return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: SVWN/6-311+G(3df,2p)

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 SVWN/6-311+G(3df,2p)
 hartrees
Energy at 0K-243.885183
Energy at 298.15K 
HF Energy-243.885183
Nuclear repulsion energy125.857312
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 SVWN/6-311+G(3df,2p)
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' 3100 3100 2.66      
2 A' 3005 3005 0.15      
3 A' 1432 1432 80.83      
4 A' 1391 1391 28.92      
5 A' 1329 1329 28.00      
6 A' 1085 1085 2.52      
7 A' 944 944 16.60      
8 A' 673 673 13.22      
9 A' 612 612 2.63      
10 A" 3131 3131 0.67      
11 A" 1639 1639 307.37      
12 A" 1386 1386 37.56      
13 A" 1059 1059 3.84      
14 A" 477 477 0.76      
15 A" 30 30 0.10      

Unscaled Zero Point Vibrational Energy (zpe) 10646.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 10646.6 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 SVWN/6-311+G(3df,2p)
ABC
0.41442 0.36064 0.20017

See section I.F.4 to change rotational constant units
Geometric Data calculated at SVWN/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.000 -1.303 0.000
N2 -0.010 0.170 0.000
H3 1.053 -1.610 0.000
H4 -0.490 -1.653 0.913
H5 -0.490 -1.653 -0.913
O6 -0.000 0.721 -1.081
O7 -0.000 0.721 1.081

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.47211.09721.09341.09342.29472.2947
N21.47212.07302.09372.09371.21401.2140
H31.09722.07301.79301.79302.77762.7776
H41.09342.09371.79301.82573.13882.4298
H51.09342.09371.79301.82572.42983.1388
O62.29471.21402.77763.13882.42982.1624
O72.29471.21402.77762.42983.13882.1624

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 117.040 C1 N2 O7 117.040
N2 C1 H3 106.665 N2 C1 H4 108.494
N2 C1 H5 108.494 H3 C1 H4 109.873
H3 C1 H5 109.873 H4 C1 H5 113.212
O6 N2 O7 125.902
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at SVWN/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.014      
2 N 0.385      
3 H 0.184      
4 H 0.186      
5 H 0.186      
6 O -0.478      
7 O -0.478      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.040 -3.495 0.000 3.496
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.841 -0.109 0.000
y -0.109 -22.478 0.000
z 0.000 0.000 -26.503
Traceless
 xyz
x 2.649 -0.109 0.000
y -0.109 1.694 0.000
z 0.000 0.000 -4.343
Polar
3z2-r2-8.685
x2-y20.637
xy-0.109
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.500 -0.047 0.000
y -0.047 5.272 0.000
z 0.000 0.000 5.669


<r2> (average value of r2) Å2
<r2> 63.468
(<r2>)1/2 7.967