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

using model chemistry: mPW1PW91/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 no D*H 1Σg
1 2 yes C2V 1A1

Conformer 1 (D*H)

Jump to S1C2
Energy calculated at mPW1PW91/6-311G**
 hartrees
Energy at 0K-678.756961
Energy at 298.15K 
HF Energy-678.756961
Nuclear repulsion energy10.485059
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 mPW1PW91/6-311G**
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 1343 1285 0.00      
2 Σu 1254 1200 961.90      
3 Πu 93i 89i 831.71      
3 Πu 93i 89i 831.71      

Unscaled Zero Point Vibrational Energy (zpe) 1205.8 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 1153.6 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 mPW1PW91/6-311G**
B
2.00175

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-311G**

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 2.044
H3 0.000 0.000 -2.044

Atom - Atom Distances (Å)
  Ca1 H2 H3
Ca12.04402.0440
H22.04404.0880
H32.04404.0880

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
Charges from optimized geometry at mPW1PW91/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Ca 0.822      
2 H -0.411      
3 H -0.411      


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


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.286 0.000 0.000
y 0.000 -16.286 0.000
z 0.000 0.000 -42.537
Traceless
 xyz
x 13.125 0.000 0.000
y 0.000 13.125 0.000
z 0.000 0.000 -26.250
Polar
3z2-r2-52.501
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.871 0.000 0.000
y 0.000 3.871 0.000
z 0.000 0.000 7.223


<r2> (average value of r2) Å2
<r2> 23.993
(<r2>)1/2 4.898

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at mPW1PW91/6-311G**
 hartrees
Energy at 0K-678.757124
Energy at 298.15K-678.758047
HF Energy-678.757124
Nuclear repulsion energy10.551673
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 mPW1PW91/6-311G**
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 1343 1285 21.51      
2 A1 146 140 784.94      
3 B2 1266 1211 959.90      

Unscaled Zero Point Vibrational Energy (zpe) 1377.4 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 1317.8 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 mPW1PW91/6-311G**
ABC
36.31593 2.15182 2.03145

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-311G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Ca1 0.000 0.000 0.045
H2 0.000 1.971 -0.447
H3 0.000 -1.971 -0.447

Atom - Atom Distances (Å)
  Ca1 H2 H3
Ca12.03192.0319
H22.03193.9429
H32.03193.9429

picture of Calcium Hydride state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 Ca1 H3 151.983
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Ca 0.879      
2 H -0.439      
3 H -0.439      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 3.054 3.054
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.099 0.000 0.000
y 0.000 -40.771 0.000
z 0.000 0.000 -17.155
Traceless
 xyz
x 12.864 0.000 0.000
y 0.000 -24.144 0.000
z 0.000 0.000 11.280
Polar
3z2-r222.560
x2-y224.672
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.009 0.000 0.000
y 0.000 7.185 0.000
z 0.000 0.000 4.863


<r2> (average value of r2) Å2
<r2> 23.625
(<r2>)1/2 4.861