Reactions of 1-ethyl-1,2-diphosphole with acetylenes

Generation and direct EPR spectroscopic observation of triplet arylphosphinidenes: stabilisation versus internal rearrangements

Phosphinidene – to be or not to be: only the arylphosphinidenes with relatively small ortho-substituents are kinetically stable. EPR spectra of such stabilized intermediates have been detected for the first time.

The EPR Spectrum of Triplet Mesitylphosphinidene: Reassignment and New Assignment

Low-temperature UV-photolysis of mesitylphosphiranes under highly anaerobic conditions leads to the formation of the triplet mesitylphosphinidene (MesP). The recorded X-band EPR spectrum of triplet MesP and the derived zero-field splitting parameter D=4.116 cm^-1 differ significantly from those reported previously for this intermediate. New magnetic parameters of mesitylphosphinidene are discussed along with the results of DFT calculations.