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All results from a given calculation for CH3ONO (Methyl nitrite)

using model chemistry: CCD/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS cis 1A'
Energy calculated at CCD/6-31G*
 hartrees
Energy at 0K-244.332320
Energy at 298.15K-244.337118
HF Energy-243.663533
Nuclear repulsion energy123.371700
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/6-31G*
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' 3227 3055 8.05      
2 A' 3103 2937 13.04      
3 A' 1740 1647 117.18      
4 A' 1545 1462 8.35      
5 A' 1498 1418 1.75      
6 A' 1229 1164 0.82      
7 A' 1095 1037 187.82      
8 A' 917 868 97.76      
9 A' 769 728 56.00      
10 A' 381 360 3.43      
11 A" 3186 3016 19.63      
12 A" 1534 1452 8.00      
13 A" 1193 1129 1.51      
14 A" 356 337 3.42      
15 A" 233 221 0.33      

Unscaled Zero Point Vibrational Energy (zpe) 11003.6 cm-1
Scaled (by 0.9465) Zero Point Vibrational Energy (zpe) 10414.9 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/6-31G*
ABC
0.67391 0.25232 0.19025

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.322 0.309 0.000
O2 0.000 0.875 0.000
H3 1.983 1.176 0.000
H4 1.487 -0.302 0.893
H5 1.487 -0.302 -0.893
N6 -1.027 -0.015 0.000
O7 -0.712 -1.165 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4 H5 N6 O7
C11.43771.09021.09451.09452.37162.5122
O21.43772.00612.09572.09571.35902.1606
H31.09022.00611.79641.79643.23773.5702
H41.09452.09571.79641.78602.68352.5255
H51.09452.09571.79641.78602.68352.5255
N62.37161.35903.23772.68352.68351.1927
O72.51222.16063.57022.52552.52551.1927

picture of Methyl nitrite state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 N6 115.953 O2 C1 H3 104.200
O2 C1 H4 110.983 O2 C1 H5 110.983
O2 N6 O7 115.559 H3 C1 H4 110.625
H3 C1 H5 110.625 H4 C1 H5 109.353
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability