Structures and electronic properties of M@Au6 (M=Al, Si, P, S, Cl, Ar) clusters: a density functional theory investigationM. Zhang, S. Chen, Q. M. Deng, L. M. He, L. N. Zhao and Y. H. LuoEur. Phys. J. D, 58 1 (2010) 117-123DOI: https://doi.org/10.1140/epjd/e2010-00040-9