Two new polyoxomolybdate compounds,namely CuII2(HL)3]2[Mo8O26]·(H2O)4(1) and [NiII(HL)3]2(Mo8O26)·(H2O)3(2)(HL = 3-(2-pyridyl)pyrazole),were designed and synthesized under hydrothermal cond...Two new polyoxomolybdate compounds,namely CuII2(HL)3]2[Mo8O26]·(H2O)4(1) and [NiII(HL)3]2(Mo8O26)·(H2O)3(2)(HL = 3-(2-pyridyl)pyrazole),were designed and synthesized under hydrothermal conditions.X-ray diffraction analyses reveal that compound 1 consists of one β-Mo8O264-cluster and a Cu2 dimer which is built from two Cu(II) ions linked by three 3-(2-pyridyl)pyrazole ligands.Compound 2 is generated by two kinds of polyoxomolybdate clusters of α-[Mo8O26]4-and β-[Mo8O26]4-.In complexes 1 and 2,the multi-dimensional frameworks are con-structed with the help of hydrogen-bonding links between the terminaloxygen atoms of [Mo8O26]4-,water molecules,and 3-(2-pyridyl)pyrazole ligands.Crystal data of 1:C24H25Cu2Mo4N9O15,Mr = 1190.37,monoclinic,space group P21/c,a = 10.850(2),b = 18.510(4),c = 17.230(3) ,β = 100.57(3)°,V = 3401.6(12) 3,Z = 4,Dc = 2.324 g/cm3,F(000) = 2312,μ = 2.742 mm-1,R = 0.0302 and wR = 0.0775(Ⅰ 〉 2σ(Ⅰ));Crystal data for 2:C48H48Mo8N18Ni2O29,Mr = 2225.98,monoclinic,space group P21/n,a = 20.799(2),b = 14.7970(13),c = 23.141(2) ,β = 91.6180(10)°,V = 7119.0(11) 3,Z = 4,Dc = 2.077 g/cm3,F(000) = 4344,μ = 1.968 mm-1,R = 0.0309 and wR = 0.0696(Ⅰ〉 2σ(Ⅰ)).展开更多
A new polyoxomolybdate complex HNaT[Mo36O112(H2O)16]·47H2O 1 has been prepared in the beaker solution and characterized by single-crystal X-ray diffraction and elemental analyses. Crystal data: H127Mo36Na7O175...A new polyoxomolybdate complex HNaT[Mo36O112(H2O)16]·47H2O 1 has been prepared in the beaker solution and characterized by single-crystal X-ray diffraction and elemental analyses. Crystal data: H127Mo36Na7O175, Mr = 6542.79, monoclinic, C2/c, a = 40.891(6), b = 17.900(3), c = 25.580(4)A, β = 125.673(2)°, V = 15210(4)A3, Z = 4, Dc = 2.857 g/cm^3, F(000) = 12464,μ = 3.013 mm^-1, R = 0.0633 and wR = 0.1654 (I 〉 20(I)). With the bridging sodium cations, the [Mo36Ou2(H2O)16]^8- units in compound 1 are linked to form a one-dimensional structure, on the basis of which a three-dimensional architecture is further constructed via other sodium cations and complicated hydrogen bonds.展开更多
Two new polyoxomolybdate compounds,namely(CuIIL2)2[CuⅡ(HL)2]2[Mo8O26(HL)2].(H2O)4(1) and [CuⅡ(HL)2]2[β-Mo8O26](HL)2(2)(HL=imidazole),were designed and synthesized under hydrothermal conditions.X-r...Two new polyoxomolybdate compounds,namely(CuIIL2)2[CuⅡ(HL)2]2[Mo8O26(HL)2].(H2O)4(1) and [CuⅡ(HL)2]2[β-Mo8O26](HL)2(2)(HL=imidazole),were designed and synthesized under hydrothermal conditions.X-ray diffraction analyses reveal that compound 1 consists of one Mo8O26(HL)24-cluster,two CuL2,two Cu(HL)22+,and four disassociated water molecules;and compound 2 is constructed by one β-Mo8O264-cluster,two Cu(HL)22+,and two uncoordinated imidazole molecules.展开更多
One new polyoxometalate compound connected via nickel/potassium cations, H8K{[Ni(H2O)5]2(H2Mo1.80W10.20O42)}Cl3·16H2O 1, was prepared and characterized by elemental analysis and IR spectroscopy. Single-crysta...One new polyoxometalate compound connected via nickel/potassium cations, H8K{[Ni(H2O)5]2(H2Mo1.80W10.20O42)}Cl3·16H2O 1, was prepared and characterized by elemental analysis and IR spectroscopy. Single-crystal X-ray diffraction analysis results reveal that clusters of [Ni(H2O)5]2(H2Mo1.80W10.20O42)}^6-in compound 1 are linked by potassium cations to form one- dimiensional chains, based on which a three-dimensional network is further constructed via the hydrogen bonds of O…O and O…Cl. Magnetic measurements show that compound 1 has paramagnetic properties. Crystal data: H62Cl3KMo1.80Ni2O68W10.20, Mr = 3461.33, monoclinic, space group C2/c, a = 18.9291(19), b = 16.6758(17), c = 19.1064(19)A, β = 106.6880(10)°, V = 5777.1(10)A^3, Z = 4, Dc = 3.980 g/cm^3, F(000) = 6250, μ = 21.574 mm^-1, R = 0.0579 and wR = 0.1623 (Ⅰ 〉 2σ(Ⅰ)).展开更多
One new polyoxometalate compound connected via cobalt/potassium cations,namely H5K{[Co(H2O)5]2(H2Mo3.24W8.76O42)}·19H2O 1,was prepared and characterized by ele- mental analysis and IR spectroscopy. Single-cry...One new polyoxometalate compound connected via cobalt/potassium cations,namely H5K{[Co(H2O)5]2(H2Mo3.24W8.76O42)}·19H2O 1,was prepared and characterized by ele- mental analysis and IR spectroscopy. Single-crystal X-ray diffraction analysis result reveals that anions of {[Co(H2O)5]2(H2Mo3.24W8.76O42)}6- in compound 1 are linked by potassium cations to form one- dimensional chain,based on which a three-dimensional network is further constructed with the help of hydrogen bonds. Crystal data: H67Co2KMo3.24O72W8.76,Mr = 3297.87,monoclinic,C2/c,a = 19.0126(10),b = 16.6025(5),c = 19.1908(10)A,β = 106.713(1)°,V = 5801.8(5) A^3,Z = 4,Dc = 3.755 g/cm^3,F(000) = 5961,μ = 18.730 mm^-1,R = 0.0569 and wR = 0.1437 (I 〉 2σ(I)).展开更多
基金Supported by the 973 Key Program of the MOST (2006CB932904,2007CB815304)the National Natural Science Foundation of China (20873150,20821061,and 50772113)+2 种基金the Chinese Academy of Sciences (KJCX2-YW-M05)the Chinese Academy of Sciences (''Hundred Talents Program'') Ministry of Science and Technology of China (Project of ''973'' plan,No. 2007CB607606),and Shandong Provincial Education Department and Qilu Normal University
文摘Two new polyoxomolybdate compounds,namely CuII2(HL)3]2[Mo8O26]·(H2O)4(1) and [NiII(HL)3]2(Mo8O26)·(H2O)3(2)(HL = 3-(2-pyridyl)pyrazole),were designed and synthesized under hydrothermal conditions.X-ray diffraction analyses reveal that compound 1 consists of one β-Mo8O264-cluster and a Cu2 dimer which is built from two Cu(II) ions linked by three 3-(2-pyridyl)pyrazole ligands.Compound 2 is generated by two kinds of polyoxomolybdate clusters of α-[Mo8O26]4-and β-[Mo8O26]4-.In complexes 1 and 2,the multi-dimensional frameworks are con-structed with the help of hydrogen-bonding links between the terminaloxygen atoms of [Mo8O26]4-,water molecules,and 3-(2-pyridyl)pyrazole ligands.Crystal data of 1:C24H25Cu2Mo4N9O15,Mr = 1190.37,monoclinic,space group P21/c,a = 10.850(2),b = 18.510(4),c = 17.230(3) ,β = 100.57(3)°,V = 3401.6(12) 3,Z = 4,Dc = 2.324 g/cm3,F(000) = 2312,μ = 2.742 mm-1,R = 0.0302 and wR = 0.0775(Ⅰ 〉 2σ(Ⅰ));Crystal data for 2:C48H48Mo8N18Ni2O29,Mr = 2225.98,monoclinic,space group P21/n,a = 20.799(2),b = 14.7970(13),c = 23.141(2) ,β = 91.6180(10)°,V = 7119.0(11) 3,Z = 4,Dc = 2.077 g/cm3,F(000) = 4344,μ = 1.968 mm-1,R = 0.0309 and wR = 0.0696(Ⅰ〉 2σ(Ⅰ)).
基金The work was supported by NNSFC (No. 20501011) Liaocheng University (31801)
文摘A new polyoxomolybdate complex HNaT[Mo36O112(H2O)16]·47H2O 1 has been prepared in the beaker solution and characterized by single-crystal X-ray diffraction and elemental analyses. Crystal data: H127Mo36Na7O175, Mr = 6542.79, monoclinic, C2/c, a = 40.891(6), b = 17.900(3), c = 25.580(4)A, β = 125.673(2)°, V = 15210(4)A3, Z = 4, Dc = 2.857 g/cm^3, F(000) = 12464,μ = 3.013 mm^-1, R = 0.0633 and wR = 0.1654 (I 〉 20(I)). With the bridging sodium cations, the [Mo36Ou2(H2O)16]^8- units in compound 1 are linked to form a one-dimensional structure, on the basis of which a three-dimensional architecture is further constructed via other sodium cations and complicated hydrogen bonds.
基金supported by Financial support from the Natural Science Foundation of Shandong Province (BR2010BQ023)Shandong Provincial Education Department,and Qilu Normal University
文摘Two new polyoxomolybdate compounds,namely(CuIIL2)2[CuⅡ(HL)2]2[Mo8O26(HL)2].(H2O)4(1) and [CuⅡ(HL)2]2[β-Mo8O26](HL)2(2)(HL=imidazole),were designed and synthesized under hydrothermal conditions.X-ray diffraction analyses reveal that compound 1 consists of one Mo8O26(HL)24-cluster,two CuL2,two Cu(HL)22+,and four disassociated water molecules;and compound 2 is constructed by one β-Mo8O264-cluster,two Cu(HL)22+,and two uncoordinated imidazole molecules.
基金The work was supported by NNSFC (No. 20501011)Liaocheng University (31801)
文摘One new polyoxometalate compound connected via nickel/potassium cations, H8K{[Ni(H2O)5]2(H2Mo1.80W10.20O42)}Cl3·16H2O 1, was prepared and characterized by elemental analysis and IR spectroscopy. Single-crystal X-ray diffraction analysis results reveal that clusters of [Ni(H2O)5]2(H2Mo1.80W10.20O42)}^6-in compound 1 are linked by potassium cations to form one- dimiensional chains, based on which a three-dimensional network is further constructed via the hydrogen bonds of O…O and O…Cl. Magnetic measurements show that compound 1 has paramagnetic properties. Crystal data: H62Cl3KMo1.80Ni2O68W10.20, Mr = 3461.33, monoclinic, space group C2/c, a = 18.9291(19), b = 16.6758(17), c = 19.1064(19)A, β = 106.6880(10)°, V = 5777.1(10)A^3, Z = 4, Dc = 3.980 g/cm^3, F(000) = 6250, μ = 21.574 mm^-1, R = 0.0579 and wR = 0.1623 (Ⅰ 〉 2σ(Ⅰ)).
基金supported by the National Ministry of Science and Technology of China (No. 2001CB6105-07)
文摘One new polyoxometalate compound connected via cobalt/potassium cations,namely H5K{[Co(H2O)5]2(H2Mo3.24W8.76O42)}·19H2O 1,was prepared and characterized by ele- mental analysis and IR spectroscopy. Single-crystal X-ray diffraction analysis result reveals that anions of {[Co(H2O)5]2(H2Mo3.24W8.76O42)}6- in compound 1 are linked by potassium cations to form one- dimensional chain,based on which a three-dimensional network is further constructed with the help of hydrogen bonds. Crystal data: H67Co2KMo3.24O72W8.76,Mr = 3297.87,monoclinic,C2/c,a = 19.0126(10),b = 16.6025(5),c = 19.1908(10)A,β = 106.713(1)°,V = 5801.8(5) A^3,Z = 4,Dc = 3.755 g/cm^3,F(000) = 5961,μ = 18.730 mm^-1,R = 0.0569 and wR = 0.1437 (I 〉 2σ(I)).