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All results from a given calculation for H2O (Water)

using model chemistry: B3PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3PW91/6-31G*
 hartrees
Energy at 0K-76.381613
Energy at 298.15K-76.382711
HF Energy-76.381613
Nuclear repulsion energy9.113082
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 B3PW91/6-31G*
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 3773 3609 3.35      
2 A1 1715 1640 80.67      
3 B2 3899 3730 26.57      

Unscaled Zero Point Vibrational Energy (zpe) 4693.1 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 4489.9 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 B3PW91/6-31G*
ABC
26.54846 14.46038 9.36142

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.119
H2 0.000 0.761 -0.476
H3 0.000 -0.761 -0.476

Atom - Atom Distances (Å)
  O1 H2 H3
O10.96600.9660
H20.96601.5210
H30.96601.5210

picture of Water state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 O1 H3 103.868
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.798      
2 H 0.399      
3 H 0.399      


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 0.000 0.000 -2.179 2.179


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -7.200 0.000 0.000
y 0.000 -4.225 0.000
z 0.000 0.000 -5.969
Traceless
 xyz
x -2.103 0.000 0.000
y 0.000 2.359 0.000
z 0.000 0.000 -0.257
Polar
3z2-r2-0.513
x2-y2-2.975
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.423 0.000 0.000
y 0.000 1.066 0.000
z 0.000 0.000 0.789


<r2> (average value of r2) Å2
<r2> 5.345
(<r2>)1/2 2.312