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All results from a given calculation for NH2OH (hydroxylamine)

using model chemistry: TPSSh/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 TPSSh/6-31G(2df,p)
 hartrees
Energy at 0K-131.720748
Energy at 298.15K 
HF Energy-131.720748
Nuclear repulsion energy39.106620
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/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' 3776 3644 25.06 60.12 0.29 0.45
2 A' 3398 3279 2.85 104.31 0.11 0.20
3 A' 1671 1612 12.82 9.83 0.51 0.68
4 A' 1419 1369 19.03 3.76 0.74 0.85
5 A' 1177 1136 127.20 1.93 0.74 0.85
6 A' 928 896 10.32 11.23 0.19 0.31
7 A" 3477 3356 0.87 59.70 0.75 0.86
8 A" 1328 1281 0.01 7.70 0.75 0.86
9 A" 383 369 154.70 3.27 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8778.3 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 8471.1 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/6-31G(2df,p)
ABC
6.31947 0.84333 0.84185

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.012 0.710 0.000
O2 -0.012 -0.740 0.000
H3 -0.958 -0.931 0.000
H4 0.570 0.940 0.808
H5 0.570 0.940 -0.808

Atom - Atom Distances (Å)
  N1 O2 H3 H4 H5
N11.44971.89411.02241.0224
O21.44970.96531.95291.9529
H31.89410.96532.54762.5476
H41.02241.95292.54761.6162
H51.02241.95292.54761.6162

picture of hydroxylamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 O2 H3 101.422 O2 N1 H4 103.002
O2 N1 H5 103.002 H4 N1 H5 104.443
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.409      
2 O -0.447      
3 H 0.320      
4 H 0.268      
5 H 0.268      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.138 0.517 0.000 0.535
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 1.924 0.429 0.000
y 0.429 2.473 0.000
z 0.000 0.000 1.874


<r2> (average value of r2) Å2
<r2> 20.567
(<r2>)1/2 4.535