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

using model chemistry: TPSSh/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at TPSSh/6-31G(2df,p)
 hartrees
Energy at 0K-132.733108
Energy at 298.15K-132.735499
HF Energy-132.733108
Nuclear repulsion energy59.925033
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 TPSSh/6-31G(2df,p)
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 3045 2939 18.08      
2 A1 2213 2136 119.01      
3 A1 1460 1409 7.15      
4 A1 957 924 11.24      
5 E 3125 3015 8.43      
5 E 3125 3015 8.43      
6 E 1501 1449 7.53      
6 E 1501 1449 7.53      
7 E 1151 1111 0.08      
7 E 1151 1111 0.08      
8 E 278 268 0.26      
8 E 278 268 0.26      

Unscaled Zero Point Vibrational Energy (zpe) 9892.4 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 9546.2 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 TPSSh/6-31G(2df,p)
ABC
5.26926 0.33476 0.33476

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/6-31G(2df,p)

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 0.311
C3 0.000 0.000 1.484
H4 0.000 1.029 -1.477
H5 0.891 -0.514 -1.477
H6 -0.891 -0.514 -1.477

Atom - Atom Distances (Å)
  C1 N2 C3 H4 H5 H6
C11.42072.59371.09261.09261.0926
N21.42071.17302.06322.06322.0632
C32.59371.17303.13503.13503.1350
H41.09262.06323.13501.78201.7820
H51.09262.06323.13501.78201.7820
H61.09262.06323.13501.78201.7820

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 109.666
N2 C1 H5 109.666 N2 C1 H6 109.666
H4 C1 H5 109.275 H4 C1 H6 109.275
H5 C1 H6 109.275
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability