Zhang Dong, Johnsson Mats
Inorganic Chemistry, Stockholm University, SE-106 91 Stockholm, Sweden.
Acta Crystallogr C. 2009 Apr;65(Pt 4):i9-10. doi: 10.1107/S0108270109006817. Epub 2009 Mar 7.
Single crystals of nickel(II) divanadium(V) ditellurium(IV) decaoxide, NiV(2)Te(2)O(10), were synthesized via a transport reaction in sealed evacuated silica tubes. The compound crystallizes in the triclinic system (space group P-1). The Ni atoms are positioned in the 1c position on the inversion centre, while the V and Te atoms are in general positions 2i. The crystal structure is layered, the building units within a (010) layer being distorted VO(6) octahedra and NiO(6) octahedra. The metal-oxide layers are connected by distorted TeO(4)E square pyramids (E being the 5s(2) lone electron pair of Te(IV)) to form the framework. The structure contains corner-sharing NiO(6) octahedra, corner- and edge-sharing TeO(4)E square pyramids, and corner- and edge-sharing VO(6) octahedra. NiV(2)Te(2)O(10) is the first oxide containing all of the cations Ni(II), V(V) and Te(IV).
通过在密封抽空的石英管中进行传输反应，合成了二钒（V）二碲（IV）十氧化镍（II）单晶，即NiV₂Te₂O₁₀。该化合物结晶于三斜晶系（空间群P-1）。镍原子位于对称中心的1c位置，而钒和碲原子处于一般位置2i。晶体结构为层状，（010）层内的结构单元是畸变的VO₆八面体和NiO₆八面体。金属氧化物层通过畸变的TeO₄E四方棱锥（E为Te（IV）的5s²孤电子对）连接形成骨架。该结构包含共角的NiO₆八面体、共角和共边的TeO₄E四方棱锥以及共角和共边的VO₆八面体。NiV₂Te₂O₁₀是首个包含所有阳离子Ni（II）、V（V）和Te（IV）的氧化物。
