The electronic structure of di-t-butyl-chloro-phosphine [(t-butyl)(2)P
Cl] has been studied by photoemission spectroscopy (PES). The photoemi
ssion spectrum for di-t-butyl-chloro-phosphine exhibit features in goo
d agreement with molecular orbitals assigned by modified neglect of di
fferential overlap (MNDO) semiempirical calculations.