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

using model chemistry: B2PLYP/6-31G**

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 B2PLYP/6-31G**
 hartrees
Energy at 0K-244.791002
Energy at 298.15K 
HF Energy-244.556840
Nuclear repulsion energy124.252797
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 B2PLYP/6-31G**
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' 3233 3233 1.92      
2 A' 3129 3129 1.34      
3 A' 1513 1513 10.02      
4 A' 1440 1440 2.52      
5 A' 1416 1416 79.05      
6 A' 1153 1153 0.76      
7 A' 928 928 7.89      
8 A' 663 663 24.70      
9 A' 601 601 5.27      
10 A" 3262 3262 0.54      
11 A" 1666 1666 181.59      
12 A" 1501 1501 33.31      
13 A" 1127 1127 7.93      
14 A" 478 478 0.52      
15 A" 37 37 0.05      

Unscaled Zero Point Vibrational Energy (zpe) 11073.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 11073.6 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 B2PLYP/6-31G**
ABC
0.40263 0.35157 0.19461

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.001 -1.323 0.000
N2 -0.013 0.170 0.000
H3 1.045 -1.631 0.000
H4 -0.495 -1.661 0.904
H5 -0.495 -1.661 -0.904
O6 0.001 0.731 -1.099
O7 0.001 0.731 1.099

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.49331.08841.08501.08502.32942.3294
N21.49332.08872.09852.09851.23371.2337
H31.08842.08871.78601.78602.80622.8062
H41.08502.09851.78601.80713.15902.4510
H51.08502.09851.78601.80712.45103.1590
O62.32941.23372.80623.15902.45102.1977
O72.32941.23372.80622.45103.15902.1977

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 117.028 C1 N2 O7 117.028
N2 C1 H3 106.958 N2 C1 H4 107.910
N2 C1 H5 107.910 H3 C1 H4 110.524
H3 C1 H5 110.524 H4 C1 H5 112.774
O6 N2 O7 125.910
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.198      
2 N 0.410      
3 H 0.173      
4 H 0.164      
5 H 0.164      
6 O -0.357      
7 O -0.357      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.043 -3.459 0.000 3.459
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.395 -0.109 0.000
y -0.109 -21.886 0.000
z 0.000 0.000 -26.046
Traceless
 xyz
x 2.571 -0.109 0.000
y -0.109 1.834 0.000
z 0.000 0.000 -4.405
Polar
3z2-r2-8.811
x2-y20.492
xy-0.109
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.523 -0.023 0.000
y -0.023 3.822 0.000
z 0.000 0.000 4.811


<r2> (average value of r2) Å2
<r2> 64.402
(<r2>)1/2 8.025