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All results from a given calculation for NH2OH (hydroxylamine)

using model chemistry: mPW1PW91/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/cc-pVDZ
 hartrees
Energy at 0K-131.685186
Energy at 298.15K 
HF Energy-131.685186
Nuclear repulsion energy39.476959
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 mPW1PW91/cc-pVDZ
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' 3830 3670 42.59 57.96 0.30 0.46
2 A' 3443 3299 2.11 107.85 0.11 0.20
3 A' 1675 1605 11.90 9.00 0.57 0.73
4 A' 1418 1359 23.56 3.57 0.74 0.85
5 A' 1168 1120 124.17 2.31 0.75 0.86
6 A' 978 937 11.95 11.31 0.18 0.31
7 A" 3523 3376 0.15 63.39 0.75 0.86
8 A" 1349 1292 0.02 7.52 0.75 0.86
9 A" 398 382 172.03 4.29 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8890.6 cm-1
Scaled (by 0.9583) Zero Point Vibrational Energy (zpe) 8519.9 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 mPW1PW91/cc-pVDZ
ABC
6.36611 0.86513 0.86408

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.012 0.697 0.000
O2 -0.012 -0.729 0.000
H3 -0.955 -0.930 0.000
H4 0.569 0.941 0.807
H5 0.569 0.941 -0.807

Atom - Atom Distances (Å)
  N1 O2 H3 H4 H5
N11.42601.88071.02371.0237
O21.42600.96441.94381.9438
H31.88070.96442.54482.5448
H41.02371.94382.54481.6137
H51.02371.94382.54481.6137

picture of hydroxylamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 O2 H3 102.033 O2 N1 H4 103.811
O2 N1 H5 103.811 H4 N1 H5 104.027
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.107      
2 O -0.287      
3 H 0.175      
4 H 0.110      
5 H 0.110      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.107 0.549 0.000 0.560
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -10.626 3.647 0.000
y 3.647 -12.263 0.000
z 0.000 0.000 -11.259
Traceless
 xyz
x 1.134 3.647 0.000
y 3.647 -1.320 0.000
z 0.000 0.000 0.186
Polar
3z2-r20.372
x2-y21.637
xy3.647
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.694 0.447 0.000
y 0.447 2.222 0.000
z 0.000 0.000 1.582


<r2> (average value of r2) Å2
<r2> 20.263
(<r2>)1/2 4.501