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All results from a given calculation for NH2OH (hydroxylamine)

using model chemistry: B2PLYP/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 B2PLYP/6-31G*
 hartrees
Energy at 0K-131.573174
Energy at 298.15K 
HF Energy-131.459212
Nuclear repulsion energy39.113237
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 B2PLYP/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' 3778 3586 27.96 65.22 0.32 0.48
2 A' 3452 3277 2.42 105.07 0.13 0.23
3 A' 1721 1633 18.67 12.66 0.57 0.72
4 A' 1449 1375 20.86 5.66 0.74 0.85
5 A' 1202 1141 148.53 2.56 0.71 0.83
6 A' 946 898 11.08 13.06 0.19 0.32
7 A" 3548 3368 0.90 62.18 0.75 0.86
8 A" 1353 1285 0.01 10.27 0.75 0.86
9 A" 413 392 198.51 5.22 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8930.8 cm-1
Scaled (by 0.9492) Zero Point Vibrational Energy (zpe) 8477.2 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 B2PLYP/6-31G*
ABC
6.32569 0.84340 0.84253

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.011 0.710 0.000
O2 -0.011 -0.739 0.000
H3 -0.960 -0.934 0.000
H4 0.565 0.940 0.810
H5 0.565 0.940 -0.810

Atom - Atom Distances (Å)
  N1 O2 H3 H4 H5
N11.44911.89821.02031.0203
O21.44910.96851.95171.9517
H31.89820.96852.54872.5487
H41.02031.95172.54871.6198
H51.02031.95172.54871.6198

picture of hydroxylamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 O2 H3 101.618 O2 N1 H4 103.061
O2 N1 H5 103.061 H4 N1 H5 105.078
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.508      
2 O -0.565      
3 H 0.423      
4 H 0.325      
5 H 0.325      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.167 0.585 0.000 0.608
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -10.832 3.913 -0.003
y 3.913 -12.518 -0.005
z -0.003 -0.005 -11.449
Traceless
 xyz
x 1.151 3.913 -0.003
y 3.913 -1.378 -0.005
z -0.003 -0.005 0.227
Polar
3z2-r20.453
x2-y21.686
xy3.913
xz-0.003
yz-0.005


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.657 0.462 0.001
y 0.462 2.217 0.001
z 0.001 0.001 1.598


<r2> (average value of r2) Å2
<r2> 20.659
(<r2>)1/2 4.545