(NEt4)2[(UO2)4F10(H2O)3] 以
neat (no solvent, solid phase) 为溶剂,
生成
参考文献:
名称:
Hydrothermal synthesis, crystal structure, and characterization of a new pseudo-two-dimensional uranyl oxyfluoride, [N(C2H5)4]2[(UO2)4(OH2)3F10]
摘要:
A new uranyl oxyfluoride, [N(C2H5)(4)](2)(UO2)(4)(OH2)(3)F-10] has been synthesized by a hydrothermal reaction technique using (C2H5)(4)NBr, UO2(OCOCH3)(2)center dot 2H(2)O, and HF as reagents. The structure of [N(C2H5)(4)[(2)[(UO2)(4)(OH2)(3)F-10] has been determined by a single-crystal X-ray diffraction technique. [N(C2H5)(4)](2)(UO2)(4)(OH2)(3)F-10] crystallizes in the monoclinic space group P2(1)/n (No. 14), with a = 13.852(3) angstrom, b = 15.532(3) angstrom, c = 16.481(3) angstrom, beta = 98.88(3)degrees, V = 3503.4(12) angstrom(3), and Z = 4. [N(C2H5)(4)](2)(UO2)(4)(OH2)(3)F-10] reveals a novel pseudo-two-dimensional crystal structure that is composed of UO2F5, UO3F4, and UO4F3 pentagonal bipyramids. Each uranyl pentagonal bipyramid shares edges and corners through F atoms to form a six-membered ring. The rings are further interconnected to generate infinite strips running along the b-axis. [N(C2H5)(4)](2)(UO2)(4)(OH2)(3)F-10] has been further characterized by elemental analysis, bond valence calculations, Infrared and Raman spectroscopy, and thermogravimetric analysis. (c) 2006 Elsevier Inc. All rights reserved.