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All results from a given calculation for NH2OH (hydroxylamine)

using model chemistry: TPSSh/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at TPSSh/3-21G*
 hartrees
Energy at 0K-130.975488
Energy at 298.15K 
HF Energy-130.975488
Nuclear repulsion energy37.619320
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 TPSSh/3-21G*
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' 3444 3326 3.56 79.24 0.35 0.52
2 A' 3240 3129 5.50 124.37 0.13 0.23
3 A' 1689 1631 13.40 18.83 0.50 0.67
4 A' 1384 1337 15.45 11.35 0.73 0.84
5 A' 1123 1084 130.58 3.17 0.65 0.79
6 A' 903 872 7.28 15.09 0.14 0.24
7 A" 3339 3225 12.67 68.53 0.75 0.86
8 A" 1252 1209 0.02 14.88 0.75 0.86
9 A" 380 366 216.87 10.96 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8376.6 cm-1
Scaled (by 0.9657) Zero Point Vibrational Energy (zpe) 8089.3 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 TPSSh/3-21G*
ABC
5.92628 0.77291 0.76962

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.012 0.750 0.000
O2 -0.012 -0.777 0.000
H3 -0.999 -0.936 0.000
H4 0.586 0.950 0.826
H5 0.586 0.950 -0.826

Atom - Atom Distances (Å)
  N1 O2 H3 H4 H5
N11.52681.95431.03881.0388
O21.52681.00012.00502.0050
H31.95431.00012.59832.5983
H41.03882.00502.59831.6522
H51.03882.00502.59831.6522

picture of hydroxylamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 O2 H3 99.190 O2 N1 H4 101.079
O2 N1 H5 101.079 H4 N1 H5 105.360
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.479      
2 O -0.464      
3 H 0.359      
4 H 0.292      
5 H 0.292      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.259 0.614 0.000 0.666
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.532 0.593 0.000
y 0.593 2.163 0.000
z 0.000 0.000 1.361


<r2> (average value of r2) Å2
<r2> 21.563
(<r2>)1/2 4.644