Kalpana, A.; Akilandeswari, L. Structural and Electronic Effects of Cation Binding (Li+, Na+, K+, Mg2+ and Ca2+) to the π System of the (ƞ6-benzene)–Cr(CO)3 Complex: A Theoretical Study. J. Serb. Chem. Soc. 2017, 82, 1123-1134.