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All results from a given calculation for BeCl2 (Beryllium chloride)

using model chemistry: mPW1PW91/STO-3G

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 mPW1PW91/STO-3G
 hartrees
Energy at 0K-925.148583
Energy at 298.15K-925.147989
HF Energy-925.148583
Nuclear repulsion energy83.127040
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/STO-3G
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 446 392 0.00      
2 Σu 1314 1155 236.19      
3 Πu 232 204 48.07      
3 Πu 232 204 48.07      

Unscaled Zero Point Vibrational Energy (zpe) 1111.9 cm-1
Scaled (by 0.8789) Zero Point Vibrational Energy (zpe) 977.2 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 mPW1PW91/STO-3G
B
0.07560

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/STO-3G

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Be1 0.000 0.000 0.000
Cl2 0.000 0.000 1.786
Cl3 0.000 0.000 -1.786

Atom - Atom Distances (Å)
  Be1 Cl2 Cl3
Be11.78561.7856
Cl21.78563.5713
Cl31.78563.5713

picture of Beryllium chloride state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl2 Be1 Cl3 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Be 0.390      
2 Cl -0.195      
3 Cl -0.195      


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 -27.416 0.000 0.000
y 0.000 -27.416 0.000
z 0.000 0.000 -34.015
Traceless
 xyz
x 3.299 0.000 0.000
y 0.000 3.299 0.000
z 0.000 0.000 -6.599
Polar
3z2-r2-13.197
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 0.878 0.000 0.000
y 0.000 0.878 0.000
z 0.000 0.000 4.883


<r2> (average value of r2) Å2
<r2> 126.906
(<r2>)1/2 11.265