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: B2PLYP/TZVP

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/TZVP
 hartrees
Energy at 0K-151.412616
Energy at 298.15K 
HF Energy-151.280309
Nuclear repulsion energy35.168282
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/TZVP
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' 3717 3547 76.93 61.36 0.08 0.14
2 A' 1577 1505 96.60 4.79 0.71 0.83
3 A' 873 834 92.28 5.55 0.49 0.65
4 A' 686 655 104.34 6.08 0.19 0.32
5 A" 3825 3651 175.80 24.51 0.75 0.86
6 A" 834 796 1.54 6.20 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 5756.3 cm-1
Scaled (by 0.9544) Zero Point Vibrational Energy (zpe) 5493.8 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/TZVP
ABC
9.81889 0.78060 0.75492

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.059 -0.665 0.000
O2 0.059 0.885 0.000
H3 -0.474 -0.878 0.780
H4 -0.474 -0.878 -0.780

Atom - Atom Distances (Å)
  O1 O2 H3 H4
O11.54960.96870.9687
O21.54962.00032.0003
H30.96872.00031.5596
H40.96872.00031.5596

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 102.730 O2 O1 H4 102.730
H3 O1 H4 107.224
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.205      
2 O -0.467      
3 H 0.336      
4 H 0.336      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.178 -4.398 0.000 4.908
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.075 1.868 0.002
y 1.868 -11.728 0.002
z 0.002 0.002 -9.810
Traceless
 xyz
x -1.306 1.868 0.002
y 1.868 -0.786 0.002
z 0.002 0.002 2.091
Polar
3z2-r24.183
x2-y2-0.347
xy1.868
xz0.002
yz0.002


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.125 0.156 -0.001
y 0.156 2.497 -0.000
z -0.001 -0.000 1.376


<r2> (average value of r2) Å2
<r2> 20.062
(<r2>)1/2 4.479