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All results from a given calculation for NH2OH (hydroxylamine)

using model chemistry: HF/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 HF/6-31G(2df,p)
 hartrees
Energy at 0K-131.000589
Energy at 298.15K 
HF Energy-131.000589
Nuclear repulsion energy40.241646
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/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' 4179 3784 60.89 53.75 0.29 0.44
2 A' 3708 3358 1.85 90.24 0.12 0.22
3 A' 1822 1650 15.97 5.67 0.62 0.76
4 A' 1541 1396 35.45 1.82 0.75 0.86
5 A' 1253 1135 157.96 3.39 0.63 0.77
6 A' 1121 1015 20.95 15.89 0.20 0.33
7 A" 3794 3435 1.26 52.26 0.75 0.86
8 A" 1467 1329 0.24 4.98 0.75 0.86
9 A" 436 394 186.74 2.51 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9660.5 cm-1
Scaled (by 0.9055) Zero Point Vibrational Energy (zpe) 8747.6 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/6-31G(2df,p)
ABC
6.76675 0.89613 0.89104

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.009 0.683 0.000
O2 -0.009 -0.715 0.000
H3 -0.919 -0.948 0.000
H4 0.527 0.947 0.803
H5 0.527 0.947 -0.803

Atom - Atom Distances (Å)
  N1 O2 H3 H4 H5
N11.39801.86791.00101.0010
O21.39800.93981.92211.9221
H31.86790.93982.51572.5157
H41.00101.92212.51571.6057
H51.00101.92212.51571.6057

picture of hydroxylamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 O2 H3 104.355 O2 N1 H4 105.294
O2 N1 H5 105.294 H4 N1 H5 106.662
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.363      
2 O -0.549      
3 H 0.346      
4 H 0.283      
5 H 0.283      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.061 0.618 0.000 0.621
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -10.858 3.780 0.000
y 3.780 -12.059 0.000
z 0.000 0.000 -11.198
Traceless
 xyz
x 0.771 3.780 0.000
y 3.780 -1.032 0.000
z 0.000 0.000 0.261
Polar
3z2-r20.521
x2-y21.202
xy3.780
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.701 0.387 0.000
y 0.387 2.310 0.000
z 0.000 0.000 1.726


<r2> (average value of r2) Å2
<r2> 19.842
(<r2>)1/2 4.454