return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for NH2OH (hydroxylamine)

using model chemistry: BLYP/daug-cc-pVTZ

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/daug-cc-pVTZ
 hartrees
Energy at 0K-131.750509
Energy at 298.15K 
HF Energy-131.750509
Nuclear repulsion energy38.516701
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/daug-cc-pVTZ
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' 3656 3656 32.27 69.75 0.19 0.32
2 A' 3315 3315 3.94 137.81 0.07 0.14
3 A' 1608 1608 13.61 4.98 0.53 0.69
4 A' 1346 1346 20.96 4.19 0.10 0.19
5 A' 1117 1117 110.24 1.71 0.04 0.08
6 A' 833 833 12.00 10.93 0.24 0.39
7 A" 3389 3389 0.77 61.43 0.75 0.86
8 A" 1269 1269 0.01 2.41 0.75 0.86
9 A" 388 388 153.05 0.04 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8459.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8459.9 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/daug-cc-pVTZ
ABC
6.24613 0.81103 0.81040

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/daug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.011 0.726 0.000
O2 -0.011 -0.755 0.000
H3 -0.964 -0.950 0.000
H4 0.567 0.955 0.816
H5 0.567 0.955 -0.816

Atom - Atom Distances (Å)
  N1 O2 H3 H4 H5
N11.48071.92811.02601.0260
O21.48070.97271.98071.9807
H31.92810.97272.57682.5768
H41.02601.98072.57681.6316
H51.02601.98072.57681.6316

picture of hydroxylamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 O2 H3 101.589 O2 N1 H4 102.887
O2 N1 H5 102.887 H4 N1 H5 105.328
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.078      
2 O -0.741      
3 H 0.350      
4 H 0.234      
5 H 0.234      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.144 0.585 0.000 0.603
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.696 3.736 0.000
y 3.736 -13.243 0.000
z 0.000 0.000 -12.132
Traceless
 xyz
x 0.991 3.736 0.000
y 3.736 -1.328 0.000
z 0.000 0.000 0.337
Polar
3z2-r20.674
x2-y21.546
xy3.736
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.958 0.252 0.000
y 0.252 3.549 0.000
z 0.000 0.000 2.759


<r2> (average value of r2) Å2
<r2> 21.597
(<r2>)1/2 4.647