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All results from a given calculation for NH2OH (hydroxylamine)

using model chemistry: PBEPBE/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBEPBE/6-31G(2df,p)
 hartrees
Energy at 0K-131.576416
Energy at 298.15K 
HF Energy-131.576416
Nuclear repulsion energy38.928387
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 PBEPBE/6-31G(2df,p)
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' 3697 3659 21.81 59.24 0.28 0.44
2 A' 3316 3282 4.16 105.69 0.11 0.20
3 A' 1618 1601 11.07 11.29 0.50 0.67
4 A' 1386 1372 19.00 4.02 0.74 0.85
5 A' 1149 1137 119.44 2.21 0.75 0.85
6 A' 898 889 10.17 8.82 0.18 0.31
7 A" 3397 3362 1.41 59.91 0.75 0.86
8 A" 1295 1282 0.13 8.63 0.75 0.86
9 A" 375 371 145.12 3.33 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8565.6 cm-1
Scaled (by 0.9897) Zero Point Vibrational Energy (zpe) 8477.4 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 PBEPBE/6-31G(2df,p)
ABC
6.22367 0.83814 0.83558

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.013 0.712 0.000
O2 -0.013 -0.743 0.000
H3 -0.967 -0.928 0.000
H4 0.580 0.943 0.810
H5 0.580 0.943 -0.810

Atom - Atom Distances (Å)
  N1 O2 H3 H4 H5
N11.45451.89711.03051.0305
O21.45450.97171.96211.9621
H31.89710.97172.55942.5594
H41.03051.96212.55941.6206
H51.03051.96212.55941.6206

picture of hydroxylamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 O2 H3 101.002 O2 N1 H4 102.966
O2 N1 H5 102.966 H4 N1 H5 103.690
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.406      
2 O -0.401      
3 H 0.301      
4 H 0.253      
5 H 0.253      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.136 0.468 0.000 0.487
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -10.792 3.521 0.000
y 3.521 -12.335 0.000
z 0.000 0.000 -11.432
Traceless
 xyz
x 1.092 3.521 0.000
y 3.521 -1.224 0.000
z 0.000 0.000 0.132
Polar
3z2-r20.264
x2-y21.543
xy3.521
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.972 0.440 0.000
y 0.440 2.464 0.000
z 0.000 0.000 1.903


<r2> (average value of r2) Å2
<r2> 20.717
(<r2>)1/2 4.552