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

using model chemistry: B3LYP/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 B3LYP/6-31+G**
 hartrees
Energy at 0K-50.776549
Energy at 298.15K-50.776568
HF Energy-50.776549
Nuclear repulsion energy15.340999
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 B3LYP/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 2842 2740 0.00      
2 Σg 1263 1218 0.00      
3 Σu 2804 2704 35.36      
4 Πg 566 546 0.00      
4 Πg 566 546 0.00      
5 Πu 607 585 0.72      
5 Πu 607 585 0.72      

Unscaled Zero Point Vibrational Energy (zpe) 4627.3 cm-1
Scaled (by 0.9642) Zero Point Vibrational Energy (zpe) 4461.6 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 B3LYP/6-31+G**
B
0.83638

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31+G**

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.757
B2 0.000 0.000 -0.757
H3 0.000 0.000 1.933
H4 0.000 0.000 -1.933

Atom - Atom Distances (Å)
  B1 B2 H3 H4
B11.51451.17552.6900
B21.51452.69001.1755
H31.17552.69003.8655
H42.69001.17553.8655

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 B3LYP/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.017      
2 B -0.017      
3 H 0.017      
4 H 0.017      


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 -14.116 0.000 0.000
y 0.000 -14.116 0.000
z 0.000 0.000 -12.810
Traceless
 xyz
x -0.653 0.000 0.000
y 0.000 -0.653 0.000
z 0.000 0.000 1.306
Polar
3z2-r22.613
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 3.079 0.000 0.000
y 0.000 3.079 0.000
z 0.000 0.000 7.357


<r2> (average value of r2) Å2
<r2> 21.750
(<r2>)1/2 4.664