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

using model chemistry: mPW1PW91/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/6-31+G**
 hartrees
Energy at 0K-320.123110
Energy at 298.15K-320.128859
Nuclear repulsion energy189.089022
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 mPW1PW91/6-31+G**
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' 3214 3059 2.71      
2 A' 3095 2946 14.66      
3 A' 1789 1703 457.96      
4 A' 1507 1435 5.64      
5 A' 1475 1404 52.95      
6 A' 1381 1314 209.38      
7 A' 1202 1144 1.24      
8 A' 1067 1015 115.75      
9 A' 906 862 165.29      
10 A' 696 663 12.76      
11 A' 599 570 1.91      
12 A' 346 330 3.81      
13 A" 3193 3039 10.16      
14 A" 1483 1412 12.30      
15 A" 1177 1120 0.61      
16 A" 791 753 14.03      
17 A" 208 198 1.23      
18 A" 145 138 2.13      

Unscaled Zero Point Vibrational Energy (zpe) 12136.9 cm-1
Scaled (by 0.9518) Zero Point Vibrational Energy (zpe) 11551.9 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 mPW1PW91/6-31+G**
ABC
0.39830 0.15833 0.11581

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.612 0.000
O2 -1.207 0.546 0.000
O3 0.711 1.579 0.000
O4 0.707 -0.585 0.000
C5 -0.129 -1.747 0.000
H6 0.587 -2.567 0.000
H7 -0.752 -1.779 0.894
H8 -0.752 -1.779 -0.894

Atom - Atom Distances (Å)
  N1 O2 O3 O4 C5 H6 H7 H8
N11.20851.19991.39042.36273.23322.66162.6616
O21.20852.17832.22272.53373.59312.53262.5326
O31.19992.17832.16383.43004.14773.77033.7703
O41.39042.22272.16381.43091.98562.08612.0861
C52.36272.53373.43001.43091.08871.09041.0904
H63.23323.59314.14771.98561.08871.79251.7925
H72.66162.53263.77032.08611.09041.79251.7890
H82.66162.53263.77032.08611.09041.79251.7890

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 113.740 O2 N1 O3 129.499
O2 N1 O4 117.401 O3 N1 O4 113.100
O4 C5 H6 103.171 O4 C5 H7 110.941
O4 C5 H8 110.941 H6 C5 H7 110.686
H6 C5 H8 110.686 H7 C5 H8 110.238
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.060      
2 O -0.115      
3 O -0.088      
4 O -0.036      
5 C -0.273      
6 H 0.188      
7 H 0.192      
8 H 0.192      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.417 -3.419 0.000 3.445
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.944 0.188 0.000
y 0.188 -26.557 0.000
z 0.000 0.000 -27.065
Traceless
 xyz
x -5.132 0.188 0.000
y 0.188 2.947 0.000
z 0.000 0.000 2.185
Polar
3z2-r24.371
x2-y2-5.386
xy0.188
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> 99.597
(<r2>)1/2 9.980