pH-Dependent Assembly of Hybrid Materials Based on Molybdates and Copper/imidazole Complexes

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Three novel inorganic-organic hybrid materials, [Cu(imi)2(H2O)(MoO4)]n 1, [Cu2(imi)3(MoO4)2]n·nH2O 2 and [Cu3(imi)2(OH)2(MoO4)2]n 3 (imi = imidazole), were synthesized and characterized by X-ray single-crystal structure determination.1 crystallizes in orthorhombic, space group Pca21 with a = 13.382(4), b = 8.527(2), c = 9.622(3) -, V = 1098.0(5) -3, Z = 4, C6H10CuMoN4O5, Mr = 377.66, Dc = 2.285 g/cm3, F(000) = 740, μ(MoKα) = 3.095 mm-1, the final R = 0.0256 and wR = 0.0722 for 1896 observed reflections with I > 2σ(I).2 crystallizes in monoclinic, space group P21/c with a = 11.170(2), b = 7.8244(15), c = 22.631(4) -, β = 115.790(7)o, V = 1780.9(6) -3, Z = 4, C9H14Cu2Mo2N6O9, Mr = 669.24, Dc = 2.496 g/cm3, F(000) = 1295, μ(MoKα) = 3.792 mm-1, the final R = 0.0225 and wR = 0.0615 for 3838 observed reflections with I > 2σ(I).3 crystallizes in monoclinic, space group P21/c with a = 5.5599(19), b = 23.771(8), c = 7.3044(18) -, β = 129.356(16)o, V = 746.5(4) -3, Z = 2, C6H10Cu3Mo2N4O10, Mr = 680.71, Dc = 3.029 g/cm3, F(000) = 650, μ(MoKα) = 5.900 mm-1, the final R = 0.0215 and wR = 0.0524 for 1620 observed reflections with I > 2σ(I).
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