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

using model chemistry: MP2/CEP-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 MP2/CEP-31G*
 hartrees
Energy at 0K-64.648065
Energy at 298.15K-64.653760
HF Energy-63.816001
Nuclear repulsion energy103.667149
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/CEP-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' 3243 3079 10.62      
2 A' 3109 2952 23.62      
3 A' 1854 1761 199.41      
4 A' 1525 1448 9.49      
5 A' 1487 1412 11.36      
6 A' 1301 1236 236.12      
7 A' 1209 1148 4.68      
8 A' 1050 997 129.04      
9 A' 858 815 196.84      
10 A' 668 634 12.35      
11 A' 572 543 1.31      
12 A' 345 328 2.64      
13 A" 3228 3065 26.11      
14 A" 1500 1424 7.03      
15 A" 1185 1125 0.39      
16 A" 730 693 7.74      
17 A" 239 227 1.18      
18 A" 140 133 3.46      

Unscaled Zero Point Vibrational Energy (zpe) 12121.9 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 11508.5 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/CEP-31G*
ABC
0.37555 0.15319 0.11117

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.619 0.000
O2 -1.241 0.551 0.000
O3 0.739 1.612 0.000
O4 0.730 -0.607 0.000
C5 -0.143 -1.768 0.000
H6 0.575 -2.601 0.000
H7 -0.770 -1.785 0.905
H8 -0.770 -1.785 -0.905

Atom - Atom Distances (Å)
  N1 O2 O3 O4 C5 H6 H7 H8
N11.24311.23771.42712.39173.27102.68202.6820
O21.24312.24642.28642.56603.63772.54942.5494
O31.23772.24642.21923.49374.21643.82603.8260
O41.42712.28642.21921.45332.00012.11152.1115
C52.39172.56603.49371.45331.09961.10091.1009
H63.27103.63774.21642.00011.09961.81461.8146
H72.68202.54943.82602.11151.10091.81461.8098
H82.68202.54943.82602.11151.10091.81461.8098

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 112.270 O2 N1 O3 129.784
O2 N1 O4 117.638 O3 N1 O4 112.578
O4 C5 H6 102.270 O4 C5 H7 110.768
O4 C5 H8 110.768 H6 C5 H7 111.109
H6 C5 H8 111.109 H7 C5 H8 110.567
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability