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All results from a given calculation for NH2OH (hydroxylamine)

using model chemistry: HF/TZVP

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/TZVP
 hartrees
Energy at 0K-131.041094
Energy at 298.15K 
HF Energy-131.041094
Nuclear repulsion energy40.193569
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/TZVP
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' 4166 3785 66.15 54.35 0.30 0.46
2 A' 3709 3370 1.28 94.40 0.12 0.22
3 A' 1825 1658 21.48 5.74 0.74 0.85
4 A' 1518 1380 37.20 1.98 0.75 0.85
5 A' 1233 1121 156.65 4.78 0.36 0.53
6 A' 1115 1013 24.39 19.11 0.27 0.42
7 A" 3793 3446 2.51 55.10 0.75 0.86
8 A" 1460 1326 0.38 6.47 0.75 0.86
9 A" 459 417 224.40 1.95 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9638.9 cm-1
Scaled (by 0.9086) Zero Point Vibrational Energy (zpe) 8757.9 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/TZVP
ABC
6.78168 0.89326 0.88728

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.008 0.683 0.000
O2 -0.008 -0.717 0.000
H3 -0.919 -0.953 0.000
H4 0.521 0.952 0.805
H5 0.521 0.952 -0.805

Atom - Atom Distances (Å)
  N1 O2 H3 H4 H5
N11.40031.87240.99990.9999
O21.40030.94091.92661.9266
H31.87240.94092.51932.5193
H40.99991.92662.51931.6101
H50.99991.92662.51931.6101

picture of hydroxylamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 O2 H3 104.507 O2 N1 H4 105.564
O2 N1 H5 105.564 H4 N1 H5 107.247
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.303      
2 O -0.391      
3 H 0.293      
4 H 0.201      
5 H 0.201      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.050 0.703 0.000 0.705
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.183 4.086 0.000
y 4.086 -12.531 0.000
z 0.000 0.000 -11.335
Traceless
 xyz
x 0.750 4.086 0.000
y 4.086 -1.271 0.000
z 0.000 0.000 0.522
Polar
3z2-r21.043
x2-y21.347
xy4.086
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.780 0.331 0.000
y 0.331 2.371 0.000
z 0.000 0.000 1.736


<r2> (average value of r2) Å2
<r2> 20.080
(<r2>)1/2 4.481