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 H2OO (water oxide)

using model chemistry: PBEPBEultrafine/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 PBEPBEultrafine/daug-cc-pVTZ
 hartrees
Energy at 0K-151.389755
Energy at 298.15K 
HF Energy-151.389755
Nuclear repulsion energy35.441656
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 PBEPBEultrafine/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' 3546 3546 36.24 155.85 0.08 0.16
2 A' 1551 1551 79.38 6.37 0.65 0.78
3 A' 911 911 66.57 11.05 0.28 0.43
4 A' 643 643 73.45 3.51 0.71 0.83
5 A" 3639 3639 157.32 35.10 0.75 0.86
6 A" 823 823 0.14 5.65 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 5556.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 5556.0 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 PBEPBEultrafine/daug-cc-pVTZ
ABC
9.48768 0.80329 0.77723

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.062 -0.658 0.000
O2 0.062 0.870 0.000
H3 -0.495 -0.846 0.784
H4 -0.495 -0.846 -0.784

Atom - Atom Distances (Å)
  O1 O2 H3 H4
O11.52840.97990.9799
O21.52841.96691.9669
H30.97991.96691.5688
H40.97991.96691.5688

picture of water oxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O2 O1 H3 101.024 O2 O1 H4 101.024
H3 O1 H4 106.357
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O 0.151      
2 O -0.666      
3 H 0.258      
4 H 0.258      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.955 -4.341 0.000 4.762
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.399 1.772 0.000
y 1.772 -12.202 0.000
z 0.000 0.000 -10.297
Traceless
 xyz
x -1.150 1.772 0.000
y 1.772 -0.854 0.000
z 0.000 0.000 2.004
Polar
3z2-r24.008
x2-y2-0.198
xy1.772
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.511 0.168 0.000
y 0.168 3.273 0.000
z 0.000 0.000 2.642


<r2> (average value of r2) Å2
<r2> 20.000
(<r2>)1/2 4.472