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

using model chemistry: B3LYP/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 B3LYP/3-21G*
 hartrees
Energy at 0K-675.381344
Energy at 298.15K-675.382454
HF Energy-675.381344
Nuclear repulsion energy9.993454
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 B3LYP/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 1272 1224 0.00      
2 Σu 1262 1214 269.67      
3 Πu 285 274 726.89      
3 Πu 285 274 726.89      

Unscaled Zero Point Vibrational Energy (zpe) 1552.2 cm-1
Scaled (by 0.962) Zero Point Vibrational Energy (zpe) 1493.2 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 B3LYP/3-21G*
B
1.81845

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/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 2.145
H3 0.000 0.000 -2.145

Atom - Atom Distances (Å)
  Ca1 H2 H3
Ca12.14462.1446
H22.14464.2891
H32.14464.2891

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 B3LYP/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Ca 0.275      
2 H -0.137      
3 H -0.137      


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 -17.923 0.000 0.000
y 0.000 -17.923 0.000
z 0.000 0.000 -42.983
Traceless
 xyz
x 12.530 0.000 0.000
y 0.000 12.530 0.000
z 0.000 0.000 -25.060
Polar
3z2-r2-50.121
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 6.821 0.000 0.000
y 0.000 6.821 0.000
z 0.000 0.000 6.639


<r2> (average value of r2) Å2
<r2> 25.610
(<r2>)1/2 5.061