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All results from a given calculation for NH2OH (hydroxylamine)

using model chemistry: B3PW91/6-31G(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 B3PW91/6-31G(2df,p)
 hartrees
Energy at 0K-131.674585
Energy at 298.15K 
HF Energy-131.674585
Nuclear repulsion energy39.446292
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 B3PW91/6-31G(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' 3844 3696 33.11 57.27 0.28 0.44
2 A' 3445 3312 2.16 99.23 0.11 0.20
3 A' 1674 1609 13.14 9.01 0.53 0.69
4 A' 1426 1371 24.98 3.12 0.74 0.85
5 A' 1172 1127 133.28 2.36 0.75 0.86
6 A' 970 933 12.60 9.99 0.17 0.29
7 A" 3529 3393 0.02 56.30 0.75 0.86
8 A" 1346 1294 0.01 7.07 0.75 0.86
9 A" 403 387 159.48 2.99 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8904.1 cm-1
Scaled (by 0.9614) Zero Point Vibrational Energy (zpe) 8560.4 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 B3PW91/6-31G(2df,p)
ABC
6.41362 0.86014 0.85999

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.011 0.699 0.000
O2 -0.011 -0.731 0.000
H3 -0.951 -0.933 0.000
H4 0.560 0.945 0.808
H5 0.560 0.945 -0.808

Atom - Atom Distances (Å)
  N1 O2 H3 H4 H5
N11.43061.88371.01961.0196
O21.43060.96091.94641.9464
H31.88370.96092.54222.5422
H41.01961.94642.54221.6160
H51.01961.94642.54221.6160

picture of hydroxylamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 O2 H3 102.142 O2 N1 H4 103.928
O2 N1 H5 103.928 H4 N1 H5 104.841
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.414      
2 O -0.446      
3 H 0.321      
4 H 0.270      
5 H 0.270      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.112 0.511 0.000 0.524
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -10.747 3.620 0.000
y 3.620 -12.182 0.000
z 0.000 0.000 -11.277
Traceless
 xyz
x 0.982 3.620 0.000
y 3.620 -1.170 0.000
z 0.000 0.000 0.188
Polar
3z2-r20.377
x2-y21.435
xy3.620
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.867 0.415 0.000
y 0.415 2.396 0.000
z 0.000 0.000 1.837


<r2> (average value of r2) Å2
<r2> 20.318
(<r2>)1/2 4.508