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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) ,β = 106.713(1)°,V = 5801.8(5) 3,Z = 4,Dc = 3.755 g/cm3,F(000) = 5961,μ = 18.730 mm·1,R = 0.0569 and wR = 0.1437 (I > 2σ(I)).
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- Crystal data: H67Co2KMo3.24O72W8.76, Mr = 3297.87, monoclinic, C2 / c, a = 19.0126 (10), b = 16.6025 (5), c = 19.1908 (10) ) , β = 106.713 (1) °, V = 5801.8 (5) 3, Z = 4, Dc = 3.755 g / cm3, F (000) = 5961, μ = 18.730 mm · 1, R = = 0.1437 (I> 2σ (I)).