Bonding and singlet-triplet gap of silicon trimer: Effects of protonation and attachment of alkali metal cations. - Nguyen Minh Tam; Tran Dieu Hang; Hung Tan Pham; Huyen Thi Nguyen; My Phuong Pham-Ho; Pablo A. Denis; Minh Tho Nguyen (J. Comput. Chem., 2015)