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

using model chemistry: B1B95/6-311G**

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 B1B95/6-311G**
 hartrees
Energy at 0K-244.988830
Energy at 298.15K 
HF Energy-244.988830
Nuclear repulsion energy125.868195
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 B1B95/6-311G**
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' 3205 3077 1.79      
2 A' 3105 2981 0.33      
3 A' 1488 1429 69.19      
4 A' 1471 1412 56.60      
5 A' 1407 1351 12.68      
6 A' 1139 1094 1.85      
7 A' 961 923 16.82      
8 A' 684 657 20.21      
9 A' 625 600 5.87      
10 A" 3236 3107 0.39      
11 A" 1720 1652 317.36      
12 A" 1465 1407 32.99      
13 A" 1113 1069 9.50      
14 A" 485 466 0.49      
15 A" 40 39 0.07      

Unscaled Zero Point Vibrational Energy (zpe) 11072.6 cm-1
Scaled (by 0.9601) Zero Point Vibrational Energy (zpe) 10630.8 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 B1B95/6-311G**
ABC
0.41699 0.35687 0.19954

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.001 -1.314 0.000
N2 -0.012 0.175 0.000
H3 1.045 -1.616 0.000
H4 -0.492 -1.653 0.903
H5 -0.492 -1.653 -0.903
O6 0.001 0.724 -1.078
O7 0.001 0.724 1.078

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.48881.08741.08371.08372.30512.3051
N21.48882.07992.09522.09521.20991.2099
H31.08742.07991.78341.78342.77992.7799
H41.08372.09521.78341.80693.13382.4339
H51.08372.09521.78341.80692.43393.1338
O62.30511.20992.77993.13382.43392.1565
O72.30511.20992.77992.43393.13382.1565

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 116.961 C1 N2 O7 116.961
N2 C1 H3 106.635 N2 C1 H4 108.034
N2 C1 H5 108.034 H3 C1 H4 110.455
H3 C1 H5 110.455 H4 C1 H5 112.968
O6 N2 O7 126.049
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.198      
2 N 0.247      
3 H 0.175      
4 H 0.161      
5 H 0.161      
6 O -0.273      
7 O -0.273      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.052 -3.540 0.000 3.540
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.265 -0.114 0.000
y -0.114 -21.884 0.000
z 0.000 0.000 -26.207
Traceless
 xyz
x 2.781 -0.114 0.000
y -0.114 1.852 0.000
z 0.000 0.000 -4.633
Polar
3z2-r2-9.266
x2-y20.619
xy-0.114
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.552 -0.027 0.000
y -0.027 3.931 0.000
z 0.000 0.000 4.899


<r2> (average value of r2) Å2
<r2> 63.279
(<r2>)1/2 7.955