Spectroscopy and Photofragmentation Dynamics of Transition Metal Cation-Organic Molecule Complexes

这项授予马萨诸塞大学的启动基金将支持Ricardo B. Metz教授的研究。主要研究过渡金属阳离子-有机分子配合物的光谱学和光破碎动力学。气相过渡金属阳离子是强大的催化剂，能够在室温下激活烷烃中的碳氢键和碳碳键。加合物是一种金属阳离子-有机分子复合物，人们对它知之甚少。本研究使用双飞行时间光碎片光谱仪来表征加合物，确定地面和低洼激发态的热化学和键合。然后利用这些信息来控制加合物中的反应途径。这项研究将有助于对气相金属离子化学的基本见解，使设计更有效的非均相催化剂成为可能。

This starter grant award to the University of Massachusetts will support the research of Professor Ricardo B. Metz. The research focusses on spectroscopy and photofragmentation dynamics of transition metal cation-organic molecule complexes. Gas-phase transition metal cations are powerful catalysts, able to activate carbon-hydrogen and carbon-carbon bonds in alkanes at room temperature. Very little is known about the adduct, a metal cation-organic molecule complex. The present research uses a dual time-of-flight photofragment spectrometer to characterize the adducts, determining the thermochemistry and bonding of the ground and low-lying excited electronic states. The information is then used to control reaction pathways in the adduct. This research will contribute fundamental insights into gas-phase metal ion chemistry toward the goal of enabling design of more effective heterogeneous catalysts.