Single and multiple photon ionization of triethylamine

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Abstract
Single and multiple photonionizationphotoelectron spectroscopy of triethylamine (TEA) was studied using a newly developed high‐resolution electron spectrometer which utilizes position sensitive detection. The adiabatic ionization potential of TEA was accurately determined using both single (7.47±0.04 eV) and multiphoton (7.53±0.10 eV) ionizationphotoelectron spectroscopy. Although excitation to both the S 1 and S 2 states can occur, multiphoton ionization always occurs out of the S 1 state. When the cation dissociates, the distribution of photoelectron energies similarly reflects this partitioning between S 1 and S 2.