Structure and stability of small Li2+(X2Σ+g)-Xen (n = 1–6) clusters Sameh Saidi, Chedli Ghanmi and Hamid Berriche Eur. Phys. J. D, 68 4 (2014) 80 Published online: 23 April 2014 DOI: 10.1140/epjd/e2014-40217-6