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A heterometal-organic framework {[Pr_2Ca(betc)_2(H_2O)_7]·H_2O}_n(1) was prepared by the hydrothermal reaction of 1,2,4,5-benzenetetracarboxylic acid(H4betc) with Pr(NO_3)_3 and CaCO_3, and further characterized by single-crystal X-ray structural analysis, elemental analysis, IR, thermal gravimetric, and X-ray powder diffraction. Complex 1 crystallizes in triclinic, space group P1 with a = 7.3668(12), b = 10.1726(14), c = 11.2264(15) ?, a = 100.404(2), b = 106.113(3), g = 109.158(3)o, V = 728.48(19) ?~3, Mr = 966.26, Z = 1, F(000) = 470, Dc = 2.203 g/cm~3, m(Mo Kα) = 3.585 mm~(-1), the final R = 0.0195 and w R = 0.0470(I > 2s(I)). Complex 1 is a 3D network with pcu topology with 1D porosity and rich hydrogen-bonding interactions. The proton conductivity of complex 1 was also studied under ~97% relative humidity and the different temperature conditions.
A heterometal-organic framework {[Pr_2Ca (betc) _2 (H_2O) _7] · H_2O} _n (1) was prepared by the hydrothermal reaction of 1,2,4,5-benzenetetracarboxylic acid (H4betc) with Pr (NO_3) _3 and CaCO_3, and further characterized by single-crystal X-ray structural analysis, elemental analysis, IR, thermal gravimetric, and X-ray powder diffraction. Complex 1 crystallizes in triclinic space group P1 with a = 7.3668 (12), b = 10.1726 (14), c = 11.2264 (15), a = 100.404 (2), b = 106.113 (3), g = 109.158 (3) o and V = 728.48 = 1, F (000) = 470, Dc = 2.203 g / cm3, m (Mo Kα) = 3.585 mm -1, final R = 0.0195 and w R = 0.0470 (I> 2s ). The proton conductivity of complex 1 was also studied under ~ 97% relative humidity and the different temperature conditions.