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: wB97X-D/6-311G*

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 wB97X-D/6-311G*
 hartrees
Energy at 0K-244.993655
Energy at 298.15K 
HF Energy-244.993655
Nuclear repulsion energy125.646108
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 wB97X-D/6-311G*
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 3202 3.00      
2 A' 3102 3102 1.04      
3 A' 1505 1505 24.06      
4 A' 1484 1484 96.30      
5 A' 1428 1428 11.58      
6 A' 1154 1154 1.78      
7 A' 966 966 13.80      
8 A' 691 691 22.48      
9 A' 624 624 6.14      
10 A" 3236 3236 1.24      
11 A" 1718 1718 321.05      
12 A" 1484 1484 37.31      
13 A" 1131 1131 10.82      
14 A" 497 497 0.67      
15 A" 32i 32i 0.06      

Unscaled Zero Point Vibrational Energy (zpe) 11095.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 11095.4 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 wB97X-D/6-311G*
ABC
0.41624 0.35503 0.19883

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.001 -1.317 0.000
N2 -0.013 0.175 0.000
H3 1.048 -1.618 0.000
H4 -0.493 -1.660 0.904
H5 -0.493 -1.660 -0.904
O6 0.001 0.726 -1.079
O7 0.001 0.726 1.079

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.49111.08961.08581.08582.31002.3100
N21.49112.08342.10052.10051.21191.2119
H31.08962.08341.78691.78692.78502.7850
H41.08582.10051.78691.80803.14142.4426
H51.08582.10051.78691.80802.44263.1414
O62.31001.21192.78503.14142.44262.1583
O72.31001.21192.78502.44263.14142.1583

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 117.055 C1 N2 O7 117.055
N2 C1 H3 106.626 N2 C1 H4 108.167
N2 C1 H5 108.167 H3 C1 H4 110.455
H3 C1 H5 110.455 H4 C1 H5 112.729
O6 N2 O7 125.854
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.525      
2 N 0.282      
3 H 0.272      
4 H 0.262      
5 H 0.262      
6 O -0.277      
7 O -0.277      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.046 -3.622 0.000 3.622
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.285 -0.104 0.000
y -0.104 -21.924 0.000
z 0.000 0.000 -26.324
Traceless
 xyz
x 2.839 -0.104 0.000
y -0.104 1.880 0.000
z 0.000 0.000 -4.720
Polar
3z2-r2-9.440
x2-y20.639
xy-0.104
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.523 -0.029 0.000
y -0.029 3.814 0.000
z 0.000 0.000 4.908


<r2> (average value of r2) Å2
<r2> 63.502
(<r2>)1/2 7.969