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: SVWN/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 SVWN/6-31G*
 hartrees
Energy at 0K-131.051411
Energy at 298.15K 
HF Energy-131.051411
Nuclear repulsion energy39.394629
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/6-31G*
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' 3667 3597 25.40 71.08 0.30 0.46
2 A' 3325 3262 4.66 120.86 0.12 0.21
3 A' 1649 1618 15.59 16.32 0.52 0.68
4 A' 1397 1370 22.47 5.86 0.75 0.86
5 A' 1145 1124 147.90 3.88 0.75 0.86
6 A' 963 944 17.58 7.43 0.17 0.29
7 A" 3421 3356 1.41 70.11 0.75 0.86
8 A" 1315 1290 0.35 12.93 0.75 0.86
9 A" 435 427 190.82 5.33 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8658.1 cm-1
Scaled (by 0.981) Zero Point Vibrational Energy (zpe) 8493.6 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/6-31G*
ABC
6.25288 0.86613 0.86602

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.011 0.695 0.000
O2 -0.011 -0.728 0.000
H3 -0.967 -0.929 0.000
H4 0.566 0.945 0.817
H5 0.566 0.945 -0.817

Atom - Atom Distances (Å)
  N1 O2 H3 H4 H5
N11.42261.88431.03131.0313
O21.42260.97731.94921.9492
H31.88430.97732.55542.5554
H41.03131.94922.55541.6348
H51.03131.94922.55541.6348

picture of hydroxylamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 O2 H3 101.866 O2 N1 H4 104.050
O2 N1 H5 104.050 H4 N1 H5 104.865
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at SVWN/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.544      
2 O -0.539      
3 H 0.423      
4 H 0.330      
5 H 0.330      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.152 0.498 0.000 0.520
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -10.828 3.924 0.000
y 3.924 -12.482 0.000
z 0.000 0.000 -11.423
Traceless
 xyz
x 1.124 3.924 0.000
y 3.924 -1.356 0.000
z 0.000 0.000 0.232
Polar
3z2-r20.463
x2-y21.654
xy3.924
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.708 0.485 0.000
y 0.485 2.150 0.000
z 0.000 0.000 1.660


<r2> (average value of r2) Å2
<r2> 20.411
(<r2>)1/2 4.518