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All results from a given calculation for H2O (Water)

using model chemistry: CCSD(T)/CEP-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CCSD(T)/CEP-31G
 hartrees
Energy at 0K-16.948626
Energy at 298.15K-16.949722
HF Energy-16.825632
Nuclear repulsion energy6.772898
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 CCSD(T)/CEP-31G
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 3645 3438        
2 A1 1622 1530        
3 B2 3812 3595        

Unscaled Zero Point Vibrational Energy (zpe) 4539.9 cm-1
Scaled (by 0.9431) Zero Point Vibrational Energy (zpe) 4281.5 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 CCSD(T)/CEP-31G
ABC
28.89938 12.95840 8.94672

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/CEP-31G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.114
H2 0.000 0.803 -0.457
H3 0.000 -0.803 -0.457

Atom - Atom Distances (Å)
  O1 H2 H3
O10.98550.9855
H20.98551.6067
H30.98551.6067

picture of Water state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 O1 H3 109.207
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability