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

using model chemistry: B3PW91/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-320.195403
Energy at 298.15K-320.201137
Nuclear repulsion energy189.175156
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/cc-pVTZ
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 3040 4.50      
2 A' 3057 2939 14.56      
3 A' 1762 1694 429.01      
4 A' 1494 1437 6.13      
5 A' 1459 1403 36.09      
6 A' 1351 1299 204.64      
7 A' 1192 1147 1.09      
8 A' 1046 1005 91.67      
9 A' 886 852 183.39      
10 A' 681 655 24.46      
11 A' 587 565 3.58      
12 A' 342 329 2.98      
13 A" 3142 3021 13.58      
14 A" 1469 1412 10.27      
15 A" 1170 1125 0.53      
16 A" 796 765 14.98      
17 A" 203 195 0.89      
18 A" 147 142 1.71      

Unscaled Zero Point Vibrational Energy (zpe) 11971.8 cm-1
Scaled (by 0.9616) Zero Point Vibrational Energy (zpe) 11512.1 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/cc-pVTZ
ABC
0.39904 0.15822 0.11579

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.619 0.000
O2 -1.200 0.556 0.000
O3 0.718 1.572 0.000
O4 0.708 -0.595 0.000
C5 -0.140 -1.745 0.000
H6 0.560 -2.578 0.000
H7 -0.764 -1.774 0.892
H8 -0.764 -1.774 -0.892

Atom - Atom Distances (Å)
  N1 O2 O3 O4 C5 H6 H7 H8
N11.20151.19281.40572.36803.24552.66562.6656
O21.20152.16992.22832.53373.59452.53282.5328
O31.19282.16992.16713.42554.15233.76613.7661
O41.40572.22832.16711.42791.98772.08572.0857
C52.36802.53373.42551.42791.08791.08931.0893
H63.24553.59454.15231.98771.08791.78771.7877
H72.66562.53283.76612.08571.08931.78771.7840
H82.66562.53283.76612.08571.08931.78771.7840

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 113.376 O2 N1 O3 129.993
O2 N1 O4 117.236 O3 N1 O4 112.771
O4 C5 H6 103.564 O4 C5 H7 111.198
O4 C5 H8 111.198 H6 C5 H7 110.391
H6 C5 H8 110.391 H7 C5 H8 109.953
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 0.472 0.000    
2 O -0.265 0.000    
3 O -0.237 0.000    
4 O -0.196 0.000    
5 C -0.073 0.000    
6 H 0.106 0.000    
7 H 0.096 0.000    
8 H 0.096 0.000    


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.390 -3.044 0.000 3.069
CHELPG 0.000 0.000 0.000 0.000
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.287 0.090 0.000
y 0.090 -26.307 0.000
z 0.000 0.000 -26.676
Traceless
 xyz
x -4.795 0.090 0.000
y 0.090 2.674 0.000
z 0.000 0.000 2.121
Polar
3z2-r24.242
x2-y2-4.980
xy0.090
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> 99.340
(<r2>)1/2 9.967