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All results from a given calculation for CH3NC (methyl isocyanide)

using model chemistry: CID/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at CID/6-311G*
 hartrees
Energy at 0K-132.314045
Energy at 298.15K-132.316486
Nuclear repulsion energy60.200966
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at CID/6-311G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3149 2926 19.11      
2 A1 2338 2172 152.70      
3 A1 1525 1416 4.27      
4 A1 1003 932 22.74      
5 E 3237 3008 8.32      
5 E 3237 3008 8.32      
6 E 1558 1448 11.46      
6 E 1558 1448 11.46      
7 E 1197 1112 0.22      
7 E 1197 1112 0.22      
8 E 289 268 0.85      
8 E 289 268 0.85      

Unscaled Zero Point Vibrational Energy (zpe) 10288.8 cm-1
Scaled (by 0.9291) Zero Point Vibrational Energy (zpe) 9559.3 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at CID/6-311G*
ABC
5.31282 0.33719 0.33719

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/6-311G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.109
N2 0.000 0.000 0.314
C3 0.000 0.000 1.478
H4 0.000 1.024 -1.471
H5 0.887 -0.512 -1.471
H6 -0.887 -0.512 -1.471

Atom - Atom Distances (Å)
  C1 N2 C3 H4 H5 H6
C11.42302.58641.08651.08651.0865
N21.42301.16342.05812.05812.0581
C32.58641.16343.12133.12133.1213
H41.08652.05813.12131.77441.7744
H51.08652.05813.12131.77441.7744
H61.08652.05813.12131.77441.7744

picture of methyl isocyanide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 C3 180.000 N2 C1 H4 109.464
N2 C1 H5 109.464 N2 C1 H6 109.464
H4 C1 H5 109.479 H4 C1 H6 109.479
H5 C1 H6 109.479
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability