Photoelectron studies of boron compouds. Part 5.—Higher boron hydrides B4H10, B5H9 and B10H14

Abstract

The He I and He II photoelectron (p.e.) spectra of the title compounds are reported. Ab initio SCF-MO calculations have been carried out on diborane, pentaborane(9) and tetraborane(10) using a double zeta basis of Slater-type orbitals. Assignment of the spectra is made with the aid of these calculations and by correlation with the spectrum of diborane. The p.e. spectrum of pentaborane (9) shows marked differences from one previously reported.