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All results from a given calculation for NH2OH (hydroxylamine)

using model chemistry: BLYP/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at BLYP/3-21G*
 hartrees
Energy at 0K-130.936891
Energy at 298.15K 
HF Energy-130.936891
Nuclear repulsion energy37.122470
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 BLYP/3-21G*
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' 3282 3260 4.38 74.15 0.37 0.54
2 A' 3086 3066 14.41 128.14 0.12 0.22
3 A' 1629 1619 8.11 22.35 0.46 0.63
4 A' 1344 1335 12.12 12.81 0.74 0.85
5 A' 1093 1086 113.36 3.39 0.64 0.78
6 A' 840 834 4.49 13.34 0.14 0.24
7 A" 3185 3164 25.54 69.59 0.75 0.86
8 A" 1203 1195 0.09 16.61 0.75 0.86
9 A" 348 346 193.42 11.41 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8004.9 cm-1
Scaled (by 0.9935) Zero Point Vibrational Energy (zpe) 7952.9 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 BLYP/3-21G*
ABC
5.76433 0.75276 0.74739

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.013 0.763 0.000
O2 -0.013 -0.789 0.000
H3 -1.015 -0.935 0.000
H4 0.605 0.951 0.828
H5 0.605 0.951 -0.828

Atom - Atom Distances (Å)
  N1 O2 H3 H4 H5
N11.55171.97111.05021.0502
O21.55171.01232.02322.0232
H31.97111.01232.62002.6200
H41.05022.02322.62001.6560
H51.05022.02322.62001.6560

picture of hydroxylamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 O2 H3 98.290 O2 N1 H4 100.303
O2 N1 H5 100.303 H4 N1 H5 104.074
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.439      
2 O -0.427      
3 H 0.334      
4 H 0.266      
5 H 0.266      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.284 0.554 0.000 0.623
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -10.482 3.862 0.000
y 3.862 -12.396 0.000
z 0.000 0.000 -11.275
Traceless
 xyz
x 1.353 3.862 0.000
y 3.862 -1.518 0.000
z 0.000 0.000 0.164
Polar
3z2-r20.329
x2-y21.914
xy3.862
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.644 0.612 0.000
y 0.612 2.192 0.000
z 0.000 0.000 1.415


<r2> (average value of r2) Å2
<r2> 21.979
(<r2>)1/2 4.688