The band gaps and electronic structure of un doped fi lms of molecular icosahedra of closo-1-phospha-2 carbadodecaborane (1,2-PCB10H11) are reported. 1,2-PCB10H11 adsorbs on Au and Ag substrates to generate mo lecular thin fi lms with the Fermi level(chemical potential) placed closer to the lowest unoccupied molecular orbital than has been observed with closo-1,2-dicarbadodecaborane (1,2-C2B10H...

The He I photoelectron (PE) spectra of stilbene (1), 2,2'-dichlorostilbene (2) 2-amino-2'-chlorostilbene (3), 2,2'-diaminostilbene (4) ,and 2,2'-dinitrostilbene (5), all in their trans configuration are recorded and discussed. The electronic structure of 1-5 can well be described on the basis of the composite molecule method and simple Hiickel molecular orbital (HMO) calculations. Results indic...