Zero electron kinetic energy photoelectron spectroscopy and density functional calculations of Al-P(CH₃)₃ and Al-As(CH₃)₃

Electronic spectra of aluminum-trimethylphosphine and trimethylarsine was obtained using pulsed field ionization zero electron kinetic energy (ZEKE) photoelectron spectroscopy. Density functional calculations on equilibrium geometries, vibrational frequencies and metal-ligand bond dissociation energies for the two complexes and their ions were also performed. The spectra exhibited vibrational progressions arising from the intermolecular and molecular vibrations.