Spectroscopy and Imaging of Organometallic Radicals

Grants and Contracts Details


This proposal outlines the activity on the spectroscopic and imaging characterization of organometallic radicals formed in metal-mediated hydrocarbon activation reactions in the gas phase. Organometallic radicals containing heavy elements are poorly understood, yet are of great importance in organic and organometallic synthesis and homogeneous catalysis. Emphasis is placed on the reactions between lanthanide metals and small alkanes, alkenes, and alkynes. The main results are the accurate ionization energies, metal-ligand and ligand-based vibrational frequencies, electronic states, chemical bonding, and molecular structures of these species. The approach is the systematic examination of the identify and electron configuration effects of the metal elements and reactivity-structural relationships of the linear, branched, and cyclic hydrocarbons. The experimental methods include the laser-assisted molecular beam synthesis, time-of-flight mass spectrometry, mass-analyzed threshold ionization, zero-electron-kinetic-energy, infrared-ultraviolet photoionization spectroscopy, and photoelectron velocity-map imaging. The experimental measurements are supplemented with quantum chemical calculations and spectral simulations.
Effective start/end date8/1/147/31/19


  • National Science Foundation: $439,000.00


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