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

using model chemistry: B1B95/6-31G(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 B1B95/6-31G(2df,p)
 hartrees
Energy at 0K-244.941683
Energy at 298.15K 
HF Energy-244.941683
Nuclear repulsion energy125.873241
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 B1B95/6-31G(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' 3213 3077 1.31      
2 A' 3108 2977 0.48      
3 A' 1494 1431 77.82      
4 A' 1466 1404 30.48      
5 A' 1403 1343 7.93      
6 A' 1140 1092 1.90      
7 A' 959 919 13.60      
8 A' 682 653 20.57      
9 A' 628 601 4.99      
10 A" 3244 3107 0.23      
11 A" 1736 1663 289.50      
12 A" 1462 1400 29.60      
13 A" 1108 1061 7.59      
14 A" 477 456 0.58      
15 A" 29 28 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 11074.0 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 10605.6 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 B1B95/6-31G(2df,p)
ABC
0.41620 0.35789 0.19967

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 -1.311 0.000
N2 -0.010 0.174 0.000
H3 1.045 -1.618 0.000
H4 -0.492 -1.651 0.905
H5 -0.492 -1.651 -0.905
O6 0.000 0.723 -1.079
O7 0.000 0.723 1.079

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.48561.08871.08501.08502.30262.3026
N21.48562.07972.09382.09381.21061.2106
H31.08872.07971.78411.78412.78142.7814
H41.08502.09381.78411.81013.13292.4306
H51.08502.09381.78411.81012.43063.1329
O62.30261.21062.78143.13292.43062.1585
O72.30261.21062.78142.43063.13292.1585

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 116.931 C1 N2 O7 116.931
N2 C1 H3 106.765 N2 C1 H4 108.065
N2 C1 H5 108.065 H3 C1 H4 110.323
H3 C1 H5 110.323 H4 C1 H5 113.050
O6 N2 O7 126.121
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.329      
2 N 0.565      
3 H 0.189      
4 H 0.184      
5 H 0.184      
6 O -0.396      
7 O -0.396      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.042 -3.364 0.000 3.364
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.052 -0.091 0.000
y -0.091 -21.517 0.000
z 0.000 0.000 -25.573
Traceless
 xyz
x 2.493 -0.091 0.000
y -0.091 1.796 0.000
z 0.000 0.000 -4.288
Polar
3z2-r2-8.576
x2-y20.465
xy-0.091
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.834 -0.026 0.000
y -0.026 4.118 0.000
z 0.000 0.000 4.768


<r2> (average value of r2) Å2
<r2> 62.996
(<r2>)1/2 7.937