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

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 Os out of place 1A'
Energy calculated at PBEPBE/6-31G(2df,p)
 hartrees
Energy at 0K-244.779333
Energy at 298.15K 
HF Energy-244.779333
Nuclear repulsion energy123.981151
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' 3117 3085 1.79      
2 A' 3016 2985 0.69      
3 A' 1422 1407 11.11      
4 A' 1376 1362 74.90      
5 A' 1337 1323 33.63      
6 A' 1087 1076 1.45      
7 A' 895 886 20.25      
8 A' 641 634 11.38      
9 A' 593 587 3.19      
10 A" 3146 3114 0.65      
11 A" 1616 1599 216.00      
12 A" 1409 1395 30.40      
13 A" 1059 1048 5.38      
14 A" 458 454 0.45      
15 A" 30 29 0.09      

Unscaled Zero Point Vibrational Energy (zpe) 10600.4 cm-1
Scaled (by 0.9897) Zero Point Vibrational Energy (zpe) 10491.2 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
0.40235 0.34834 0.19365

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)
C1 0.000 -1.329 0.000
N2 -0.010 0.177 0.000
H3 1.055 -1.639 0.000
H4 -0.496 -1.674 0.914
H5 -0.496 -1.674 -0.914
O6 0.000 0.733 -1.098
O7 0.000 0.733 1.098

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.50661.09941.09581.09582.33622.3362
N21.50662.10582.12122.12121.23091.2309
H31.09942.10581.80101.80102.81852.8185
H41.09582.12121.80101.82773.17642.4647
H51.09582.12121.80101.82772.46473.1764
O62.33621.23092.81853.17642.46472.1968
O72.33621.23092.81852.46473.17642.1968

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 116.818 C1 N2 O7 116.818
N2 C1 H3 106.774 N2 C1 H4 108.160
N2 C1 H5 108.160 H3 C1 H4 110.247
H3 C1 H5 110.247 H4 C1 H5 113.015
O6 N2 O7 126.344
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 C -0.349      
2 N 0.508      
3 H 0.186      
4 H 0.178      
5 H 0.178      
6 O -0.351      
7 O -0.351      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.050 -3.151 0.000 3.151
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.191 -0.104 0.000
y -0.104 -21.711 0.000
z 0.000 0.000 -25.498
Traceless
 xyz
x 2.414 -0.104 0.000
y -0.104 1.634 0.000
z 0.000 0.000 -4.047
Polar
3z2-r2-8.095
x2-y20.520
xy-0.104
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.909 -0.025 0.000
y -0.025 4.402 0.000
z 0.000 0.000 4.879


<r2> (average value of r2) Å2
<r2> 64.525
(<r2>)1/2 8.033