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

using model chemistry: PBEPBE/Def2TZVPP

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 PBEPBE/Def2TZVPP
 hartrees
Energy at 0K-678.488394
Energy at 298.15K 
HF Energy-678.488394
Nuclear repulsion energy10.430864
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 PBEPBE/Def2TZVPP
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 1299 1283 0.00      
2 Σu 1194 1180 914.59      
3 Πu 246i 243i 897.24      
3 Πu 246i 243i 897.24      

Unscaled Zero Point Vibrational Energy (zpe) 1000.9 cm-1
Scaled (by 0.9879) Zero Point Vibrational Energy (zpe) 988.8 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 PBEPBE/Def2TZVPP
B
1.98111

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/Def2TZVPP

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 1.812
H3 0.000 0.000 -1.812

Atom - Atom Distances (Å)
  Ca1 H2 H3
Ca11.81231.8123
H21.81233.6245
H31.81233.6245

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 PBEPBE/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Ca 0.560      
2 H -0.280      
3 H -0.280      


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 -16.609 0.000 0.000
y 0.000 -16.609 0.000
z 0.000 0.000 -41.988
Traceless
 xyz
x 12.689 0.000 0.000
y 0.000 12.689 0.000
z 0.000 0.000 -25.379
Polar
3z2-r2-50.757
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 6.831 0.000 0.000
y 0.000 6.831 0.000
z 0.000 0.000 7.782


<r2> (average value of r2) Å2
<r2> 24.101
(<r2>)1/2 4.909

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at PBEPBE/Def2TZVPP
 hartrees
Energy at 0K-678.490986
Energy at 298.15K-678.492142
HF Energy-678.490986
Nuclear repulsion energy10.633648
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 PBEPBE/Def2TZVPP
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 1310 1295 45.07      
2 A1 317 313 416.82      
3 B2 1242 1227 767.35      

Unscaled Zero Point Vibrational Energy (zpe) 1434.2 cm-1
Scaled (by 0.9879) Zero Point Vibrational Energy (zpe) 1416.9 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 PBEPBE/Def2TZVPP
ABC
13.66546 2.43958 2.07003

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/Def2TZVPP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Ca1 0.000 0.000 0.069
H2 0.000 1.866 -0.692
H3 0.000 -1.866 -0.692

Atom - Atom Distances (Å)
  Ca1 H2 H3
Ca12.01512.0151
H22.01513.7313
H32.01513.7313

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 135.598
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Ca 0.650      
2 H -0.325      
3 H -0.325      


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 4.707 4.707
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.318 0.000 0.000
y 0.000 -36.789 0.000
z 0.000 0.000 -18.947
Traceless
 xyz
x 11.550 0.000 0.000
y 0.000 -19.157 0.000
z 0.000 0.000 7.607
Polar
3z2-r215.214
x2-y220.471
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.499 0.000 0.000
y 0.000 8.822 0.000
z 0.000 0.000 7.053


<r2> (average value of r2) Å2
<r2> 23.027
(<r2>)1/2 4.799