Spectroscopy of Metal Clusters

犹他大学的迈克尔·莫尔斯得到了实验物理化学计划的资助，继续用电子光谱学研究双原子和多原子过渡金属团簇的化学键和电子结构。将使用激光诱导荧光、共振双光子电离和色散荧光光谱对激光烧蚀金属的超音速膨胀进行测量。(1)一系列3d过渡金属硅化物和(2)4和5d同核过渡金属双原子的态对称性、键能、键长和振动频率。这些研究将扩展到包括铝、铜、银、Nb和硅在内的一系列金属簇合物。金属在催化中具有极其重要的应用。这项研究将获得有关双原子分子和金属原子团簇的光谱信息，以便能够确定分子的键强度和其他性质。双原子分子的性质将与使用当前理论计算的性质进行比较，而较大的团簇的性质将与大块固体的性质形成联系。

Michael Morse of the University of Utah is supported by a grant from the Experimental Physical Chemistry Program to continue his investigations of chemical bonding and electronic structure of diatomic and polyatomic transition metal clusters with electronic spectroscopy. The measurements will be made on supersonic expansions of laser ablated metals using laser induced fluorescence, resonant two photon ionization and dispersed fluorescence spectroscopies. State symmetries, bond energies and lengths and vibrational frequencies will be determined for: (1) a series of 3d transition metal silicides and (2) 4 and 5d homonuclear transition metal diatomics . The studies will be extended to include a series of metal clusters including those containing aluminum, copper, silver, niobium and silicon.Metals have extremely important applications in catalysis. This study will obtain spectroscopic information about diatomic molecules and clusters of metal atoms to enable the strengths of bonds and other properties of the molecules to be determined. The properties of the diatomic molecules will be compared with those calculated using current theories and those of the larger clusters will form a connection to the properties of the bulk solid.