Department of Chemistry and Waterloo Institute of Nanotechnology, University of Waterloo, Waterloo, Ontario, Canada N2L 3G1.
Inorg Chem. 2012 May 7;51(9):5299-304. doi: 10.1021/ic300239c. Epub 2012 Apr 18.
The telluride Ba(2)Cu(7-x)Te(6) was synthesized from the elements in stoichiometric ratios, heated to 1073 K, followed by slow cooling to 873 K over 120 h. Ba(2)Cu(7-x)Te(6) crystallizes in space group P2(1)/m with lattice dimensions of a = 6.8591(7) Å, b = 12.1439(12) Å, c = 9.0198(9) Å, β = 110.7509(14)°, V = 702.58(12) Å(3), and Z = 2. The structure is comprised of Cu atoms forming a six-membered ring and triangles, interconnected to an infinite ribbon of Cu atoms. The ribbons are connected to each other via Cu-Te bonds to yield a three-dimensional structure, wherein each Cu atom is tetrahedrally coordinated by four Te atoms. A special feature of this telluride is the occurrence of a quasi-linear Te atom chain, which causes one-dimensional metallic properties, in accordance with electronic structure calculations and property measurements.
碲化钡（2）铜（7-x）六（6）是从元素在化学计量比合成，加热至 1073 K，随后缓慢冷却至 873 K 超过 120 h。Ba(2)Cu(7-x)Te(6)在空间群 P2(1)/m 中结晶，晶格尺寸为 a = 6.8591(7) Å，b = 12.1439(12) Å，c = 9.0198(9) Å，β = 110.7509(14)°，V = 702.58(12) Å(3)，Z = 2。结构由 Cu 原子形成的六元环和三角形组成，相互连接成 Cu 原子的无限带。这些带通过 Cu-Te 键相互连接，形成三维结构，其中每个 Cu 原子被四个 Te 原子四面体配位。这种碲化物的一个特殊特征是准线性 Te 原子链的出现，这导致了一维金属性质，符合电子结构计算和性质测量。
