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A 4, 4′-bipyridine bridging dumbbell-like dimeric pentamolybdate [4, 4′-H2bipy]3[4,4′- Hbipy]2[(Mo5O17)2(4,4′-bipy)] has been synthesized by hydrothermal synthesis and characterized by elemental analysis, IR spectrum, UV spectrum, TG and X-ray crystallography. The title compound crystallizes in triclinic, space group P with a = 10.578(2), b = 11.047(2), c = 16.576(3) , α = 79.86(3), β = 75.34(3), γ = 79.40(3)°, C60H58Mo10N12O34, Mr = 2450.58, V = 1824.8(6) 3, Z = 1, Dc = 2.230 g/cm3, F(000) = 1194, μ = 1.757 mm-1, the final R = 0.0252 and wR = 0.0559 for 5506 observed reflections with I > 2((I). The structural analysis indicates that the title compound contains a novel polyanion [(Mo5O17)2(4,4-bipy)]8-, in which two identical (Mo5O17)4- anions are buttres- sed by a 4,4′-bipyridine molecule through Mo-N bond.
A 4, 4’-bipyridine bridging dumbbell-like dimeric pentamolybdate [4, 4’-H2bipy] 3 [4,4’- Hbipy] 2 [(Mo5O17) 2 (4,4’-bipy)] has been synthesized by hydrothermal synthesis and characterized by elemental analysis, IR spectrum, UV spectrum, TG and X-ray crystallography. The title compound crystallizes in triclinic space group P with a = 10.578 (2), b = 11.047 (2), c = 16.576 Α = 79.86 (3), β = 75.34 (3), γ = 79.40 (3) °, C60H58Mo10N12O34, Mr = 2450.58, V = 1824.8 63, Z = 1 and Dc = 2.230 g / cm3 , The final R = 0.0252 and wR = 0.0559 for 5506 at reflections with I> 2 ((I). The structural analysis indicates that the title compound contains a novel polyanion [ (Mo5O17) 2 (4,4-bipy)] 8-, which are identical (Mo5O17) 4-anions are buttres- sed by a 4,4’-bipyridine molecule through Mo-N bond.