摘要: Publisher Summary This chapter begins by remarking how a real landmark of chemistry low-coordinated phosphorus compounds was set when Markl reported in 1966 the successful preparation triphenylphosphinine from reaction between source PH3 and corresponding pyrylium salt. discovery also pointed out that concept aromaticity could include higher main group elements. Recommended reading for further information includes works Markl, Bickelhopt Jongsma, Ashe, Dimroth, Hewitt, Mathey. The nomenclature is then discussed. Theoretical methods are explained detail. Experimental structural on X-ray diffraction, spectroscopy, spectrometry, dipole moments, cyclic volammetry. Thermodynamic aspects explore physical properties thermal stability, basicity. Reactivity phosphinines enumerates various reactions at P atom, P=C double-bond, carbon atoms. Ring syntheses described, particular types considered. offers some perspectives phosphinine chemistry.