title: Structures and stability of B-doped Al clusters: AlnB and AlnB2 (n=1-7).
abstract: Various structural possibilities for Al(n)B(m) (n=1-7, m=1-2) neutral isomers were investigated using B3LYP6-311G(d) and CCSD(T)6-311G(d) methods. Our calculations predicted the existence of a number of previously unknown isomers. The B atom favors to locate over/inside of all clusters in this series. All structures of the Al(n)B (n=2-7) may be derived from capping/putting a B atom over/inside the Al(n) cluster. All Al(n)B(2) (n=1-5) may be understood as two substitutions of Al atoms by B atoms in the Al(n+2) molecule. The strong B-B bond is a dominant factor in the building-up principle of mixed Al(n)B(2) neutral clusters. The second difference in energy showed that the Al(n)B(m) clusters with even n+m are more stable than those with odd n+m. Our results and analyses revealed that the mixed Al-B clusters exhibit aromatic behaviors.
authors.affiliation: College of Electronics and Electrical Engineering, Shaanxi University of Science and Technology, Xianyang 712000, People's Republic of China. jiang_mater@yahoo.com
authors.forename: Zhen-Yi
authors.initials: ZY
authors.lastname: Jiang
authors.forename: Cheng-Jun
authors.initials: CJ
authors.lastname: Yang
authors.forename: Sheng-Tao
authors.initials: ST
authors.lastname: Li