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All results from a given calculation for H2O (Water)

using model chemistry: B3LYPultrafine/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3LYPultrafine/3-21G*
 hartrees
Energy at 0K-75.973965
Energy at 298.15K-75.975062
HF Energy-75.973965
Nuclear repulsion energy8.831897
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 B3LYPultrafine/3-21G*
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 3414 3284 13.70      
2 A1 1693 1629 36.70      
3 B2 3554 3419 1.58      

Unscaled Zero Point Vibrational Energy (zpe) 4330.4 cm-1
Scaled (by 0.962) Zero Point Vibrational Energy (zpe) 4165.9 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 B3LYPultrafine/3-21G*
ABC
24.97765 13.56858 8.79233

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/3-21G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.123
H2 0.000 0.785 -0.491
H3 0.000 -0.785 -0.491

Atom - Atom Distances (Å)
  O1 H2 H3
O10.99670.9967
H20.99671.5702
H30.99671.5702

picture of Water state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 O1 H3 103.942
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.638      
2 H 0.319      
3 H 0.319      


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 -2.239 2.239
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -6.855 0.000 0.000
y 0.000 -4.248 0.000
z 0.000 0.000 -5.825
Traceless
 xyz
x -1.819 0.000 0.000
y 0.000 2.092 0.000
z 0.000 0.000 -0.273
Polar
3z2-r2-0.546
x2-y2-2.607
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.119 0.000 0.000
y 0.000 1.114 0.000
z 0.000 0.000 0.667


<r2> (average value of r2) Å2
<r2> 5.360
(<r2>)1/2 2.315