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All results from a given calculation for CH3NO (nitrosomethane)

using model chemistry: CCD/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCD/6-311G*
 hartrees
Energy at 0K-169.383800
Energy at 298.15K-169.387495
HF Energy-168.868321
Nuclear repulsion energy70.535402
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/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 A' 3166 3023 10.72      
2 A' 3052 2915 3.72      
3 A' 1736 1658 39.58      
4 A' 1496 1429 20.58      
5 A' 1426 1362 22.17      
6 A' 1189 1135 14.70      
7 A' 911 870 10.38      
8 A' 602 575 2.19      
9 A" 3147 3006 7.42      
10 A" 1489 1422 13.13      
11 A" 1013 967 3.45      
12 A" 135 129 1.23      

Unscaled Zero Point Vibrational Energy (zpe) 9680.4 cm-1
Scaled (by 0.9551) Zero Point Vibrational Energy (zpe) 9245.7 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 CCD/6-311G*
ABC
2.03419 0.38581 0.34535

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.942 -0.572 0.000
N2 0.000 0.574 0.000
O3 1.151 0.234 0.000
H4 -0.403 -1.524 0.000
H5 -1.576 -0.467 0.887
H6 -1.576 -0.467 -0.887

Atom - Atom Distances (Å)
  C1 N2 O3 H4 H5 H6
C11.48402.24341.09361.09481.0948
N21.48401.20012.13622.08642.0864
O32.24341.20012.34662.95202.9520
H41.09362.13622.34661.81081.8108
H51.09482.08642.95201.81081.7730
H61.09482.08642.95201.81081.7730

picture of nitrosomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O3 112.980 N2 C1 H4 111.036
N2 C1 H5 107.043 N2 C1 H6 107.043
H4 C1 H5 111.669 H4 C1 H6 111.669
H5 C1 H6 108.143
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability