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

using model chemistry: HSEh1PBE/6-311G*

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 HSEh1PBE/6-311G*
 hartrees
Energy at 0K-50.700047
Energy at 298.15K-50.700083
HF Energy-50.700047
Nuclear repulsion energy15.358149
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 HSEh1PBE/6-311G*
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 2813 2699 0.00      
2 Σg 1265 1214 0.00      
3 Σu 2770 2658 30.25      
4 Πg 580 556 0.00      
4 Πg 580 556 0.00      
5 Πu 607 583 0.95      
5 Πu 607 583 0.95      

Unscaled Zero Point Vibrational Energy (zpe) 4610.9 cm-1
Scaled (by 0.9596) Zero Point Vibrational Energy (zpe) 4424.7 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 HSEh1PBE/6-311G*
B
0.83952

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-311G*

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.755
B2 0.000 0.000 -0.755
H3 0.000 0.000 1.934
H4 0.000 0.000 -1.934

Atom - Atom Distances (Å)
  B1 B2 H3 H4
B11.50961.17882.6883
B21.50962.68831.1788
H31.17882.68833.8671
H42.68831.17883.8671

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 HSEh1PBE/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.056      
2 B -0.056      
3 H 0.056      
4 H 0.056      


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 -14.068 0.000 0.000
y 0.000 -14.068 0.000
z 0.000 0.000 -12.373
Traceless
 xyz
x -0.847 0.000 0.000
y 0.000 -0.847 0.000
z 0.000 0.000 1.694
Polar
3z2-r23.389
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 2.685 0.000 0.000
y 0.000 2.685 0.000
z 0.000 0.000 7.037


<r2> (average value of r2) Å2
<r2> 21.608
(<r2>)1/2 4.648