New Nickel−Antimony Carbonyl Clusters: Stereochemical Analyses of the [Ni<sub>10</sub>(SbR)<sub>2</sub>(CO)<sub>18</sub>]<sup>2</sup><sup>-</sup> Dianions (R = Me, Et, <i><sup>i</sup></i>Pr, <i><sup>t</sup></i>Bu, <i>p</i>-FC<sub>6</sub>H<sub>4</sub>) Containing Empty 1,12-Ni<sub>10</sub>Sb<sub>2</sub> Icosahedral Cages and of the Unprecedented Stibinido-Bridged 34-Electron Ni<sub>2</sub>(CO)<sub>4</sub>(μ<sub>2</sub>-Sb<i><sup>t</sup></i>Bu<sub>2</sub>)<sub>2</sub> Dimer<sup>1</sup>
作者:Peter D. Mlynek、Lawrence F. Dahl
DOI:10.1021/om960966c
日期:1997.4.1
a neutral 34-electron Ni2(CO)4(μ2-SbtBu2)2 dimer (8) containing a planar Ni2Sb2 core was isolated as a side product and structurally characterized; this dimer is the first example of a stibinido-bridged analogue of the known 34-electron Ni2(CO)4(μ2-PR2)2-type dimer. A structural/bonding analysis with other 34-, 32-, and 30-electron Ni2(μ2-ER2)2 dimers (E = P, As) containing analogous planar Ni2E2 rings