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

using model chemistry: B3PW91/TZVP

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 B3PW91/TZVP
 hartrees
Energy at 0K-245.010166
Energy at 298.15K 
HF Energy-245.010166
Nuclear repulsion energy125.296419
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 B3PW91/TZVP
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' 3185 3071 1.65      
2 A' 3088 2977 0.36      
3 A' 1474 1421 15.73      
4 A' 1439 1388 81.77      
5 A' 1405 1354 32.39      
6 A' 1135 1095 1.26      
7 A' 940 907 16.31      
8 A' 673 649 15.22      
9 A' 621 598 5.23      
10 A" 3216 3101 0.14      
11 A" 1654 1595 338.32      
12 A" 1461 1409 40.53      
13 A" 1111 1071 10.74      
14 A" 486 469 0.64      
15 A" 26 25 0.06      

Unscaled Zero Point Vibrational Energy (zpe) 10956.1 cm-1
Scaled (by 0.9643) Zero Point Vibrational Energy (zpe) 10565.0 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 B3PW91/TZVP
ABC
0.41421 0.35270 0.19762

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.001 -1.321 0.000
N2 -0.011 0.174 0.000
H3 1.047 -1.624 0.000
H4 -0.492 -1.664 0.905
H5 -0.492 -1.664 -0.905
O6 0.001 0.729 -1.082
O7 0.001 0.729 1.082

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.49581.08961.08591.08592.31792.3179
N21.49582.08682.10472.10471.21571.2157
H31.08962.08681.78621.78622.79292.7929
H41.08592.10471.78621.80983.14882.4491
H51.08592.10471.78621.80982.44913.1488
O62.31791.21572.79293.14882.44912.1640
O72.31791.21572.79292.44913.14882.1640

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 117.110 C1 N2 O7 117.110
N2 C1 H3 106.576 N2 C1 H4 108.175
N2 C1 H5 108.175 H3 C1 H4 110.387
H3 C1 H5 110.387 H4 C1 H5 112.892
O6 N2 O7 125.754
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.326      
2 N 0.178      
3 H 0.174      
4 H 0.168      
5 H 0.168      
6 O -0.181      
7 O -0.181      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.038 -3.678 0.000 3.678
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.498 -0.096 0.000
y -0.096 -22.190 0.000
z 0.000 0.000 -26.535
Traceless
 xyz
x 2.865 -0.096 0.000
y -0.096 1.827 0.000
z 0.000 0.000 -4.691
Polar
3z2-r2-9.382
x2-y20.692
xy-0.096
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.878 -0.055 0.000
y -0.055 4.315 0.000
z 0.000 0.000 5.369


<r2> (average value of r2) Å2
<r2> 63.928
(<r2>)1/2 7.995