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

using model chemistry: PBE1PBE/6-31+G**

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 PBE1PBE/6-31+G**
 hartrees
Energy at 0K-244.763614
Energy at 298.15K 
HF Energy-244.763614
Nuclear repulsion energy125.294061
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 PBE1PBE/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' 3215 3071 1.33      
2 A' 3110 2971 0.49      
3 A' 1494 1427 68.09      
4 A' 1472 1406 38.89      
5 A' 1413 1349 13.42      
6 A' 1140 1089 1.49      
7 A' 957 914 10.85      
8 A' 679 649 19.46      
9 A' 622 594 4.52      
10 A" 3247 3102 0.00      
11 A" 1716 1639 368.58      
12 A" 1465 1400 37.38      
13 A" 1116 1067 9.03      
14 A" 488 466 0.86      
15 A" 35 33 0.07      

Unscaled Zero Point Vibrational Energy (zpe) 11083.4 cm-1
Scaled (by 0.9553) Zero Point Vibrational Energy (zpe) 10588.0 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 PBE1PBE/6-31+G**
ABC
0.41260 0.35479 0.19792

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 -1.316 0.000
N2 -0.011 0.171 0.000
H3 1.049 -1.620 0.000
H4 -0.493 -1.659 0.907
H5 -0.493 -1.659 -0.907
O6 0.000 0.727 -1.084
O7 0.000 0.727 1.084

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.48711.09171.08801.08802.31312.3131
N21.48712.08102.09872.09871.21861.2186
H31.09172.08101.78911.78912.79002.7900
H41.08802.09871.78911.81423.14692.4432
H51.08802.09871.78911.81422.44323.1469
O62.31311.21862.79003.14692.44322.1683
O72.31311.21862.79002.44323.14692.1683

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 117.156 C1 N2 O7 117.156
N2 C1 H3 106.594 N2 C1 H4 108.176
N2 C1 H5 108.176 H3 C1 H4 110.335
H3 C1 H5 110.335 H4 C1 H5 112.973
O6 N2 O7 125.666
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.425      
2 N 0.100      
3 H 0.214      
4 H 0.211      
5 H 0.211      
6 O -0.155      
7 O -0.155      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.031 -3.761 0.000 3.762
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.733 -0.099 0.000
y -0.099 -22.366 0.000
z 0.000 0.000 -26.676
Traceless
 xyz
x 2.788 -0.099 0.000
y -0.099 1.838 0.000
z 0.000 0.000 -4.627
Polar
3z2-r2-9.253
x2-y20.634
xy-0.099
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.032 -0.051 0.000
y -0.051 4.529 0.000
z 0.000 0.000 5.487


<r2> (average value of r2) Å2
<r2> 63.961
(<r2>)1/2 7.998