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All results from a given calculation for NH2OH (hydroxylamine)

using model chemistry: HF/6-31G**

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**
 hartrees
Energy at 0K-130.991662
Energy at 298.15K 
HF Energy-130.991662
Nuclear repulsion energy40.142260
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**
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' 4185 3777 60.64 62.75 0.30 0.46
2 A' 3718 3356 2.19 101.43 0.13 0.23
3 A' 1828 1650 18.76 8.14 0.65 0.79
4 A' 1530 1381 34.50 3.21 0.70 0.82
5 A' 1253 1131 177.79 3.98 0.72 0.84
6 A' 1117 1009 20.79 18.36 0.20 0.34
7 A" 3810 3439 0.27 60.57 0.75 0.86
8 A" 1464 1321 0.13 7.47 0.75 0.86
9 A" 447 404 217.71 4.07 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9675.8 cm-1
Scaled (by 0.9026) Zero Point Vibrational Energy (zpe) 8733.4 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**
ABC
6.73351 0.89128 0.88644

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.009 0.685 0.000
O2 -0.009 -0.717 0.000
H3 -0.922 -0.951 0.000
H4 0.529 0.946 0.804
H5 0.529 0.946 -0.804

Atom - Atom Distances (Å)
  N1 O2 H3 H4 H5
N11.40251.87371.00181.0018
O21.40250.94281.92381.9238
H31.87370.94282.51962.5196
H41.00181.92382.51961.6083
H51.00181.92382.51961.6083

picture of hydroxylamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 O2 H3 104.339 O2 N1 H4 105.064
O2 N1 H5 105.064 H4 N1 H5 106.780
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.387      
2 O -0.538      
3 H 0.357      
4 H 0.284      
5 H 0.284      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.080 0.677 0.000 0.682
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -10.866 3.980 0.000
y 3.980 -12.232 0.000
z 0.000 0.000 -11.229
Traceless
 xyz
x 0.864 3.980 0.000
y 3.980 -1.185 0.000
z 0.000 0.000 0.321
Polar
3z2-r20.642
x2-y21.366
xy3.980
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.518 0.438 0.000
y 0.438 2.169 0.000
z 0.000 0.000 1.537


<r2> (average value of r2) Å2
<r2> 19.946
(<r2>)1/2 4.466