Zhang Dong, Johnsson Mats
Inorganic Chemistry, Stockholm University, S-106 91 Stockholm, Sweden.
Acta Crystallogr Sect E Struct Rep Online. 2008 Apr 26;64(Pt 5):i26. doi: 10.1107/S1600536808011252.
Single crystals of dizinc tellurium dibromide trioxide, Zn(2)(TeO(3))Br(2), were synthesized via a transport reaction in sealed evacuated silica tubes. The compound has a layered crystal structure in which the building units are [ZnO(4)Br] distorted square pyramids, [ZnO(2)Br(2)] distorted tetra-hedra, and [TeO(3)E] tetra-hedra (E being the 5s(2) lone pair of Te(4+)) joined through sharing of edges and corners to form layers of no net charge. Bromine atoms and tellurium lone pairs protrude from the surfaces of each layer towards adjacent layers. This new compound Zn(2)(TeO(3))Br(2) is isostructural with the synthetic compounds Zn(2)(TeO(3))Cl(2), CuZn(TeO(3))(2), Co(2)(TeO(3))Br(2) and the mineral sophiite, Zn(2)(SeO(3))Cl(2).
二溴三氧化二锌碲（Zn₂(TeO₃)Br₂）单晶是通过在密封抽空的石英管中进行传输反应合成的。该化合物具有层状晶体结构，其中的结构单元为[ZnO₄Br]畸变四方锥、[ZnO₂Br₂]畸变四面体以及[TeO₃E]四面体（E为Te⁴⁺的5s²孤对电子），它们通过共用棱边和顶点相连形成不带净电荷的层。溴原子和碲孤对电子从每层表面向相邻层突出。这种新化合物Zn₂(TeO₃)Br₂与合成化合物Zn₂(TeO₃)Cl₂、CuZn(TeO₃)₂、Co₂(TeO₃)Br₂以及矿物索非石Zn₂(SeO₃)Cl₂同构。
