Program of China(973 program,2013CB934101)National Natural Science Foundation of China(21433002,21573046)+1 种基金China Postdoctoral Science Foundation(2016M601492)International Science and Technology Cooperation Projects of Guangxi(15104001-5)~~
基金NNSFC (No. 20501011) Liaocheng University (31801)
文摘One novel polyoxometalate compound connected via trivalent cerium cation as bridge H2{[K(H2O)2]2[Ce(H2O)5]2(H2Mo1.16W10.84O42)}·8H2O 1 was designed and synthesized in aqueous solution. X-ray diffraction analysis reveals that the structure of 1 is a three-dimensional framework assembled from the arrangement of H2Mo1.16W10.84O42 (named paradodecmetalate-B) and Ce(H2O)53+ containing two planes, which are constructed through the unification of H2Mo1.16W10.84O4210- and Ce(H2O)53+ along the [100] and [001] directions. Crystal data: H96Ce4K4Mo2.32O128W21.68, Mr = 7074.89, monoclinic, P21/n, a = 12.5037(17), b = 17.002(2), c = 12.7473(17) A, β = 105.966(2)°, V = 2605.4(6) 3, Z = 1, Dc = 4.509 g/cm3, F(000) = 3132, μ = 26.098 mm-1, R = 0.0377 and wR = 0.0789 (I > 2σ(I)).
基金Project supported by the Natural Science Foundation of Fujian Province (E0310016) and the Education Committee Foundation of Fujian Province (JB05309)
文摘A Keggin-type tungstohosphate compound [CuI(2,2?-bipy)2]3[PWVI12O40] 1 (bipy = bipyridine) was prepared by the hydrothermal method for the first time. Single-crystal X-ray diffraction revealed that 1 (C60H48Cu3N12O40PW12) crystallizes in the monoclinic system, space group P21/c with a = 16.9837(10), b = 17.9732(13) c = 27.8701(13) ?, β = 96.1039(10)o, V = 8459.2(9) ?3, Mr = 4004.89, Z = 4, Dc = 3.145 g/cm3, μ = 17.089 mm-1, F(000) = 7208, S = 1.005, the final R = 0.0469 and wR = 0.0827 for 10807 observed reflections (I > 2σ(I)). Compound 1 consists of one discrete normal Keggin polyanion [PWVI12O40]3? and three isolated coordinated cat- ions [CuI(2,2?-bipy)2]+. Significantly, there exist three crystallographically independent asymmetric reduced copper (I) centers in 1. Furthermore, the compound shows strong photoluminescence property in solid state at room temperature.
文摘An organic-inorganic mercury coordination compound [Hg(DMSO)2(H2O)]2 [GeW12O40]· DMSO·H2O (DMSO =dimethyl sulfoxide) has been synthesized and characterized by IR, UV spectra, elemental analysis, TG-DTA and X-ray single-crystal diffraction. Structural analysis revealed that in the title compound, the mercury is three-coordinated to show the distorted trigonal cone geometry, and depending on the electrostatic interaction to connect the polyanion [α-GeW12O40]4-. TG-DTA study manifests the decomposition temperature of the polyanion framework in the title compound is 513.5℃, which is much higher than that of the anion framework. It means that the formation of the organic-inorganic mercury coordination compound made the polyanion [α-GeW12O40]4- to be more stable.
