return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
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All results from a given calculation for CaOH (Calcium monohydroxide)

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

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C*V 2Σ+
Energy calculated at CISD/6-31G(2df,p)
 hartrees
Energy at 0K-752.522255
Energy at 298.15K-752.523538
HF Energy-752.198313
Nuclear repulsion energy49.944742
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 CISD/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 Σ 4128 4128 27.30      
2 Σ 657 657 96.29      
3 Π 398 398 108.28      
3 Π 398 398 108.28      

Unscaled Zero Point Vibrational Energy (zpe) 2790.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 2790.3 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 CISD/6-31G(2df,p)
B
0.32228

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Ca1 0.000 0.000 0.660
O2 0.000 0.000 -1.361
H3 0.000 0.000 -2.305

Atom - Atom Distances (Å)
  Ca1 O2 H3
Ca12.02122.9651
O22.02120.9439
H32.96510.9439

picture of Calcium monohydroxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Ca1 O2 H3 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability