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All results from a given calculation for CH3NO3 (Methyl nitrate)

using model chemistry: MP3/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP3/6-31G*
 hartrees
Energy at 0K-319.310912
Energy at 298.15K-319.316737
HF Energy-318.468118
Nuclear repulsion energy188.956123
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 MP3/6-31G*
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' 3252 3052 4.44      
2 A' 3139 2946 11.17      
3 A' 1859 1745 422.34      
4 A' 1557 1461 5.30      
5 A' 1525 1432 42.46      
6 A' 1426 1338 204.74      
7 A' 1238 1162 3.35      
8 A' 1111 1043 138.51      
9 A' 950 891 115.58      
10 A' 714 670 2.75      
11 A' 615 577 4.78      
12 A' 366 344 4.34      
13 A" 3235 3037 11.82      
14 A" 1537 1443 8.20      
15 A" 1207 1133 1.22      
16 A" 792 744 20.51      
17 A" 231 217 0.88      
18 A" 139 131 2.53      

Unscaled Zero Point Vibrational Energy (zpe) 12446.3 cm-1
Scaled (by 0.9386) Zero Point Vibrational Energy (zpe) 11682.1 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 MP3/6-31G*
ABC
0.39713 0.15846 0.11578

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.608 0.000
O2 -1.210 0.540 0.000
O3 0.705 1.583 0.000
O4 0.712 -0.578 0.000
C5 -0.127 -1.748 0.000
H6 0.596 -2.563 0.000
H7 -0.749 -1.779 0.895
H8 -0.749 -1.779 -0.895

Atom - Atom Distances (Å)
  N1 O2 O3 O4 C5 H6 H7 H8
N11.21181.20351.38332.35943.22632.65652.6565
O21.21182.18092.22362.53133.58982.52742.5274
O31.20352.18092.16083.43354.14743.77043.7704
O41.38332.22362.16081.44021.98862.09252.0925
C52.35942.53133.43351.44021.08911.09031.0903
H63.22633.58984.14741.98861.08911.79561.7956
H72.65652.52743.77042.09251.09031.79561.7898
H82.65652.52743.77042.09251.09031.79561.7898

picture of Methyl nitrate state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 O4 C5 113.349 O2 N1 O3 129.101
O2 N1 O4 117.781 O3 N1 O4 113.118
O4 C5 H6 102.783 O4 C5 H7 110.804
O4 C5 H8 110.804 H6 C5 H7 110.957
H6 C5 H8 110.957 H7 C5 H8 110.332
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability