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All results from a given calculation for CH3NCO (methylisocyante)

using model chemistry: MP2=FULL/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes Cs 1A'
Energy calculated at MP2=FULL/Def2TZVPP
 hartrees
Energy at 0K-207.699034
Energy at 298.15K 
HF Energy-206.875767
Nuclear repulsion energy104.042879
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 MP2=FULL/Def2TZVPP
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3198 3198 8.67 66.57 0.67 0.80
2 A' 3090 3090 42.14 178.40 0.01 0.02
3 A' 2373 2373 935.43 0.99 0.06 0.11
4 A' 1525 1525 4.96 5.18 0.52 0.68
5 A' 1486 1486 14.67 11.89 0.42 0.59
6 A' 1468 1468 32.87 25.84 0.23 0.38
7 A' 1171 1171 19.83 1.46 0.63 0.78
8 A' 892 892 25.28 16.08 0.16 0.28
9 A' 643 643 25.37 0.43 0.74 0.85
10 A' 178 178 19.26 2.05 0.69 0.82
11 A" 3172 3172 12.26 59.82 0.75 0.86
12 A" 1530 1530 6.78 10.16 0.75 0.86
13 A" 1150 1150 0.09 0.93 0.75 0.86
14 A" 594 594 17.19 0.42 0.75 0.86
15 A" 62 62 1.85 1.10 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 11266.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 11266.7 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 MP2=FULL/Def2TZVPP
ABC
2.58294 0.14592 0.14178

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.353 1.083 0.000
N2 0.000 0.596 0.000
C3 -0.561 -0.470 0.000
O4 -1.232 -1.438 0.000
H5 1.334 2.165 0.000
H6 1.883 0.744 0.884
H7 1.883 0.744 -0.884

Atom - Atom Distances (Å)
  C1 N2 C3 O4 H5 H6 H7
C11.43792.46473.61071.08241.08541.0854
N21.43791.20502.37842.05892.08562.0856
C32.46471.20501.17793.24542.86852.8685
O43.61072.37841.17794.42313.90453.9045
H51.08242.05893.24544.42311.76181.7618
H61.08542.08562.86853.90451.76181.7690
H71.08542.08562.86853.90451.76181.7690

picture of methylisocyante state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 C3 137.506 N2 C1 H5 108.738
N2 C1 H6 110.718 N2 C1 H7 110.718
N2 C3 O4 173.013 H5 C1 H6 108.731
H5 C1 H7 108.731 H6 C1 H7 109.155
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability