Structural and electronic properties of Al7I n (n =1,2,3)

Abstract: Based on the density functional theory with gradient corrected exchange–correlation potential, we have studied the atomic structures and electronic properties of Al7I N (N =1,2,3) and Al13I clusters. The atomic structure of Al7 is not significantly changed by doping three iodine atoms. However, the adsorption positions of iodine atoms are dependent on the charge state of Al7I n cluster. Analyzes of the electronic structure of cluster shows that some of the electrons are transferred to iodine atom, although most electrons in the highest occupied molecular orbits distribute around the aluminum atoms. [Copyright &y& Elsevier]