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All results from a given calculation for H2O (Water)

using model chemistry: SVWN/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 SVWN/3-21G*
 hartrees
Energy at 0K-75.606430
Energy at 298.15K-75.607525
HF Energy-75.606430
Nuclear repulsion energy8.773684
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 SVWN/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 3354 3354 16.38      
2 A1 1624 1624 35.74      
3 B2 3515 3515 0.37      

Unscaled Zero Point Vibrational Energy (zpe) 4246.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4246.4 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 SVWN/3-21G*
ABC
24.58543 13.41038 8.67727

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.124
H2 0.000 0.790 -0.495
H3 0.000 -0.790 -0.495

Atom - Atom Distances (Å)
  O1 H2 H3
O11.00331.0033
H21.00331.5794
H31.00331.5794

picture of Water state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 O1 H3 103.828
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at SVWN/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.653      
2 H 0.326      
3 H 0.326      


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 -2.301 2.301
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -6.908 0.000 0.000
y 0.000 -4.221 0.000
z 0.000 0.000 -5.838
Traceless
 xyz
x -1.878 0.000 0.000
y 0.000 2.152 0.000
z 0.000 0.000 -0.274
Polar
3z2-r2-0.547
x2-y2-2.687
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 1.117 0.000
z 0.000 0.000 0.686


<r2> (average value of r2) Å2
<r2> 5.393
(<r2>)1/2 2.322