A new phase in the TiAgTe system: crystal structure of Tl2Ag16Te11
A new phase in the TiAgTe system: crystal structure of Tl2Ag16Te11
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TiAgTe体系中的新相：Tl2Ag16Te11晶体结构
DOI：
10.1016/0925-8388(92)90508-7
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发表时间：
1992
影响因子：
6.2
通讯作者：
J. Tedenac
中科院分区：
文献类型：
--
作者：
D. Paccard;L. Paccard;G. Brun;J. Tedenac
在Tl-Ag-Te三元体系中发现了一个新相。单晶的X射线衍射检查被用来确定Tl_2Ag_16Te_（11+）的晶体结构。六方晶系空间群为R3 c，晶格参数area=1.1442（3）nm，c=4.1971（5）nm，Z = 6.该结构被描述为一个由银和碲原子组成的大的六方通道的三维阵列，其中含有线性原子链.这些通道平行于结晶轴。每个通道都由以铊原子为中心的六棱柱和以碲为中心的银八面体组成。细化表明部分占据所有银位置。
A new phase in the ternary Tl AgTe system has been identified. X-ray diffraction examination of single crystals was used to establish the crystal structure of Tl2Ag16Te11+. The hexagonal space group isR3cand the lattice parameters area=1.1442(3) nm,c=4.1971(5) nm andZ=6.The structure is described as a three-dimensional array of large hexagonal channels of silver and tellurium atoms hosting linear chains of atoms. These channels are parallel to the crystallographiccaxis. Each channel is built up with hexagonal prisms centred by thallium atoms and with tellurium-centred silver octahedra. The refinement indicates partial occupation of all silver positions.