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

using model chemistry: mPW1PW91/STO-3G

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 mPW1PW91/STO-3G
 hartrees
Energy at 0K-241.679679
Energy at 298.15K 
HF Energy-241.679679
Nuclear repulsion energy118.185976
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 mPW1PW91/STO-3G
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' 3543 3114 2.01      
2 A' 3350 2944 6.51      
3 A' 1621 1425 8.68      
4 A' 1492 1311 0.02      
5 A' 1333 1171 40.85      
6 A' 1114 979 0.34      
7 A' 888 780 13.36      
8 A' 561 493 12.82      
9 A' 505 444 0.39      
10 A" 3559 3128 3.02      
11 A" 1690 1485 19.70      
12 A" 1623 1426 20.71      
13 A" 1101 968 0.68      
14 A" 410 360 0.52      
15 A" 20i 18i 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 11384.2 cm-1
Scaled (by 0.8789) Zero Point Vibrational Energy (zpe) 10005.5 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 mPW1PW91/STO-3G
ABC
0.36132 0.31897 0.17520

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.001 -1.391 0.000
N2 -0.004 0.176 0.000
H3 1.049 -1.728 0.000
H4 -0.515 -1.730 0.910
H5 -0.515 -1.730 -0.910
O6 0.001 0.769 -1.164
O7 0.001 0.769 1.164

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.56741.10091.09941.09942.45432.4543
N21.56742.17582.17332.17331.30651.3065
H31.10092.17581.80931.80932.94792.9479
H41.09942.17331.80931.81973.28862.5649
H51.09942.17331.80931.81972.56493.2886
O62.45431.30652.94793.28862.56492.3280
O72.45431.30652.94792.56493.28862.3280

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 117.006 C1 N2 O7 117.006
N2 C1 H3 107.988 N2 C1 H4 107.872
N2 C1 H5 107.872 H3 C1 H4 110.631
H3 C1 H5 110.631 H4 C1 H5 111.696
O6 N2 O7 125.984
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.163      
2 N 0.085      
3 H 0.114      
4 H 0.115      
5 H 0.115      
6 O -0.133      
7 O -0.133      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.016 -2.563 0.000 2.563
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.618 -0.029 0.000
y -0.029 -19.991 0.000
z 0.000 0.000 -23.212
Traceless
 xyz
x 1.984 -0.029 0.000
y -0.029 1.424 0.000
z 0.000 0.000 -3.408
Polar
3z2-r2-6.816
x2-y20.373
xy-0.029
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.142 -0.013 0.000
y -0.013 2.392 0.000
z 0.000 0.000 3.094


<r2> (average value of r2) Å2
<r2> 68.320
(<r2>)1/2 8.266