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

using model chemistry: B3PW91/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/6-31G**
 hartrees
Energy at 0K-320.074023
Energy at 298.15K-320.079743
Nuclear repulsion energy188.538253
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 B3PW91/6-31G**
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' 3190 3057 4.74      
2 A' 3074 2947 14.42      
3 A' 1799 1725 364.71      
4 A' 1506 1443 4.72      
5 A' 1470 1409 46.54      
6 A' 1371 1314 196.28      
7 A' 1193 1143 1.19      
8 A' 1057 1013 97.86      
9 A' 893 855 165.62      
10 A' 684 655 15.12      
11 A' 589 565 1.32      
12 A' 346 331 3.47      
13 A" 3169 3037 13.77      
14 A" 1481 1419 9.40      
15 A" 1172 1123 0.44      
16 A" 782 749 17.59      
17 A" 202 194 1.24      
18 A" 149 142 1.76      

Unscaled Zero Point Vibrational Energy (zpe) 12062.7 cm-1
Scaled (by 0.9584) Zero Point Vibrational Energy (zpe) 11560.9 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 B3PW91/6-31G**
ABC
0.39474 0.15782 0.11522

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.616 0.000
O2 -1.209 0.550 0.000
O3 0.719 1.579 0.000
O4 0.712 -0.594 0.000
C5 -0.137 -1.746 0.000
H6 0.568 -2.578 0.000
H7 -0.763 -1.775 0.894
H8 -0.763 -1.775 -0.894

Atom - Atom Distances (Å)
  N1 O2 O3 O4 C5 H6 H7 H8
N11.21051.20211.40362.36613.24452.66482.6648
O21.21052.18552.23522.53423.59792.53102.5310
O31.20212.18552.17293.43364.16013.77513.7751
O41.40362.23522.17291.43091.98972.09082.0908
C52.36612.53423.43361.43091.09051.09221.0922
H63.24453.59794.16011.98971.09051.79361.7936
H72.66482.53103.77512.09081.09221.79361.7879
H82.66482.53103.77512.09081.09221.79361.7879

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 113.179 O2 N1 O3 129.878
O2 N1 O4 117.345 O3 N1 O4 112.777
O4 C5 H6 103.381 O4 C5 H7 111.215
O4 C5 H8 111.215 H6 C5 H7 110.513
H6 C5 H8 110.513 H7 C5 H8 109.862
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 0.758      
2 O -0.376      
3 O -0.357      
4 O -0.369      
5 C -0.156      
6 H 0.168      
7 H 0.166      
8 H 0.166      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.415 -3.113 0.000 3.141
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.051 0.135 0.000
y 0.135 -25.898 0.000
z 0.000 0.000 -26.535
Traceless
 xyz
x -4.835 0.135 0.000
y 0.135 2.895 0.000
z 0.000 0.000 1.939
Polar
3z2-r23.879
x2-y2-5.153
xy0.135
xz0.000
yz0.000


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> 99.552
(<r2>)1/2 9.978