Unusual chemical bond and spectrum of beryllium dimer in ground $X^1{\Sigma }_g^{+}$ state

A. V. Mitin, A. A. Gusev, O. Chuluunbaatar +3

This review outlines the main results which show the dual nature of the chemical bond in diatomic beryllium molecule in the ground $X^1{\Sigma }_g^{+}$ state. It has been shown that the bery…