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首页> 外文期刊>Zeitschrift fur Anorganische und Allgemeine Chemie >Synthesis and Crystal Structure of Ti_(12)Sn_3O_(10) - a Low Valent Oxide of Titanium with an Oxidic Network and Intermetallic 'Islands'
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Synthesis and Crystal Structure of Ti_(12)Sn_3O_(10) - a Low Valent Oxide of Titanium with an Oxidic Network and Intermetallic 'Islands'

机译:Ti_(12)Sn_3O_(10)-具有氧化网络和金属互化物“岛”的低价钛氧化物的合成及晶体结构

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摘要

The new ternary compound Ti_(12)Sn_3O_(10) is obtained by the reaction of Ti, TiO_2 and Sn at 1500 deg C. According to the single crystal structure analysis (cubic, space group Fm3m, a = 13.5652(9) A, Z = 8, wR_2(I) = 0.048, R_1(F) = 0.020) the air stable compound represents a new structure type combining structural features of oxides and intermetallics. While tin is surrounded only by titanium the five different Ti atoms have oxidic and metallic coordination spheres as well, explaining the quite low averaged oxidation number. The crystal structure is characterized by a threedimensional net of Ti_4O-tetrahedra and trigonal bipyramides Ti_5O. In the voids there are intermetallic "islands" of a composition Ti_(33)Sn_6 with a diameter of about 10 A.
机译:Ti,TiO_2和Sn在1500℃下反应制得新的三元化合物Ti_(12)Sn_3O_(10)。根据单晶结构分析(立方,空间群Fm3m,a = 13.5652(9)A, Z = 8,wR_2(I)= 0.048,R_1(F)= 0.020),这种空气稳定的化合物代表了一种结合氧化物和金属间化合物结构特征的新型结构类型。尽管锡仅被钛包围,但五个不同的Ti原子也具有氧化和金属配位球,这说明平均氧化值非常低。晶体结构的特征是Ti_4O-四面体和三角双锥体Ti_5O的三维网。在空隙中,存在着直径约为10 A的Ti_(33)Sn_6成分的金属间“岛”。

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