title: Accurate ab initio calculations of the ground states of FeC, FeC(+), and FeC(-).
abstract: For the ground states of the diatomic carbide FeC(X (3)Delta) and its ions, FeC(+)(X (2)Delta) and FeC(-)(X (2)Delta), we report on accurate multireference variational ab initio results employing augmented correlation consistent basis sets of quintuple cardinality. The dissociation energies and bond lengths are found to be D(0) (0)=87+/-1, 95.2, and 84+/-1 kcal/mol at r(e)=1.581, 1.556, and 1.660 A for FeC, FeC(+), and FeC(-), respectively. All our final numbers are in agreement with the available experimental data.
authors.affiliation: Theoretical and Physical Chemistry Institute, National Hellenic Research Foundation, 48 Vassileos Constantinou Ave., Athens 116 35, Greece.
authors.forename: Demeter
authors.initials: D
authors.lastname: Tzeli
authors.forename: Aristides
authors.initials: A
authors.lastname: Mavridis