Spherical sila- and germa-homoaromaticity.
Guided by the 2(N + 1)2 electron-counting rule for spherical aromatic molecules, we have designed various spherical sila- and germa-homoaromatic systems rich in group 14 elements. Their aromaticity is revealed by density-functional computations of their structures and the nucleus-independent chemical shifts (NICS). Besides the formerly used endohedral inclusion strategy, spherical homoaromaticity is another way to stabilize silicon and germanium clusters.
Chen
Zhongfang
Z
Computational Chemistry Annex, The University of Georgia, Athens, GA 30602-2525, USA. chen@organik.uni-erlangen.de
Hirsch
Andreas
A
Nagase
Shigeru
S
Thiel
Walter
W
Schleyer
Paul von Ragué
Pv