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

using model chemistry: TPSSh/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 TPSSh/6-31G**
 hartrees
Energy at 0K-245.021473
Energy at 298.15K 
HF Energy-245.021473
Nuclear repulsion energy124.247751
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 TPSSh/6-31G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3195 3063 2.87      
2 A' 3094 2966 1.20      
3 A' 1501 1439 9.58      
4 A' 1430 1370 46.89      
5 A' 1408 1350 58.27      
6 A' 1135 1089 0.94      
7 A' 916 879 13.29      
8 A' 650 623 19.25      
9 A' 598 573 5.23      
10 A" 3225 3091 1.45      
11 A" 1661 1593 231.28      
12 A" 1489 1427 35.05      
13 A" 1110 1064 9.65      
14 A" 462 443 0.45      
15 A" 36 34 0.07      

Unscaled Zero Point Vibrational Energy (zpe) 10954.6 cm-1
Scaled (by 0.9587) Zero Point Vibrational Energy (zpe) 10502.2 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 TPSSh/6-31G**
ABC
0.40416 0.34971 0.19442

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.001 -1.328 0.000
N2 -0.011 0.174 0.000
H3 1.049 -1.632 0.000
H4 -0.495 -1.665 0.907
H5 -0.495 -1.665 -0.907
O6 0.001 0.732 -1.096
O7 0.001 0.732 1.096

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.50151.09101.08741.08742.33342.3334
N21.50152.09392.10682.10681.23041.2304
H31.09102.09391.79091.79092.80862.8086
H41.08742.10681.79091.81343.16322.4556
H51.08742.10681.79091.81342.45563.1632
O62.33341.23042.80863.16322.45562.1926
O72.33341.23042.80862.45563.16322.1926

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 116.980 C1 N2 O7 116.980
N2 C1 H3 106.665 N2 C1 H4 107.860
N2 C1 H5 107.860 H3 C1 H4 110.597
H3 C1 H5 110.597 H4 C1 H5 112.984
O6 N2 O7 126.012
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.243      
2 N 0.432      
3 H 0.187      
4 H 0.178      
5 H 0.178      
6 O -0.366      
7 O -0.366      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.048 -3.461 0.000 3.462
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.561 -0.025 0.000
y -0.025 3.940 0.000
z 0.000 0.000 4.807


<r2> (average value of r2) Å2
<r2> 64.341
(<r2>)1/2 8.021