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All results from a given calculation for NH2OH (hydroxylamine)

using model chemistry: HF/SDD

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/SDD
 hartrees
Energy at 0K-130.963767
Energy at 298.15K 
HF Energy-130.963767
Nuclear repulsion energy39.497800
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 HF/SDD
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' 4071 3666 45.68 77.39 0.32 0.48
2 A' 3751 3377 0.13 103.09 0.14 0.25
3 A' 1847 1663 27.70 10.74 0.73 0.84
4 A' 1483 1336 43.47 6.01 0.64 0.78
5 A' 1172 1056 173.09 12.78 0.55 0.71
6 A' 1029 926 69.99 27.95 0.14 0.25
7 A" 3880 3493 4.11 53.30 0.75 0.86
8 A" 1412 1272 0.03 10.90 0.75 0.86
9 A" 505 455 303.17 9.68 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9575.6 cm-1
Scaled (by 0.9004) Zero Point Vibrational Energy (zpe) 8621.9 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 HF/SDD
ABC
6.79045 0.85656 0.84416

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/SDD

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.003 0.699 0.000
O2 -0.003 -0.732 0.000
H3 -0.914 -1.009 0.000
H4 0.478 0.988 0.829
H5 0.478 0.988 -0.829

Atom - Atom Distances (Å)
  N1 O2 H3 H4 H5
N11.43081.93571.00121.0012
O21.43080.95251.96961.9696
H31.93570.95252.57202.5720
H41.00121.96962.57201.6584
H51.00121.96962.57201.6584

picture of hydroxylamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 O2 H3 106.896 O2 N1 H4 106.829
O2 N1 H5 106.829 H4 N1 H5 111.826
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/SDD Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.492      
2 O -0.553      
3 H 0.407      
4 H 0.319      
5 H 0.319      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.057 0.918 0.000 0.920
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.523 4.615 0.000
y 4.615 -12.403 0.000
z 0.000 0.000 -11.234
Traceless
 xyz
x 0.296 4.615 0.000
y 4.615 -1.025 0.000
z 0.000 0.000 0.729
Polar
3z2-r21.457
x2-y20.881
xy4.615
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.357 0.459 0.000
y 0.459 2.323 0.000
z 0.000 0.000 1.407


<r2> (average value of r2) Å2
<r2> 20.666
(<r2>)1/2 4.546