title: A template for a planar tetracoordinate heavier group 14 atom: a global study of C2Si2X(q) (X = C, Si, Ge, Sn, Pb; q = +1, 0, -1).
abstract: Through a global isomeric study, we computationally identified the first structural template C2Si2X that could encompass a planar tetracoordinate X for all the heavier group 14 elements X in the 0, +1 or -1 charge state. We thus significantly expanded the traditional 16/17/18ve rules to 19/20/21ve for ptX.
authors.affiliation: Institute of Theoretical Chemistry, Jilin University, Changchun 130023, People's Republic of China. yhdd@jlu.edu.cn.
authors.forename: Jing-jing
authors.initials: JJ
authors.lastname: Sui
authors.affiliation: Institute of Theoretical Chemistry, Jilin University, Changchun 130023, People's Republic of China. yhdd@jlu.edu.cn.
authors.forename: Jing
authors.initials: J
authors.lastname: Xu
authors.affiliation: Institute of Theoretical Chemistry, Jilin University, Changchun 130023, People's Republic of China. yhdd@jlu.edu.cn.
authors.forename: Yi-hong
authors.initials: YH
authors.lastname: Ding