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All results from a given calculation for CaH2 (Calcium Hydride)

using model chemistry: CID/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D*H 1Σg
Energy calculated at CID/3-21G*
 hartrees
Energy at 0K-674.553466
Energy at 298.15K-674.554574
HF Energy-674.516374
Nuclear repulsion energy9.808149
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 CID/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 Σg 1223 1138 0.00      
2 Σu 1216 1132 210.77      
3 Πu 287 267 745.31      
3 Πu 287 267 745.31      

Unscaled Zero Point Vibrational Energy (zpe) 1506.8 cm-1
Scaled (by 0.9305) Zero Point Vibrational Energy (zpe) 1402.1 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 CID/3-21G*
B
1.75163

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

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Ca1 0.000 0.000 0.000
H2 0.000 0.000 2.185
H3 0.000 0.000 -2.185

Atom - Atom Distances (Å)
  Ca1 H2 H3
Ca12.18512.1851
H22.18514.3702
H32.18514.3702

picture of Calcium Hydride state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 Ca1 H3 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability