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

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

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/6-31+G**
 hartrees
Energy at 0K-50.784257
Energy at 298.15K-50.784236
HF Energy-50.784257
Nuclear repulsion energy15.283927
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/6-31+G**
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 2839 2733 0.00      
2 Σg 1251 1204 0.00      
3 Σu 2801 2696 45.73      
4 Πg 536 516 0.00      
4 Πg 536 516 0.00      
5 Πu 608 585 0.69      
5 Πu 608 585 0.69      

Unscaled Zero Point Vibrational Energy (zpe) 4590.0 cm-1
Scaled (by 0.9625) Zero Point Vibrational Energy (zpe) 4417.9 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 TPSSh/6-31+G**
B
0.82952

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

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.761
B2 0.000 0.000 -0.761
H3 0.000 0.000 1.938
H4 0.000 0.000 -1.938

Atom - Atom Distances (Å)
  B1 B2 H3 H4
B11.52181.17762.6994
B21.52182.69941.1776
H31.17762.69943.8770
H42.69941.17763.8770

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/6-31+G** 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 2.994 0.000 0.000
y 0.000 2.994 0.000
z 0.000 0.000 7.366


<r2> (average value of r2) Å2
<r2> 21.763
(<r2>)1/2 4.665