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Synthesis, Crystal Structure, Fluorescent and Thermal Properties of Sodium Tridecafluorodizirconate Na_5Zr_2F_(13) Compound
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作者 MAO Shao-Yu KANG You-Jun +4 位作者 MI Jin-Xiao LI Man-Rong WEI Zan-Bin WU Xue-Yan ZHAO Jing-Tai 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 北大核心 2006年第2期173-179,共7页
Crystals of sodium tridecafluorodizirconate Na5Zr2F13 were synthesized under mild hydrothermal conditions, and the structure was refined by single-crystal X-ray diffraction. The compound crystallizes in monoclinic wit... Crystals of sodium tridecafluorodizirconate Na5Zr2F13 were synthesized under mild hydrothermal conditions, and the structure was refined by single-crystal X-ray diffraction. The compound crystallizes in monoclinic with crystallographic data: Mr = 544.39, C2/m (No. 12), a = 11.5600(9), b = 5.4759(4), c = 8.3989(6) A°, β = 97.361(10)°, V= 527.28(7) A°^3, Z= 2, Dc = 3.429 g/cm^3, 2 = 0.71073A° ,μ = 23.48 cm^-1, F(000) = 504, T= 295 K, Ri = 0.0173 and wR2 = 0.0449 for 55 variables and 682 contributing uniqUe reflections. The crystal structure is constituted with sixand eight-fold sodium atoms, forming irregular trigonal prisms and irregular cubes, respectively. Here, the zirconium atoms are connected with seven fluorine atoms to form a mono-capped trigonal prism. [Zr2F13]^5- complex ions formed by comer-shared [ZrF7]^3- are comer- and edgeshared to [Na4F22] and [Na3F8] cages, leading to the network structure. Thermal analysis, X-ray excited luminescence and photoluminescence under UV light measurements were conducted on Na5Zr2F13 crystals. 展开更多
关键词 sodium tridecafluorodizirconate hydrothermal synthesis crystal structure LUMINESCENT
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