Hector Andrew L, Levason William, Reid Gillian, Reid Stuart D, Webster Michael
School of Chemistry, University of Southampton, Southampton SO17 1BJ, England.
Acta Crystallogr Sect E Struct Rep Online. 2008 Apr 16;64(Pt 5):m667. doi: 10.1107/S1600536808009574.
The structure of the title compound, [Zr(C(5)H(5))(2)(C(9)H(11)Te)(2)], consists of a zirconium(IV) centre bonded to two η(5)-coord-inated cyclo-penta-dienyl groups and two mesityltellurolate ligands; the discrete mol-ecule has crystallographic twofold rotation symmetry. The structural parameters compared with those in [(η(5)-Me(5)Cp)(2)Zr(TePh)(2)] [Howard, Trnka & Parkin (1995 ▶). Inorg. Chem.34, 5900-5909] show that the greater steric demands of the bulky mesityl substituents are accommodated by widening Te-Zr-Te (∼8°) and by more acute Zr-Te-C (∼5°) angles, although the Zr-Te distances are essentially the same. The crystal studied exhibited some inversion twinning.
标题化合物[Zr(C₅H₅)₂(C₉H₁₁Te)₂]的结构由一个与两个η⁵配位的环戊二烯基以及两个均三甲苯基碲醇盐配体相连的锆(IV)中心组成；该离散分子具有晶体学二重旋转对称性。与[(η⁵-Me₅Cp)₂Zr(TePh)₂] [Howard, Trnka & Parkin (1995 ▶). Inorg. Chem.34, 5900 - 5909]中的结构参数相比，尽管Zr-Te距离基本相同，但较大体积的均三甲苯基取代基的更大空间需求通过扩大Te-Zr-Te（约8°）以及减小Zr-Te-C（约5°）角度来适应。所研究的晶体表现出一些反转孪晶。
