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All results from a given calculation for HBBH (Diborane(2))

using model chemistry: TPSSh/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D*H 3ΣG
Energy calculated at TPSSh/6-31G**
 hartrees
Energy at 0K-50.781068
Energy at 298.15K-50.781081
HF Energy-50.781068
Nuclear repulsion energy15.301510
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 TPSSh/6-31G**
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 2840 2723 0.00      
2 Σg 1260 1208 0.00      
3 Σu 2801 2685 43.73      
4 Πg 552 529 0.00      
4 Πg 552 529 0.00      
5 Πu 621 595 3.38      
5 Πu 621 595 3.38      

Unscaled Zero Point Vibrational Energy (zpe) 4623.2 cm-1
Scaled (by 0.9587) Zero Point Vibrational Energy (zpe) 4432.2 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 TPSSh/6-31G**
B
0.83191

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/6-31G**

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.759
B2 0.000 0.000 -0.759
H3 0.000 0.000 1.937
H4 0.000 0.000 -1.937

Atom - Atom Distances (Å)
  B1 B2 H3 H4
B11.51881.17792.6968
B21.51882.69681.1779
H31.17792.69683.8747
H42.69681.17793.8747

picture of Diborane(2) state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 B2 H4 180.000 B2 B1 H3 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.026      
2 B -0.026      
3 H 0.026      
4 H 0.026      


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


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.203 0.000 0.000
y 0.000 2.203 0.000
z 0.000 0.000 6.555


<r2> (average value of r2) Å2
<r2> 21.368
(<r2>)1/2 4.623