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 NH2OH (hydroxylamine)

using model chemistry: B3LYPultrafine/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYPultrafine/6-31G*
 hartrees
Energy at 0K-131.704928
Energy at 298.15K 
HF Energy-131.704928
Nuclear repulsion energy39.096745
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 B3LYPultrafine/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' 3746 3589 21.92 68.27 0.31 0.48
2 A' 3409 3266 3.57 110.02 0.13 0.22
3 A' 1705 1633 16.30 13.52 0.56 0.72
4 A' 1438 1378 20.75 5.85 0.74 0.85
5 A' 1189 1139 140.00 2.99 0.72 0.84
6 A' 942 902 11.60 12.53 0.19 0.32
7 A" 3500 3353 2.47 65.20 0.75 0.86
8 A" 1345 1289 0.02 11.04 0.75 0.86
9 A" 411 394 190.28 5.40 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8841.9 cm-1
Scaled (by 0.958) Zero Point Vibrational Energy (zpe) 8470.6 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 B3LYPultrafine/6-31G*
ABC
6.31127 0.84358 0.84263

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.012 0.709 0.000
O2 -0.012 -0.739 0.000
H3 -0.961 -0.937 0.000
H4 0.567 0.942 0.811
H5 0.567 0.942 -0.811

Atom - Atom Distances (Å)
  N1 O2 H3 H4 H5
N11.44811.90001.02271.0227
O21.44810.96971.95411.9541
H31.90000.96972.55372.5537
H41.02271.95412.55371.6211
H51.02271.95412.55371.6211

picture of hydroxylamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 O2 H3 101.760 O2 N1 H4 103.183
O2 N1 H5 103.183 H4 N1 H5 104.854
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.496      
2 O -0.547      
3 H 0.411      
4 H 0.316      
5 H 0.316      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.167 0.558 0.000 0.583
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -10.793 3.855 0.000
y 3.855 -12.455 0.000
z 0.000 0.000 -11.399
Traceless
 xyz
x 1.134 3.855 0.000
y 3.855 -1.359 0.000
z 0.000 0.000 0.225
Polar
3z2-r20.450
x2-y21.662
xy3.855
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.682 0.477 0.000
y 0.477 2.229 0.000
z 0.000 0.000 1.620


<r2> (average value of r2) Å2
<r2> 20.638
(<r2>)1/2 4.543