title: A theoretical study on 1-(thiophen-2-yl-methyl)-2-(thiophen-2-yl)-1H-benzimidazole.
abstract: The molecular geometry and vibrational frequencies of 1-(thiophen-2-yl-methyl)-2-(thiophen-2-yl)-1H-benzimidazole (C(16)H(12)N(2)S(2)) in the ground state has been calculated using the Hartree-Fock (HF) and density functional method (B3LYP) with 6-31G(d) basis set. The optimized geometric bond lengths and bond angles obtained by using HF and DFT (B3LYP) show the best agreement with the experimental data. Comparison of the observed fundamental vibrational frequencies of 1-(thiophen-2-yl-methyl)-2-(thiophen-2-yl)-1H-benzimidazole (C(16)H(12)N(2)S(2)) and calculated results by density functional B3LYP and Hartree-Fock methods indicate that B3LYP is superior to the scaled Hartree-Fock approach for molecular vibrational problems.
authors.affiliation: Firat University, Faculty of Arts and Sciences, Department of Chemistry, Elazig, Turkey.
authors.forename: M
authors.initials: M
authors.lastname: Sekerci
authors.forename: Y
authors.initials: Y
authors.lastname: Atalay
authors.forename: F
authors.initials: F
authors.lastname: Yakuphanoglu
authors.forename: D
authors.initials: D
authors.lastname: Avci
authors.forename: A
authors.initials: A
authors.lastname: Başoğlu
mesh_terms: D001562:Benzimidazoles / Q000737:chemistry*; D008432:Mathematical Computing; D008956:Models, Chemical; D015394:Molecular Structure; D013876:Thiophenes / Q000737:chemistry*; D014732:Vibration
chemical_list: C522623:1-(thiophen-2-ylmethyl)-2-(thiophen-2-yl)-1H-benzimidazole; D001562:Benzimidazoles; D013876:Thiophenes