Structural studies of rutile-type metal dioxides
Structural studies of rutile-type metal dioxides
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DOI：
10.1107/s0108768197001468
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发表时间：
1997-06-01
影响因子：
1.9
通讯作者：
Howard, CJ
中科院分区：
文献类型：
--
作者：
Bolzan, AA;Fong, C;Howard, CJ
用Rietveld精修方法从中子衍射粉数据重新确定了GeO_2、SnO_2、RuO_2和IrO_2四种金属氧化物(锗、锡、Ru和IrO_2)的结构。四种氧化物均为金红石型结构，空间群为P4(2)/mnm(NO.136)，a=4.4066(1)，4.7374(1)，4.4968(2)和4.5051(3)，c=2.8619(1)，3.1864(1)，3.1049(1)和3.1586(2)Angstrom，x=0.3060(1)，0.3056(1)，0.3053(1)和0.3077(3)。将这些结果与其他金红石型结构的金属氧化物的结果进行了比较，描述了一系列金红石型结构的11种金属氧化物的结构振动和热振动的趋势。
The structures of the four metal dioxides GeO2, SnO2, RuO2 and IrO2 (germanium, tin, ruthenium and iridium dioxides, respectively) have been redetermined by Rietveld refinement from neutron diffraction powder data. The four dioxides all adopt the rutile-type structure, space group P4(2)/mnm (no. 136), with a = 4.4066(1), 4.7374(1), 4.4968(2) and 4.5051(3), c = 2.8619(1), 3.1864(1), 3.1049(1) and 3.1586 (2) Angstrom, and x = 0.3060(1), 0.3056(1), 0.3053(1) and 0.3077(3), respectively. These results are compared with those for other metal dioxides that adopt the rutile structure and trends in structural and thermal vibrations for a series of 11 metal dioxides which adopt the rutile-type structure are described.