Computational note on theoretical studies of ethene-1,1,2,2-tetrayltetramethylene tetrathiocyanate

Abstract

The molecular geometry and vibrational frequencies of the title (C 10H 8N 4S 4) compound in the ground state have been calculated using the Hartree-Fock (HF) and density functional method (B3LYP) with 6-31G(d) basis set. Comparison of the observed fundamental vibrational frequencies of the title compound and calculated results by density functional B3LYP and HF methods indicate that B3LYP is superior to the scaled HF approach for molecular vibrational problems.