| Abstract: | He(I) and He(II) photoelectron spectra of benzob]selenophene and benzob]tellurophene The photoelectron spectra of benzob]selenophene ( 2 ) and benzob]tellurophene ( 1 ) have been recorded with He(I) and He(II) radiation and been compared to those of benzob]thiophene ( 3 ), benzob]furan ( 4 ), indole ( 5 ) and indene ( 6 ). The first four bands are correlated with π-orbitals, of which the highest occupied one is strongly localized on the heteroatom in the case of 1 . The results are in agreement with semi-empirical PPP-calculations. |
