The CO–CO interactions in transition‐metal hexacarbonyls studied by Penning ionization electron spectroscopy: Cr(CO)6, Mo(CO)6, and W(CO)6
The CO–CO interactions in transition‐metal hexacarbonyls studied by Penning ionization electron spectroscopy: Cr(CO)6, Mo(CO)6, and W(CO)6
复制标题
通过潘宁电离电子能谱研究过渡金属六羰基化合物中的 CO-CO 相互作用：Cr(CO)6、Mo(CO)6 和 W(CO)6
DOI：
10.1063/1.462051
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发表时间：
1992
影响因子：
4.4
通讯作者：
Y. Harada
中科院分区：
文献类型：
--
作者：
S. Masuda;Y. Harada
测量了He*（2 3S）亚稳原子与气态Cr（CO）6、Mo（CO）6和W（CO）6热碰撞产生的Penning电离电子谱，以探测CO-CO相互作用. CO 5σ-衍生能级的能量分裂[I. P.（8a1g）−I.P.（8 t1 u）]的测定。此外，光谱表明，CO 5σ轨道之间的空间相互作用不仅稳定了CO 5σ衍生的8a 1g分子轨道的轨道能量，而且还产生了扩散电子分布。将过渡金属（TM）羰基化合物中的CO-CO相互作用与TM表面上形成的CO覆盖层中的CO-CO相互作用进行比较。
Penning ionization electron spectra resulting from thermal collisions of He*(2 3S) metastable atoms with gaseous Cr(CO)6, Mo(CO)6, and W(CO)6 were measured to probe the CO–CO interactions. The energy splitting of the CO 5σ‐derived levels [I.P.(8a1g)−I.P.(8t1u)] was determined for the first time. Further, the spectra show that the through‐space interaction among the CO 5σ orbitals not only stabilizes the orbital energy of the CO 5σ‐derived 8a1g molecular orbital, but also gives rise to a diffuse electron distribution. The CO–CO interactions in the transition‐metal (TM) carbonyls were compared to those in the CO overlayer formed on TM surfaces.