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

using model chemistry: G4

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at G4
 hartrees
Energy at 0K-320.070052
Energy at 298.15K-320.064123
HF Energy-320.217054
Nuclear repulsion energy188.271271
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 B3LYP/6-31G(2df,p)
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' 3161 3050 5.44      
2 A' 3056 2949 14.55      
3 A' 1752 1691 361.18      
4 A' 1499 1446 5.31      
5 A' 1463 1411 25.61      
6 A' 1342 1295 191.25      
7 A' 1193 1151 1.68      
8 A' 1033 996 89.76      
9 A' 879 848 159.23      
10 A' 672 648 19.36      
11 A' 582 562 1.85      
12 A' 343 331 2.87      
13 A" 3142 3032 14.02      
14 A" 1471 1420 7.89      
15 A" 1172 1131 0.88      
16 A" 784 757 14.08      
17 A" 198 191 0.92      
18 A" 146 141 1.45      

Unscaled Zero Point Vibrational Energy (zpe) 11943.5 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 11525.5 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 B3LYP/6-31G(2df,p)
ABC
0.39436 0.15698 0.11474

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.621 0.000
O2 -1.207 0.558 0.000
O3 0.723 1.578 0.000
O4 0.712 -0.599 0.000
C5 -0.141 -1.751 0.000
H6 0.560 -2.586 0.000
H7 -0.768 -1.778 0.894
H8 -0.768 -1.778 -0.894

Atom - Atom Distances (Å)
  N1 O2 O3 O4 C5 H6 H7 H8
N11.20851.19971.41272.37663.25612.67252.6725
O21.20852.18292.24102.54373.60742.53922.5392
O31.19972.18292.17763.44014.16813.77963.7796
O41.41272.24102.17761.43371.99312.09252.0925
C52.37662.54373.44011.43371.09081.09201.0920
H63.25613.60744.16811.99311.09081.79401.7940
H72.67252.53923.77962.09251.09201.79401.7872
H82.67252.53923.77962.09251.09201.79401.7872

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 114.675 O2 N1 O3 129.235
O2 N1 O4 117.505 O3 N1 O4 113.260
O4 C5 H6 103.628 O4 C5 H7 110.853
O4 C5 H8 110.853 H6 C5 H7 110.735
H6 C5 H8 110.735 H7 C5 H8 109.906
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 0.764      
2 O -0.362      
3 O -0.351      
4 O -0.281      
5 C -0.229      
6 H 0.154      
7 H 0.152      
8 H 0.152      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.368 -2.951 0.000 2.974
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 99.858
(<r2>)1/2 9.993