return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for HDO (Water-d1)

using model chemistry: PBEPBEultrafine/6-31G(2df,p)

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/6-31G(2df,p)
 hartrees
Energy at 0K-76.339513
Energy at 298.15K-76.338991
HF Energy-76.339513
Nuclear repulsion energy9.075796
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/6-31G(2df,p)
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3761 3722 12.75      
2 A' 2730 2702 5.59      
3 A' 1438 1423 54.69      

Unscaled Zero Point Vibrational Energy (zpe) 3964.4 cm-1
Scaled (by 0.9897) Zero Point Vibrational Energy (zpe) 3923.5 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/6-31G(2df,p)
ABC
21.86165 9.03055 6.39070

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.121 0.000
H2 0.758 -0.485 0.000
H3 -0.758 -0.485 0.000

Atom - Atom Distances (Å)
  O1 H2 H3
O10.97020.9702
H20.97021.5157
H30.97021.5157

picture of Water-d1 state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 O1 H3 102.726
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.581      
2 H 0.290      
3 H 0.290      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 -1.816 0.000 1.816
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -4.359 0.000 0.000
y 0.000 -5.924 0.000
z 0.000 0.000 -7.151
Traceless
 xyz
x 2.178 0.000 0.000
y 0.000 -0.169 0.000
z 0.000 0.000 -2.009
Polar
3z2-r2-4.018
x2-y21.565
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.223 0.000 0.000
y 0.000 0.986 0.000
z 0.000 0.000 0.685


<r2> (average value of r2) Å2
<r2> 5.366
(<r2>)1/2 2.316