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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)).
Two new polyoxomolybdate compounds, namely CuII2 (HL) 3] 2 [Mo8O26] · (H2O) 4 (1) and [NiII (HL) 3] 2 (Mo8O26) · (H2O) 3 (HL) 2-pyridyl) pyrazole), designed and synthesized under hydrothermal conditions. X-ray diffraction analyzes 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 terminal oxygen atoms of [Mo8O26] 4-, water molecules and 3- (2-pyridyl) pyrazole ligands. Crystal data of 1: C24H25Cu2Mo4N9O15, Mr = 1190.37, monoclinic, space group P21 a = 10.850 (2), b = 18.510 (4), c = 17.230 (3) , β = 100.57 (3) °, V = 3401.6 (12) 3, Z = 4, Dc = / 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, a = 20.799 (2), b = 14.7970 (13), c = 23.141 (2) β, 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)).