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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-245.017932
Energy at 298.15K 
HF Energy-245.017932
Nuclear repulsion energy124.236874
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
4/u)
Dep P Dep U
1 A' 3202 3072 3.06      
2 A' 3104 2978 1.25      
3 A' 1514 1453 9.49      
4 A' 1437 1379 21.50      
5 A' 1414 1356 82.71      
6 A' 1144 1097 0.88      
7 A' 918 880 12.75      
8 A' 651 624 19.23      
9 A' 598 574 5.45      
10 A" 3232 3101 1.72      
11 A" 1662 1595 229.26      
12 A" 1502 1441 37.38      
13 A" 1118 1073 10.26      
14 A" 464 446 0.43      
15 A" 32 31 0.06      

Unscaled Zero Point Vibrational Energy (zpe) 10996.4 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 10549.9 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
0.40410 0.34966 0.19441

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 -0.012 0.174 0.000
H3 1.050 -1.631 0.000
H4 -0.496 -1.666 0.907
H5 -0.496 -1.666 -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
C11.50161.09171.08811.08812.33352.3335
N21.50162.09382.10762.10761.23041.2304
H31.09172.09381.79241.79242.80812.8081
H41.08812.10761.79241.81393.16412.4564
H51.08812.10761.79241.81392.45643.1641
O62.33351.23042.80813.16412.45642.1927
O72.33351.23042.80812.45643.16412.1927

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 116.978 C1 N2 O7 116.978
N2 C1 H3 106.612 N2 C1 H4 107.877
N2 C1 H5 107.877 H3 C1 H4 110.631
H3 C1 H5 110.631 H4 C1 H5 112.935
O6 N2 O7 126.013
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 -0.368      
2 N 0.444      
3 H 0.223      
4 H 0.216      
5 H 0.216      
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
  0.046 -3.455 0.000 3.455
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 2.532 -0.026 0.000
y -0.026 3.895 0.000
z 0.000 0.000 4.783


<r2> (average value of r2) Å2
<r2> 64.358
(<r2>)1/2 8.022