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All results from a given calculation for H2O (Water)

using model chemistry: PBEPBE/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at PBEPBE/6-31G
 hartrees
Energy at 0K-76.299796
Energy at 298.15K-76.300891
HF Energy-76.299796
Nuclear repulsion energy8.923412
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 PBEPBE/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 A1 3500 3451 9.50 93.66 0.21 0.34
2 A1 1593 1571 54.99 15.46 0.43 0.60
3 B2 3668 3617 4.16 40.57 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4380.2 cm-1
Scaled (by 0.9862) Zero Point Vibrational Energy (zpe) 4319.7 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 PBEPBE/6-31G
ABC
27.38335 13.32289 8.96239

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.117
H2 0.000 0.792 -0.469
H3 0.000 -0.792 -0.469

Atom - Atom Distances (Å)
  O1 H2 H3
O10.98570.9857
H20.98571.5846
H30.98571.5846

picture of Water state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 O1 H3 106.985
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.706      
2 H 0.353      
3 H 0.353      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -2.375 2.375
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -7.244 0.000 0.000
y 0.000 -4.194 0.000
z 0.000 0.000 -6.238
Traceless
 xyz
x -2.028 0.000 0.000
y 0.000 2.546 0.000
z 0.000 0.000 -0.519
Polar
3z2-r2-1.037
x2-y2-3.049
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.221 0.000 0.000
y 0.000 1.142 0.000
z 0.000 0.000 0.750


<r2> (average value of r2) Å2
<r2> 5.486
(<r2>)1/2 2.342