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

using model chemistry: B3PW91/6-31G(2df,p)

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(2df,p)
 hartrees
Energy at 0K-320.098189
Energy at 298.15K-320.103934
Nuclear repulsion energy189.233933
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(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' 3174 3052 4.72      
2 A' 3061 2943 14.31      
3 A' 1791 1722 370.77      
4 A' 1494 1436 3.54      
5 A' 1462 1405 48.25      
6 A' 1365 1313 179.03      
7 A' 1193 1147 1.24      
8 A' 1057 1016 94.81      
9 A' 897 862 158.99      
10 A' 688 661 14.83      
11 A' 596 573 1.24      
12 A' 347 334 3.23      
13 A" 3154 3032 12.58      
14 A" 1467 1410 9.12      
15 A" 1171 1126 0.61      
16 A" 800 769 14.22      
17 A" 202 194 0.85      
18 A" 151 145 1.48      

Unscaled Zero Point Vibrational Energy (zpe) 12034.9 cm-1
Scaled (by 0.9614) Zero Point Vibrational Energy (zpe) 11570.4 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(2df,p)
ABC
0.39807 0.15894 0.11610

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.615 0.000
O2 -1.202 0.548 0.000
O3 0.716 1.573 0.000
O4 0.710 -0.592 0.000
C5 -0.137 -1.739 0.000
H6 0.564 -2.575 0.000
H7 -0.765 -1.768 0.894
H8 -0.765 -1.768 -0.894

Atom - Atom Distances (Å)
  N1 O2 O3 O4 C5 H6 H7 H8
N11.20431.19601.40032.35853.23992.65762.6576
O21.20432.17542.22602.52293.58782.52032.5203
O31.19602.17542.16483.42054.15103.76223.7622
O41.40032.22602.16481.42641.98882.08742.0874
C52.35852.52293.42051.42641.09111.09251.0925
H63.23993.58784.15101.98881.09111.79351.7935
H72.65762.52033.76222.08741.09251.79351.7874
H82.65762.52033.76222.08741.09251.79351.7874

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 113.098 O2 N1 O3 130.003
O2 N1 O4 117.250 O3 N1 O4 112.747
O4 C5 H6 103.567 O4 C5 H7 111.242
O4 C5 H8 111.242 H6 C5 H7 110.441
H6 C5 H8 110.441 H7 C5 H8 109.779
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 0.849      
2 O -0.392      
3 O -0.385      
4 O -0.311      
5 C -0.286      
6 H 0.177      
7 H 0.173      
8 H 0.173      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.356 -2.972 0.000 2.993
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.658 0.049 0.000
y 0.049 -25.930 0.000
z 0.000 0.000 -26.362
Traceless
 xyz
x -4.512 0.049 0.000
y 0.049 2.580 0.000
z 0.000 0.000 1.932
Polar
3z2-r23.864
x2-y2-4.729
xy0.049
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.800 0.326 0.000
y 0.326 6.228 0.000
z 0.000 0.000 3.220


<r2> (average value of r2) Å2
<r2> 98.849
(<r2>)1/2 9.942