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All results from a given calculation for H2O (Water)

using model chemistry: PBE1PBE/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 PBE1PBE/6-31G*
 hartrees
Energy at 0K-76.325660
Energy at 298.15K-76.326757
HF Energy-76.325660
Nuclear repulsion energy9.126530
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 PBE1PBE/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 3801 3612 4.32 75.21 0.18 0.30
2 A1 1722 1637 82.05 7.34 0.54 0.70
3 B2 3927 3732 29.64 37.45 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4724.9 cm-1
Scaled (by 0.9503) Zero Point Vibrational Energy (zpe) 4490.1 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 PBE1PBE/6-31G*
ABC
26.60897 14.50872 9.38920

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.119
H2 0.000 0.759 -0.476
H3 0.000 -0.759 -0.476

Atom - Atom Distances (Å)
  O1 H2 H3
O10.96450.9645
H20.96451.5185
H30.96451.5185

picture of Water state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 O1 H3 103.838
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.803      
2 H 0.402      
3 H 0.402      


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 -2.126 2.126
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -7.212 0.000 0.000
y 0.000 -4.232 0.000
z 0.000 0.000 -5.975
Traceless
 xyz
x -2.108 0.000 0.000
y 0.000 2.361 0.000
z 0.000 0.000 -0.253
Polar
3z2-r2-0.507
x2-y2-2.979
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.424 0.000 0.000
y 0.000 1.060 0.000
z 0.000 0.000 0.786


<r2> (average value of r2) Å2
<r2> 5.346
(<r2>)1/2 2.312