title: Characterization of pentacarbonyl(4-methylpyridine)chromium(0) complex using density functional theory (DFT) and Hartree-Fock (HF) computational methods.
abstract: The optimized molecular structure, atomic charges, vibrational frequencies, thermodynamic properties, nuclear magnetic resonance (NMR) and ultraviolet-visible (UV-Vis) spectral data of pentacarbonyl(4-methylpyridine)chromium(0) complex have been investigated by performing ab initio Hartree-Fock (HF) and density functional theory, B3LYP, B3PW91 and BE1PBE methods with 6-311G, 6-311+G(3d,3p) and 6-31G(d,p) basis set. The calculated NMR data at 6-311G basis set, vibrational frequencies at 6-311+G(3d,3p) basis set and the optimized geometric bond lengths and bond angles at 6-31G(d,p) basis set are in good agreement with the corresponding experimental values. The highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) have been simulated. In addition, the transition state and energy band gap and infrared intensities have also been reported.
authors.affiliation: Department of Chemistry, Abant İzzet Baysal University, 14280 Bolu, Turkey. morkan_i@ibu.edu.tr
authors.forename: Izzet Amour
authors.initials: IA
authors.lastname: Morkan
authors.forename: Ayşe Uztetik
authors.initials: AU
authors.lastname: Morkan
mesh_terms: D002857:Chromium / Q000737:chemistry*; D003198:Computer Simulation; D009682:Magnetic Resonance Spectroscopy; D008956:Models, Chemical; D008962:Models, Theoretical; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000737:chemistry*; D010847:Picolines / Q000737:chemistry*; D013055:Spectrophotometry, Infrared; D014732:Vibration
chemical_list: D009942:Organometallic Compounds; D010847:Picolines; D002857:Chromium; C515325:4-methylpyridine