TY - JOUR TI - Electronic structure of vanadium oxide. Neutral and charged species, VO0,± AU - Miliordos, E. AU - Mavridis, A. JO - JOURNAL OF PHYSICAL CHEMISTRY A : MOLECULES, SPECTROSCOPY, KINETICS, ENVIROMENT & GENERAL THEORY (THE) PY - 2007 VL - 111 TODO - 10 SP - 1953-1965 PB - SN - 1089-5639 TODO - 10.1021/jp067451b TODO - Binding energy; Electronic structure; Ground state; Ionic strength; Molecular structure; Potential energy, Coupled cluster methods; Multireference; Vanadium oxide, Vanadium compounds TODO - The diatomic molecule vanadium oxide, VO, and its charged species VO + and VO- were studied by multireference and coupled cluster methods in conjunction with large basis sets. The investigation of 22 states and the construction of 21 full potential energy curves allowed for a detailed understanding of the electronic structure of these species. Our best binding energies for the ground states of VO (X4Σ-), VO+ (X3Σ-), and VO- (X 3Σ-) were De = 150, 138, and 143 kcal/mol, respectively, in harmony with the corresponding experimental values. For both species VO and VO+ and for all states studied, the bonding showed a strong ionic character conforming to the models V+O - and V2+O-. © 2007 American Chemical Society. ER -