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

using model chemistry: MP2/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-319.698263
Energy at 298.15K-319.704039
HF Energy-318.593454
Nuclear repulsion energy188.626636
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/cc-pVTZ
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' 3218 3055 3.52      
2 A' 3098 2942 14.14      
3 A' 1843 1750 247.27      
4 A' 1522 1445 9.51      
5 A' 1474 1400 13.35      
6 A' 1306 1240 202.88      
7 A' 1204 1144 4.34      
8 A' 1070 1016 113.51      
9 A' 867 824 214.52      
10 A' 685 650 26.67      
11 A' 592 562 3.69      
12 A' 355 337 2.77      
13 A" 3198 3036 12.31      
14 A" 1497 1421 9.13      
15 A" 1187 1127 0.92      
16 A" 780 741 10.71      
17 A" 223 212 0.61      
18 A" 146 139 2.23      

Unscaled Zero Point Vibrational Energy (zpe) 12133.0 cm-1
Scaled (by 0.9495) Zero Point Vibrational Energy (zpe) 11520.2 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/cc-pVTZ
ABC
0.39354 0.15876 0.11560

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.610 0.000
O2 -1.210 0.554 0.000
O3 0.749 1.555 0.000
O4 0.685 -0.567 0.000
C5 -0.139 -1.746 0.000
H6 0.567 -2.566 0.000
H7 -0.760 -1.781 0.887
H8 -0.760 -1.781 -0.887

Atom - Atom Distances (Å)
  N1 O2 O3 O4 C5 H6 H7 H8
N11.21131.20581.36162.36023.22662.66142.6614
O21.21132.19992.20132.53683.59072.53812.5381
O31.20582.19992.12313.41864.12563.76773.7677
O41.36162.20132.12311.43852.00292.08552.0855
C52.36022.53683.41861.43851.08251.08341.0834
H63.22663.59074.12562.00291.08251.77901.7790
H72.66142.53813.76772.08551.08341.77901.7745
H82.66142.53813.76772.08551.08341.77901.7745

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 114.861 O2 N1 O3 131.051
O2 N1 O4 117.528 O3 N1 O4 111.421
O4 C5 H6 104.322 O4 C5 H7 110.786
O4 C5 H8 110.786 H6 C5 H7 110.438
H6 C5 H8 110.438 H7 C5 H8 109.957
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability