title: Planar tetracoordinate carbons in cyclic hydrocarbons.
abstract: [structure: see text] A series of cyclic hydrocarbons containing a planar tetracoordinate carbon atom is proposed. To rationalize the electronic factors contributing to the stability of these molecules, an analysis of the molecular orbitals and the induced magnetic field is presented.
authors.affiliation: Departamento de Química y Biología, Universidad de las Américas-Puebla, Ex-Hda. de Sta. Catarina Mártir, A. P. 100, Cholula 72820, Puebla, México.
authors.forename: Nancy
authors.initials: N
authors.lastname: Perez
authors.forename: Thomas
authors.initials: T
authors.lastname: Heine
authors.forename: Robert
authors.initials: R
authors.lastname: Barthel
authors.forename: Gotthard
authors.initials: G
authors.lastname: Seifert
authors.forename: Alberto
authors.initials: A
authors.lastname: Vela
authors.forename: Miguel Angel
authors.initials: MA
authors.lastname: Mendez-Rojas
authors.forename: Gabriel
authors.initials: G
authors.lastname: Merino