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All results from a given calculation for D2O (Deuterium oxide)

using model chemistry: PBEPBE/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 PBEPBE/3-21G*
 hartrees
Energy at 0K-75.886478
Energy at 298.15K-75.884329
Nuclear repulsion energy8.736093
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 PBEPBE/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 2374 2264 9.27      
2 A1 1221 1165 15.95      
3 B2 2523 2406 1.11      

Unscaled Zero Point Vibrational Energy (zpe) 3059.3 cm-1
Scaled (by 0.9535) Zero Point Vibrational Energy (zpe) 2917.0 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 PBEPBE/3-21G*
ABC
13.17968 6.76554 4.47063

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.126
H2 0.000 0.786 -0.504
H3 0.000 -0.786 -0.504

Atom - Atom Distances (Å)
  O1 H2 H3
O11.00801.0080
H21.00801.5730
H31.00801.5730

picture of Deuterium oxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 O1 H3 102.567
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.625      
2 H 0.313      
3 H 0.313      


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 -2.209 2.209
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -6.899 0.000 0.000
y 0.000 -4.332 0.000
z 0.000 0.000 -5.817
Traceless
 xyz
x -1.825 0.000 0.000
y 0.000 2.026 0.000
z 0.000 0.000 -0.201
Polar
3z2-r2-0.403
x2-y2-2.567
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.120 0.000 0.000
y 0.000 1.135 0.000
z 0.000 0.000 0.715


<r2> (average value of r2) Å2
<r2> 5.422
(<r2>)1/2 2.329