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

using model chemistry: PBEPBE/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 PBEPBE/6-31+G**
 hartrees
Energy at 0K-319.897233
Energy at 298.15K-319.902731
Nuclear repulsion energy185.468409
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 PBEPBE/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' 3105 3069 2.83      
2 A' 2991 2957 16.13      
3 A' 1702 1683 369.59      
4 A' 1451 1434 8.69      
5 A' 1405 1389 27.56      
6 A' 1290 1275 206.05      
7 A' 1141 1128 0.49      
8 A' 986 974 53.74      
9 A' 800 791 167.91      
10 A' 623 616 35.41      
11 A' 523 517 21.43      
12 A' 319 315 2.16      
13 A" 3082 3047 13.37      
14 A" 1421 1405 11.48      
15 A" 1125 1112 0.23      
16 A" 723 714 9.32      
17 A" 188 186 2.16      
18 A" 140 139 1.56      

Unscaled Zero Point Vibrational Energy (zpe) 11506.3 cm-1
Scaled (by 0.9886) Zero Point Vibrational Energy (zpe) 11375.1 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 PBEPBE/6-31+G**
ABC
0.38121 0.15256 0.11132

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.637 0.000
O2 -1.222 0.578 0.000
O3 0.747 1.595 0.000
O4 0.723 -0.628 0.000
C5 -0.158 -1.770 0.000
H6 0.537 -2.621 0.000
H7 -0.788 -1.787 0.903
H8 -0.788 -1.787 -0.903

Atom - Atom Distances (Å)
  N1 O2 O3 O4 C5 H6 H7 H8
N11.22301.21461.45722.41153.30172.70392.7039
O21.22302.21552.28842.57713.65062.56822.5682
O31.21462.21552.22303.48374.22063.82193.8219
O41.45722.28842.22301.44192.00122.10762.1076
C52.41152.57713.48371.44191.09941.10111.1011
H63.30173.65064.22062.00121.09941.80781.8078
H72.70392.56823.82192.10761.10111.80781.8056
H82.70392.56823.82192.10761.10111.80781.8056

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 112.572 O2 N1 O3 130.710
O2 N1 O4 116.994 O3 N1 O4 112.296
O4 C5 H6 103.070 O4 C5 H7 111.244
O4 C5 H8 111.244 H6 C5 H7 110.479
H6 C5 H8 110.479 H7 C5 H8 110.146
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.128      
2 O -0.072      
3 O -0.040      
4 O -0.034      
5 C -0.290      
6 H 0.186      
7 H 0.189      
8 H 0.189      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.566 -3.041 0.000 3.093
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.062 0.295 0.000
y 0.295 -26.647 0.000
z 0.000 0.000 -27.476
Traceless
 xyz
x -5.000 0.295 0.000
y 0.295 3.122 0.000
z 0.000 0.000 1.878
Polar
3z2-r23.757
x2-y2-5.415
xy0.295
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.773 0.317 0.000
y 0.317 7.447 0.000
z 0.000 0.000 3.665


<r2> (average value of r2) Å2
<r2> 102.893
(<r2>)1/2 10.144