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

using model chemistry: B3PW91/6-311G**

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 B3PW91/6-311G**
 hartrees
Energy at 0K-678.682288
Energy at 298.15K 
HF Energy-678.682288
Nuclear repulsion energy10.480454
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 B3PW91/6-311G**
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 1337 1288 0.00      
2 Σu 1247 1201 972.85      
3 Πu 118i 113i 831.20      
3 Πu 118i 113i 831.20      

Unscaled Zero Point Vibrational Energy (zpe) 1174.5 cm-1
Scaled (by 0.9631) Zero Point Vibrational Energy (zpe) 1131.1 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 B3PW91/6-311G**
B
2.00000

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-311G**

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 2.045
H3 0.000 0.000 -2.045

Atom - Atom Distances (Å)
  Ca1 H2 H3
Ca12.04492.0449
H22.04494.0898
H32.04494.0898

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 B3PW91/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Ca 0.824      
2 H -0.412      
3 H -0.412      


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 -16.260 0.000 0.000
y 0.000 -16.260 0.000
z 0.000 0.000 -42.499
Traceless
 xyz
x 13.119 0.000 0.000
y 0.000 13.119 0.000
z 0.000 0.000 -26.239
Polar
3z2-r2-52.478
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 3.943 0.000 0.000
y 0.000 3.943 0.000
z 0.000 0.000 7.302


<r2> (average value of r2) Å2
<r2> 23.982
(<r2>)1/2 4.897

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at B3PW91/6-311G**
 hartrees
Energy at 0K-678.682616
Energy at 298.15K-678.683594
HF Energy-678.682616
Nuclear repulsion energy10.569419
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 B3PW91/6-311G**
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 1337 1288 27.89      
2 A1 181 174 739.86      
3 B2 1262 1215 960.97      

Unscaled Zero Point Vibrational Energy (zpe) 1389.5 cm-1
Scaled (by 0.9631) Zero Point Vibrational Energy (zpe) 1338.3 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 B3PW91/6-311G**
ABC
27.73645 2.20147 2.03958

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-311G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Ca1 0.000 0.000 0.051
H2 0.000 1.949 -0.512
H3 0.000 -1.949 -0.512

Atom - Atom Distances (Å)
  Ca1 H2 H3
Ca12.02872.0287
H22.02873.8982
H32.02873.8982

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 147.788
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Ca 0.892      
2 H -0.446      
3 H -0.446      


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 3.486 3.486
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.025 0.000 0.000
y 0.000 -40.121 0.000
z 0.000 0.000 -17.422
Traceless
 xyz
x 12.747 0.000 0.000
y 0.000 -23.397 0.000
z 0.000 0.000 10.651
Polar
3z2-r221.302
x2-y224.096
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.137 0.000 0.000
y 0.000 7.291 0.000
z 0.000 0.000 5.204


<r2> (average value of r2) Å2
<r2> 23.490
(<r2>)1/2 4.847