A photoelectron spectroscopic study of di-t-butylphosphazene

Abstract

Gaseous trans-Bu^tPNBu^t, generated by mild gas-phase thermolysis of its more stable [2 + 1] cyclodimer, has been characterized by field-ionization mass spectrometry and U.V. photoelectron spectroscopy. The photoelectron spectrum has been assigned based on SCC-Xα model calculations for representative H EEH and E₂ molecules (E₂= N₂, PN, or P₂) and by comparison with the known ionization potentials of RNNR and E₂ species. The low-energy sequence for parent dialkyldiphosphenes is deduced.