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

using model chemistry: mPW1PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/6-31G*
 hartrees
Energy at 0K-320.106250
Energy at 298.15K-320.112019
Nuclear repulsion energy189.281554
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 mPW1PW91/6-31G*
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' 3220 3054 4.72      
2 A' 3106 2946 13.63      
3 A' 1821 1727 382.45      
4 A' 1530 1451 5.54      
5 A' 1495 1418 46.67      
6 A' 1393 1321 202.38      
7 A' 1211 1149 1.69      
8 A' 1080 1024 111.33      
9 A' 915 868 157.28      
10 A' 699 663 10.42      
11 A' 603 572 1.26      
12 A' 352 334 3.72      
13 A" 3199 3034 13.08      
14 A" 1508 1430 9.56      
15 A" 1188 1127 0.56      
16 A" 795 754 18.65      
17 A" 213 202 1.08      
18 A" 151 143 1.90      

Unscaled Zero Point Vibrational Energy (zpe) 12239.7 cm-1
Scaled (by 0.9483) Zero Point Vibrational Energy (zpe) 11606.9 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 mPW1PW91/6-31G*
ABC
0.39803 0.15911 0.11619

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.612 0.000
O2 -1.205 0.544 0.000
O3 0.713 1.576 0.000
O4 0.709 -0.586 0.000
C5 -0.132 -1.740 0.000
H6 0.577 -2.567 0.000
H7 -0.757 -1.770 0.894
H8 -0.757 -1.770 -0.894

Atom - Atom Distances (Å)
  N1 O2 O3 O4 C5 H6 H7 H8
N11.20741.19901.39192.35523.23052.65442.6544
O21.20742.17842.22292.52343.58522.52092.5209
O31.19902.17842.16203.42154.14483.76243.7624
O41.39192.22292.16201.42741.98502.08552.0855
C52.35522.52343.42151.42741.08931.09101.0910
H63.23053.58524.14481.98501.08931.79241.7924
H72.65442.52093.76242.08551.09101.79241.7873
H82.65442.52093.76242.08551.09101.79241.7873

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 113.309 O2 N1 O3 129.706
O2 N1 O4 117.388 O3 N1 O4 112.906
O4 C5 H6 103.315 O4 C5 H7 111.101
O4 C5 H8 111.101 H6 C5 H7 110.592
H6 C5 H8 110.592 H7 C5 H8 109.988
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 0.772      
2 O -0.383      
3 O -0.364      
4 O -0.364      
5 C -0.291      
6 H 0.213      
7 H 0.208      
8 H 0.208      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.386 -3.165 0.000 3.189
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.083 0.106 0.000
y 0.106 -25.952 0.000
z 0.000 0.000 -26.517
Traceless
 xyz
x -4.848 0.106 0.000
y 0.106 2.848 0.000
z 0.000 0.000 2.000
Polar
3z2-r24.001
x2-y2-5.131
xy0.106
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> 98.903
(<r2>)1/2 9.945