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All results from a given calculation for H2O (Water)

using model chemistry: PBEPBEultrafine/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at PBEPBEultrafine/6-311+G(3df,2p)
 hartrees
Energy at 0K-76.377225
Energy at 298.15K-76.378321
HF Energy-76.377225
Nuclear repulsion energy9.085914
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/6-311+G(3df,2p)
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 3725 3725 3.60 82.66 0.09 0.17
2 A1 1592 1592 67.00 2.67 0.57 0.72
3 B2 3832 3832 50.29 28.99 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4574.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4574.7 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 PBEPBEultrafine/6-311+G(3df,2p)
ABC
26.68912 14.28212 9.30353

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/6-311+G(3df,2p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.119
H2 0.000 0.765 -0.475
H3 0.000 -0.765 -0.475

Atom - Atom Distances (Å)
  O1 H2 H3
O10.96870.9687
H20.96871.5305
H30.96871.5305

picture of Water state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 O1 H3 104.359
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.454      
2 H 0.227      
3 H 0.227      


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 -1.878 1.878
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -7.893 0.000 0.000
y 0.000 -4.513 0.000
z 0.000 0.000 -6.506
Traceless
 xyz
x -2.384 0.000 0.000
y 0.000 2.687 0.000
z 0.000 0.000 -0.303
Polar
3z2-r2-0.605
x2-y2-3.380
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.310 0.000 0.000
y 0.000 1.410 0.000
z 0.000 0.000 1.285


<r2> (average value of r2) Å2
<r2> 5.673
(<r2>)1/2 2.382