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 NH2NO (Nitrosamide)

using model chemistry: PBEPBEultrafine/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at PBEPBEultrafine/6-31G*
 hartrees
Energy at 0K-185.656077
Energy at 298.15K-185.659385
HF Energy-185.656077
Nuclear repulsion energy71.345491
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 PBEPBEultrafine/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 3594 3534 33.69      
2 A 3341 3286 0.55      
3 A 1561 1535 63.24      
4 A 1542 1517 132.01      
5 A 1191 1171 79.57      
6 A 1036 1019 63.71      
7 A 721 709 4.79      
8 A 591 581 0.73      
9 A 153 150 233.04      

Unscaled Zero Point Vibrational Energy (zpe) 6864.0 cm-1
Scaled (by 0.9835) Zero Point Vibrational Energy (zpe) 6750.8 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 PBEPBEultrafine/6-31G*
ABC
2.62905 0.42218 0.36401

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -1.131 0.226 0.003
N2 -0.148 -0.516 0.002
N3 1.026 0.148 -0.024
H4 1.025 1.175 0.050
H5 1.874 -0.406 0.081

Atom - Atom Distances (Å)
  O1 N2 N3 H4 H5
O11.23192.15802.35613.0713
N21.23191.34872.05902.0261
N32.15801.34871.02961.0185
H42.35612.05901.02961.7946
H53.07132.02611.01851.7946

picture of Nitrosamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 N3 113.412 N2 N3 H4 119.324
N2 N3 H5 117.036 H4 N3 H5 122.373
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.325      
2 N 0.136      
3 N -0.477      
4 H 0.319      
5 H 0.348      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  3.453 0.759 0.269 3.545
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.890 0.268 0.461
y 0.268 -16.427 0.056
z 0.461 0.056 -17.334
Traceless
 xyz
x 1.990 0.268 0.461
y 0.268 -0.315 0.056
z 0.461 0.056 -1.676
Polar
3z2-r2-3.351
x2-y21.537
xy0.268
xz0.461
yz0.056


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.515 0.048 0.015
y 0.048 2.626 0.006
z 0.015 0.006 1.283


<r2> (average value of r2) Å2
<r2> 36.424
(<r2>)1/2 6.035