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

using model chemistry: PBEPBE/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 PBEPBE/6-31G(2df,p)
 hartrees
Energy at 0K-319.902541
Energy at 298.15K-319.908097
Nuclear repulsion energy186.489294
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/6-31G(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' 3090 3058 4.73      
2 A' 2979 2948 15.68      
3 A' 1730 1713 304.11      
4 A' 1448 1433 5.77      
5 A' 1405 1390 32.00      
6 A' 1298 1285 172.12      
7 A' 1144 1132 0.83      
8 A' 999 989 52.70      
9 A' 818 809 155.28      
10 A' 632 625 28.51      
11 A' 538 533 12.63      
12 A' 328 325 2.02      
13 A" 3064 3033 15.17      
14 A" 1416 1401 8.20      
15 A" 1130 1118 0.34      
16 A" 744 736 10.50      
17 A" 186 184 1.40      
18 A" 148 146 0.95      

Unscaled Zero Point Vibrational Energy (zpe) 11547.8 cm-1
Scaled (by 0.9897) Zero Point Vibrational Energy (zpe) 11428.8 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/6-31G(2df,p)
ABC
0.38452 0.15481 0.11278

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.634 0.000
O2 -1.214 0.568 0.000
O3 0.743 1.586 0.000
O4 0.725 -0.625 0.000
C5 -0.159 -1.753 0.000
H6 0.523 -2.615 0.000
H7 -0.795 -1.768 0.900
H8 -0.795 -1.768 -0.900

Atom - Atom Distances (Å)
  N1 O2 O3 O4 C5 H6 H7 H8
N11.21611.20771.45192.39173.29082.68512.6851
O21.21612.20612.27622.54903.62612.53812.5381
O31.20772.20612.21063.45844.20713.79783.7978
O41.45192.27622.21061.43322.00102.10372.1037
C52.39172.54903.45841.43321.09971.10141.1014
H63.29083.62614.20712.00101.09971.80621.8062
H72.68512.53813.79782.10371.10141.80621.7991
H82.68512.53813.79782.10371.10141.80621.7991

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 111.982 O2 N1 O3 131.058
O2 N1 O4 116.828 O3 N1 O4 112.114
O4 C5 H6 103.588 O4 C5 H7 111.522
O4 C5 H8 111.522 H6 C5 H7 110.287
H6 C5 H8 110.287 H7 C5 H8 109.518
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 0.720      
2 O -0.334      
3 O -0.330      
4 O -0.257      
5 C -0.273      
6 H 0.161      
7 H 0.157      
8 H 0.157      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.434 -2.628 0.000 2.664
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.556 0.089 0.000
y 0.089 -25.961 0.000
z 0.000 0.000 -26.560
Traceless
 xyz
x -4.295 0.089 0.000
y 0.089 2.597 0.000
z 0.000 0.000 1.698
Polar
3z2-r23.396
x2-y2-4.595
xy0.089
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.954 0.308 0.000
y 0.308 6.737 0.000
z 0.000 0.000 3.295


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000