利用水热合成法合成了分子组成为(C6H11NH3)5H(P2Mo5O23)4H2O的杂多化合物, 用单晶X-ray衍射方法测定了它的结构,该晶体属于单斜晶系,空间群P21/c, a = 12.830(3), b = 14.848(3), c = 25.258(5) ? b = 92.95(3), Mr = 1483.62, V = 48...利用水热合成法合成了分子组成为(C6H11NH3)5H(P2Mo5O23)4H2O的杂多化合物, 用单晶X-ray衍射方法测定了它的结构,该晶体属于单斜晶系,空间群P21/c, a = 12.830(3), b = 14.848(3), c = 25.258(5) ? b = 92.95(3), Mr = 1483.62, V = 4805.1(17) 3, Z = 4, Dc = 2.051 g/cm3, m = 1.431 mm-1, F(000) = 3000, I >2s(I) 的可观察衍射点4426个, 最终结构偏差因子R = 0.0464, wR = 0.0801, S = 0.731。在[P2Mo5O23]6-杂多阴离子中5个MoO6八面体通过共边和共角相连, 形成1个近似的五角平面骨架, 2个PO4四面体加在五角平面的两侧。热性质研究表明杂多阴离子骨架在547.4 ℃左右分解。展开更多
A polyoxometalate-based complex [Mn(DMSO)5H2O]2SiMo12O40 has been synthe- sized and it crystallizes in triclinic, space group P with a = 11.863(2), b = 12.750(3), c = 13.255(3) , a = 83.62(3), b = 69.46(3), g = 87.14(...A polyoxometalate-based complex [Mn(DMSO)5H2O]2SiMo12O40 has been synthe- sized and it crystallizes in triclinic, space group P with a = 11.863(2), b = 12.750(3), c = 13.255(3) , a = 83.62(3), b = 69.46(3), g = 87.14(3), V = 1865.6(6) 3, Dc = 2.445 g/cm3, Z = 1, ?= 2.660 mm-1, Mr = 2746.56, F(000) = 1328, R = 0.0569, wR = 0.1190 and GOF = 1.125. The results of X-ray crystal analysis and IR spectrum show that there exists strong interaction between the heteropolyanions [SiMo12O40]4- and coordination cations [Mn(DMSO)5H2O]2+ in solid state.展开更多
A novel 3D polyoxotungstate [Ca(H2O)2][Ca(H2O)3]H2[P2W18O62]·9H2O(1) has been synthesized by the conventional aqueous solution method and characterized by IR spectrum,elemental analyses,single-crystal X-ray diffr...A novel 3D polyoxotungstate [Ca(H2O)2][Ca(H2O)3]H2[P2W18O62]·9H2O(1) has been synthesized by the conventional aqueous solution method and characterized by IR spectrum,elemental analyses,single-crystal X-ray diffraction and electrochemistry.1 crystallizes in triclinic,space group P1 with a = 12.9077(14),b = 14.8593(16),c = 20.023(2),α = 70.1620(10),β = 80.8110(10),γ = 64.3770(10)o,V = 3256.9(6)3,Z = 2,Dc = 4.790 g/cm3,μ = 31.975 mm-1,F(000) = 4080,R = 0.0412,and wR = 0.1039.X-ray single-crystal structural analysis indicates that the molecular structural unit of 1 consists of one saturated Dawson [α-P2W18O62]6-polyanion,one seven-coordinate [Ca(H2O)2]2+ cation,one eight-coordinate [Ca(H2O)3]2+ cation,two protons and nine lattice water molecules.Interestingly,adjacent Dawson [α-P2W18O62]6-polyanions are connected by [Ca(H2O)2]2+ and [Ca(H2O)3]2+ cations and hydrogen bonding interactions to form a 3D infinite framework.The electrochemistry property of 1 has been studied.展开更多
A new hybrid polyoxometalate-based complex, [CuI(phen)2]4(SiW12O40) (phen = 1,10-phenanthroline), has been synthesized by hydrothermal method and characterized with the aid of elemental analysis, IR, UV spectra and th...A new hybrid polyoxometalate-based complex, [CuI(phen)2]4(SiW12O40) (phen = 1,10-phenanthroline), has been synthesized by hydrothermal method and characterized with the aid of elemental analysis, IR, UV spectra and thermal analysis studies. The result of X-ray crystallo- graphy analysis exhibits that the title compound crystallizes in the orthorhombic space group P212121, and the formula is C96H64N16Cu4SiW12O40. Crystal data: a = 18.3574(14), b = 21.1952(16), c = 27.992(2) , Mr = 4570.08, V = 10891.4(14) 3, Z = 4, Dc = 2.787 g/cm3, μ = 13.478 mm–1, R = 0.0364, wR = 0.0638 (I > 2σ(I)) and F(000) = 8360. The complex consists of one α-Keggin anion [SiW12O40]4– and four discrete [CuⅠ(phen)2]+ cations. The valence sum calculations for the Cu atoms suggest that all four Cu atoms are in the +1 oxidation state.展开更多
基金The project was supported by the Natural Science Foundation of Henan Province (NO. 004040300) and the Outstanding Youth Foundation of Henan Province (NO. 004031800)
文摘A polyoxometalate-based complex [Mn(DMSO)5H2O]2SiMo12O40 has been synthe- sized and it crystallizes in triclinic, space group P with a = 11.863(2), b = 12.750(3), c = 13.255(3) , a = 83.62(3), b = 69.46(3), g = 87.14(3), V = 1865.6(6) 3, Dc = 2.445 g/cm3, Z = 1, ?= 2.660 mm-1, Mr = 2746.56, F(000) = 1328, R = 0.0569, wR = 0.1190 and GOF = 1.125. The results of X-ray crystal analysis and IR spectrum show that there exists strong interaction between the heteropolyanions [SiMo12O40]4- and coordination cations [Mn(DMSO)5H2O]2+ in solid state.
基金supported by the National Natural Science Foundation of Chinathe Program for New Century Excellent Talent in Henan University+1 种基金the Foundation of Education Department of Henan Provincethe Natural Science Foundation of Henan Province
文摘A novel 3D polyoxotungstate [Ca(H2O)2][Ca(H2O)3]H2[P2W18O62]·9H2O(1) has been synthesized by the conventional aqueous solution method and characterized by IR spectrum,elemental analyses,single-crystal X-ray diffraction and electrochemistry.1 crystallizes in triclinic,space group P1 with a = 12.9077(14),b = 14.8593(16),c = 20.023(2),α = 70.1620(10),β = 80.8110(10),γ = 64.3770(10)o,V = 3256.9(6)3,Z = 2,Dc = 4.790 g/cm3,μ = 31.975 mm-1,F(000) = 4080,R = 0.0412,and wR = 0.1039.X-ray single-crystal structural analysis indicates that the molecular structural unit of 1 consists of one saturated Dawson [α-P2W18O62]6-polyanion,one seven-coordinate [Ca(H2O)2]2+ cation,one eight-coordinate [Ca(H2O)3]2+ cation,two protons and nine lattice water molecules.Interestingly,adjacent Dawson [α-P2W18O62]6-polyanions are connected by [Ca(H2O)2]2+ and [Ca(H2O)3]2+ cations and hydrogen bonding interactions to form a 3D infinite framework.The electrochemistry property of 1 has been studied.
基金This work was supported by the Program for New Century Excellent Talents in University of Henan Province (2005HANCET-02)Natural Science Foundation of Henan Province (0611020200)
文摘A new hybrid polyoxometalate-based complex, [CuI(phen)2]4(SiW12O40) (phen = 1,10-phenanthroline), has been synthesized by hydrothermal method and characterized with the aid of elemental analysis, IR, UV spectra and thermal analysis studies. The result of X-ray crystallo- graphy analysis exhibits that the title compound crystallizes in the orthorhombic space group P212121, and the formula is C96H64N16Cu4SiW12O40. Crystal data: a = 18.3574(14), b = 21.1952(16), c = 27.992(2) , Mr = 4570.08, V = 10891.4(14) 3, Z = 4, Dc = 2.787 g/cm3, μ = 13.478 mm–1, R = 0.0364, wR = 0.0638 (I > 2σ(I)) and F(000) = 8360. The complex consists of one α-Keggin anion [SiW12O40]4– and four discrete [CuⅠ(phen)2]+ cations. The valence sum calculations for the Cu atoms suggest that all four Cu atoms are in the +1 oxidation state.
