phosphoranyl radicals

https://doi.org/10.1351/goldbook.P04568
A tetracoordinate phosphorus species which has nine @V06588@-shell electrons R4P. .
Source:
PAC, 1995, 67, 1307. (Glossary of class names of organic compounds and reactivity intermediates based on structure (IUPAC Recommendations 1995)) on page 1359 [Terms] [Paper]