return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for B2Cl4 (Diboron tetrachloride)

using model chemistry: HF/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2 1A1
Energy calculated at HF/3-21G*
 hartrees
Energy at 0K-1878.842545
Energy at 298.15K-1878.842175
HF Energy-1878.842545
Nuclear repulsion energy422.360206
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 HF/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 A1 1185 1069 0.00      
2 A1 419 378 0.00      
3 A1 185 167 0.00      
4 B1 26 23 0.00      
5 B2 754 680 184.63      
6 B2 312 282 5.84      
7 E 945 853 323.73      
7 E 945 853 323.73      
8 E 532 480 16.01      
8 E 532 480 16.01      
9 E 108 97 3.23      
9 E 108 97 3.23      

Unscaled Zero Point Vibrational Energy (zpe) 3024.3 cm-1
Scaled (by 0.9026) Zero Point Vibrational Energy (zpe) 2729.8 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 HF/3-21G*
ABC
0.05216 0.02856 0.02856

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/3-21G*

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.844
B2 0.000 0.000 -0.844
Cl3 0.000 1.520 1.718
Cl4 0.000 -1.520 1.718
Cl5 1.520 0.000 -1.718
Cl6 -1.520 0.000 -1.718

Atom - Atom Distances (Å)
  B1 B2 Cl3 Cl4 Cl5 Cl6
B11.68871.75341.75342.97952.9795
B21.68872.97952.97951.75341.7534
Cl31.75342.97953.04024.05344.0534
Cl41.75342.97953.04024.05344.0534
Cl52.97951.75344.05344.05343.0402
Cl62.97951.75344.05344.05343.0402

picture of Diboron tetrachloride state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 B2 Cl5 119.893 B1 B2 Cl6 119.893
B2 B1 Cl3 119.893 B2 B1 Cl4 119.893
Cl3 B1 Cl4 120.213 Cl5 B2 Cl6 120.213
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B 0.464      
2 B 0.464      
3 Cl -0.232      
4 Cl -0.232      
5 Cl -0.232      
6 Cl -0.232      


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 0.000 0.000 0.000 0.000
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -63.867 0.000 0.000
y 0.000 -63.867 0.000
z 0.000 0.000 -67.508
Traceless
 xyz
x 1.821 0.000 0.000
y 0.000 1.821 0.000
z 0.000 0.000 -3.641
Polar
3z2-r2-7.282
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 8.179 0.000 0.000
y 0.000 8.179 0.000
z 0.000 0.000 8.124


<r2> (average value of r2) Å2
<r2> 405.650
(<r2>)1/2 20.141