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All results from a given calculation for CH3NO2 (Methane, nitro-)

using model chemistry: HSEh1PBE/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS Os out of place 1A'
Energy calculated at HSEh1PBE/6-31G(2df,p)
 hartrees
Energy at 0K-244.789135
Energy at 298.15K 
HF Energy-244.789135
Nuclear repulsion energy125.740568
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 HSEh1PBE/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' 3203 3068 1.35      
2 A' 3099 2968 0.48      
3 A' 1493 1429 80.12      
4 A' 1463 1401 30.22      
5 A' 1401 1341 8.91      
6 A' 1139 1091 2.03      
7 A' 959 919 14.56      
8 A' 685 656 19.45      
9 A' 630 603 4.70      
10 A" 3235 3098 0.23      
11 A" 1737 1664 287.50      
12 A" 1458 1396 29.68      
13 A" 1108 1061 7.00      
14 A" 484 463 0.65      
15 A" 27 26 0.04      

Unscaled Zero Point Vibrational Energy (zpe) 11060.2 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 10592.3 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 HSEh1PBE/6-31G(2df,p)
ABC
0.41545 0.35709 0.19928

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 -1.312 0.000
N2 -0.010 0.175 0.000
H3 1.047 -1.620 0.000
H4 -0.493 -1.655 0.907
H5 -0.493 -1.655 -0.907
O6 0.000 0.724 -1.080
O7 0.000 0.724 1.080

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.48711.09141.08781.08782.30452.3045
N21.48712.08332.09842.09841.21151.2115
H31.09142.08331.78771.78772.78512.7851
H41.08782.09841.78771.81423.13822.4350
H51.08782.09841.78771.81422.43503.1382
O62.30451.21152.78513.13822.43502.1603
O72.30451.21152.78512.43503.13822.1603

picture of Methane, nitro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O6 116.924 C1 N2 O7 116.924
N2 C1 H3 106.786 N2 C1 H4 108.165
N2 C1 H5 108.165 H3 C1 H4 110.241
H3 C1 H5 110.241 H4 C1 H5 113.006
O6 N2 O7 126.133
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.369      
2 N 0.574      
3 H 0.201      
4 H 0.194      
5 H 0.194      
6 O -0.397      
7 O -0.397      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.045 -3.341 0.000 3.341
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.105 -0.096 0.000
y -0.096 -21.599 0.000
z 0.000 0.000 -25.607
Traceless
 xyz
x 2.498 -0.096 0.000
y -0.096 1.757 0.000
z 0.000 0.000 -4.255
Polar
3z2-r2-8.510
x2-y20.494
xy-0.096
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.847 -0.026 0.000
y -0.026 4.142 0.000
z 0.000 0.000 4.777


<r2> (average value of r2) Å2
<r2> 63.140
(<r2>)1/2 7.946