1.
Phys Chem Chem Phys
; 14(43): 14764-8, 2012 Nov 21.
Article
in English
| MEDLINE
| ID: mdl-22532176
ABSTRACT
A series of clusters with the general formula CBe(5)E(-) (E = Al, Ga, In, Tl) are theoretically shown to have a planar pentacoordinate carbon atom. The structures show a simple and rigid topological framework-a planar EBe(4) ring surrounding a C center, with one of the ring Be-Be bonds capped in-plane by a fifth Be atom. The system is stabilized by a network of multicenter σ bonds in which the central C atom is the acceptor, and π systems as well by which the C atom donates charge to the Be and E atoms that encircle it.
2.
Chem Commun (Camb)
; 46(46): 8776-8, 2010 Dec 14.
Article
in English
| MEDLINE
| ID: mdl-20963212
ABSTRACT
Theoretical evidence for the first neutral and anionic global-minimum structures possessing a planar pentacoordinate carbon is reported.