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

using model chemistry: HSEh1PBE/3-21G*

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 HSEh1PBE/3-21G*
 hartrees
Energy at 0K-243.380840
Energy at 298.15K 
HF Energy-243.380840
Nuclear repulsion energy122.029659
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 HSEh1PBE/3-21G*
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' 3216 3087 0.93      
2 A' 3116 2991 0.01      
3 A' 1535 1473 17.92      
4 A' 1426 1369 3.88      
5 A' 1249 1199 90.07      
6 A' 1137 1092 1.94      
7 A' 857 823 5.36      
8 A' 620 595 20.78      
9 A' 554 532 4.48      
10 A" 3253 3123 0.00      
11 A" 1540 1478 0.14      
12 A" 1436 1379 134.46      
13 A" 1090 1046 13.09      
14 A" 438 421 0.32      
15 A" 35 33 0.27      

Unscaled Zero Point Vibrational Energy (zpe) 10750.8 cm-1
Scaled (by 0.9599) Zero Point Vibrational Energy (zpe) 10319.7 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 HSEh1PBE/3-21G*
ABC
0.37950 0.34753 0.18795

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.003 -1.332 0.000
N2 -0.015 0.169 0.000
H3 1.050 -1.640 0.000
H4 -0.499 -1.660 0.907
H5 -0.499 -1.660 -0.907
O6 0.003 0.736 -1.134
O7 0.003 0.736 1.134

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.50171.09201.08721.08722.35872.3587
N21.50172.09962.09842.09841.26781.2678
H31.09202.09961.79581.79582.83322.8332
H41.08722.09841.79581.81413.18712.4583
H51.08722.09841.79581.81412.45833.1871
O62.35871.26782.83323.18712.45832.2682
O72.35871.26782.83322.45833.18712.2682

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 116.529 C1 N2 O7 116.529
N2 C1 H3 107.029 N2 C1 H4 107.209
N2 C1 H5 107.209 H3 C1 H4 110.985
H3 C1 H5 110.985 H4 C1 H5 113.091
O6 N2 O7 126.889
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.450      
2 N 0.239      
3 H 0.282      
4 H 0.270      
5 H 0.270      
6 O -0.305      
7 O -0.305      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.071 -3.556 0.000 3.557
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.283 -0.170 0.000
y -0.170 -21.653 0.000
z 0.000 0.000 -26.129
Traceless
 xyz
x 2.608 -0.170 0.000
y -0.170 2.053 0.000
z 0.000 0.000 -4.661
Polar
3z2-r2-9.322
x2-y20.370
xy-0.170
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.031 -0.015 0.000
y -0.015 3.326 0.000
z 0.000 0.000 4.502


<r2> (average value of r2) Å2
<r2> 65.920
(<r2>)1/2 8.119