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

using model chemistry: B2PLYP/6-311+G(3df,2p)

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/6-311+G(3df,2p)
 hartrees
Energy at 0K-244.937997
Energy at 298.15K 
HF Energy-244.650002
Nuclear repulsion energy124.930443
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/6-311+G(3df,2p)
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' 3194 3194 1.68      
2 A' 3100 3100 1.38      
3 A' 1493 1493 12.12      
4 A' 1431 1431 3.92      
5 A' 1400 1400 69.56      
6 A' 1147 1147 0.41      
7 A' 928 928 6.53      
8 A' 666 666 19.78      
9 A' 611 611 3.94      
10 A" 3224 3224 0.07      
11 A" 1616 1616 260.18      
12 A" 1482 1482 50.08      
13 A" 1121 1121 10.75      
14 A" 481 481 0.96      
15 A" 17 17 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 10955.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 10955.0 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 B2PLYP/6-311+G(3df,2p)
ABC
0.40995 0.35250 0.19654

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 -1.322 0.000
N2 -0.010 0.171 0.000
H3 1.043 -1.625 0.000
H4 -0.492 -1.660 0.902
H5 -0.492 -1.660 -0.902
O6 0.000 0.730 -1.088
O7 0.000 0.730 1.088

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.49301.08601.08241.08242.32242.3224
N21.49302.08232.09772.09771.22341.2234
H31.08602.08231.78141.78142.79602.7960
H41.08242.09771.78141.80493.14922.4472
H51.08242.09771.78141.80492.44723.1492
O62.32241.22342.79603.14922.44722.1767
O72.32241.22342.79602.44723.14922.1767

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 117.165 C1 N2 O7 117.165
N2 C1 H3 106.625 N2 C1 H4 108.019
N2 C1 H5 108.019 H3 C1 H4 110.474
H3 C1 H5 110.474 H4 C1 H5 112.968
O6 N2 O7 125.651
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.097      
2 N 0.436      
3 H 0.166      
4 H 0.170      
5 H 0.170      
6 O -0.519      
7 O -0.519      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.014 -3.585 0.000 3.585
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.888 -0.071 0.000
y -0.071 -22.495 0.000
z 0.000 0.000 -26.617
Traceless
 xyz
x 2.668 -0.071 0.000
y -0.071 1.758 0.000
z 0.000 0.000 -4.426
Polar
3z2-r2-8.851
x2-y20.607
xy-0.071
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.387 -0.033 0.000
y -0.033 5.022 0.000
z 0.000 0.000 5.686


<r2> (average value of r2) Å2
<r2> 64.298
(<r2>)1/2 8.019