Amine templating effect absent in uranyl sulfates synthesized with 1,4-n-butyldiamine

作者：Jouffret Laurent J^*; Wylie Ernest M; Burns Peter C

来源：Journal of Solid State Chemistry, 2013, 197: 160-165.

DOI：10.1016/j.jssc.2012.08.050

• Uranyl sulfate
• Single crystal structure analysis
• X-ray diffraction
• Templating agent

Two new uranyl sulfates, (C4H14N2)[(UO2)(2)(SO4)(3)(H2O)]center dot 2H(2)O (NDUS2) and (C4H14N2)[(UO2)(SO4)(2)(H2O)]center dot 2H(2)O (NDUS3), were synthesized and their crystal structures determined. NDUS2 was obtained in highly acidic media heat-treated at 373 K and subsequently maintained at 278 K until crystals formed after two months. NDUS3 results from the degradation of NDUS2 over the course of a few days. NDUS2 and NDUS3 crystallize in the monoclinic space group P2(1)/n, a = 10.9075(4) angstrom, b = 10.4513(4) angstrom, c = 17.7881(7) angstrom, beta = 97.908( 2)degrees, V = 2008.52(13) angstrom(3), Z = 4, at 740 K and a = 8.8570(4) angstrom, b = 7.3299(3) angstrom, c = 20.4260(9) angstrom, beta = 95.140(2)degrees, V = 1320.74(10) angstrom(3), Z = 4, at 140 K, respectively. The compounds contain interlayer 1,4-n-butyldiammonium cations that charge-balance the anionic structural units.

• 出版日期2013-1