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All results from a given calculation for H2O (Water)

using model chemistry: CCSD/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-76.324556
Energy at 298.15K-76.325654
HF Energy-76.057134
Nuclear repulsion energy9.197221
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/cc-pVTZ
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 3876 3648 4.48      
2 A1 1678 1580 66.10      
3 B2 3979 3745 43.31      

Unscaled Zero Point Vibrational Energy (zpe) 4766.7 cm-1
Scaled (by 0.9412) Zero Point Vibrational Energy (zpe) 4486.4 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 CCSD/cc-pVTZ
ABC
27.05815 14.72324 9.53495

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.118
H2 0.000 0.754 -0.472
H3 0.000 -0.754 -0.472

Atom - Atom Distances (Å)
  O1 H2 H3
O10.95710.9571
H20.95711.5074
H30.95711.5074

picture of Water state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 O1 H3 103.896
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability