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

using model chemistry: CCD/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at CCD/cc-pVDZ
 hartrees
Energy at 0K-132.340439
Energy at 298.15K-132.342813
HF Energy-131.903433
Nuclear repulsion energy59.534488
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 CCD/cc-pVDZ
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 3093 2959 20.40      
2 A1 2267 2169 119.31      
3 A1 1465 1401 10.30      
4 A1 988 946 17.90      
5 E 3189 3051 6.60      
5 E 3189 3051 6.60      
6 E 1495 1430 8.69      
6 E 1495 1430 8.69      
7 E 1153 1103 0.27      
7 E 1153 1103 0.27      
8 E 267 255 0.30      
8 E 267 255 0.30      

Unscaled Zero Point Vibrational Energy (zpe) 10009.9 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 9576.5 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 CCD/cc-pVDZ
ABC
5.17870 0.33055 0.33055

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/cc-pVDZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.117
N2 0.000 0.000 0.313
C3 0.000 0.000 1.495
H4 0.000 1.038 -1.487
H5 0.899 -0.519 -1.487
H6 -0.899 -0.519 -1.487

Atom - Atom Distances (Å)
  C1 N2 C3 H4 H5 H6
C11.42982.61201.10151.10151.1015
N21.42981.18222.07732.07732.0773
C32.61201.18223.15723.15723.1572
H41.10152.07733.15721.79721.7972
H51.10152.07733.15721.79721.7972
H61.10152.07733.15721.79721.7972

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 109.615
N2 C1 H5 109.615 N2 C1 H6 109.615
H4 C1 H5 109.327 H4 C1 H6 109.327
H5 C1 H6 109.327
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability