Spectroscopic study on the reactive transition-metal species developed by the chemical sputtering method at very low temperature

利用化学溅射法在极低温度下生成的活性过渡金属物种，通过毫米波光谱观察其物理化学性质。我们主要研究了以下几种类型的催化剂：（1）过渡金属单硫化物和单氢硫化物，它们是硫代稳定的金属纳米簇的第一模型;（2）过渡金属单乙酰化物，它们是最简单的有机金属化合物;（3）10族金属单卤化物，它们是10族金属催化剂上单键的最简单模型。对这些化合物的分子结构、成键特征、未成对电子分布等物理化学性质进行了详细的研究。

Reactive transition-metal species, which were generated by the chemical sputtering method at very low temperature, were observed by millimeter-wave spectroscopy to reveal their physico-chemical properties. We mainly studied on the following species, (1) transition-metal monosulfides and monohydrosulfides as the first model for the thiorate-stabilized metal-nanocluster, (2) transition-metal monoacetilides as the simplest organometallics, (3) the group-10-metal monohalides as the simplest model for the single bond on the group-10-metalic catalyst. For these species, the physico-chemical properties, such as molecular structure, bond character, and unpaired electron distribution, were explored in detail.