Sulfur trioxide Molecule Thermodynamics Molecular Orbitals Vibrational Frequencies Polarity and Solvation Molecule Viewer Calculate Calculate Vibrational Frequencies Vibration Vectors Balls 1 401.45 cm-1 View 2 401.51 cm-1 View 3 420.63 cm-1 View 4 773.26 cm-1 View 5 1071.92 cm-1 View 6 1072.04 cm-1 View Calculate