Issue 6, 2015

Planar pentacoordinate carbons in CBe54− derivatives

Abstract

The potential energy surfaces of a series of clusters with formula CBe5Linn−4 (n = 1 to 5) have been systematically explored. Our computations show that the lithium cations preserve the CBe54− pentagon, such that the global minimum structure for these series of clusters has a planar pentacoordinate carbon (ppC) atom. The systems are primarily connected via a network of multicenter σ-bonds, in which the C atom acts as σ-acceptor and this acceptance of charge is balanced by the donation of the 2pz electrons to the π-cloud. The induced magnetic field analysis suggests that the clusters with formula CBe5Linn−4 (n = 1 to 5) are fully delocalized. The fact that these ppC-containing clusters are the lowest-energy forms on the corresponding potential energy surfaces raises expectations that these species can be prepared experimentally in the gas phase.

Graphical abstract: Planar pentacoordinate carbons in CBe54− derivatives

Supplementary files

Article information

Article type
Paper
Submitted
04 Dec 2014
Accepted
06 Jan 2015
First published
07 Jan 2015

Phys. Chem. Chem. Phys., 2015,17, 4620-4624

Author version available

Planar pentacoordinate carbons in CBe54− derivatives

R. Grande-Aztatzi, J. L. Cabellos, R. Islas, I. Infante, J. M. Mercero, A. Restrepo and G. Merino, Phys. Chem. Chem. Phys., 2015, 17, 4620 DOI: 10.1039/C4CP05659K

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