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

using model chemistry: BLYP/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 BLYP/6-31G**
 hartrees
Energy at 0K-50.732561
Energy at 298.15K-50.732553
HF Energy-50.732561
Nuclear repulsion energy15.270311
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 BLYP/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 2788 2767 0.00      
2 Σg 1236 1226 0.00      
3 Σu 2750 2729 30.88      
4 Πg 552 548 0.00      
4 Πg 552 548 0.00      
5 Πu 604 600 3.29      
5 Πu 604 600 3.29      

Unscaled Zero Point Vibrational Energy (zpe) 4543.2 cm-1
Scaled (by 0.9923) Zero Point Vibrational Energy (zpe) 4508.2 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 BLYP/6-31G**
B
0.82874

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

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 1.942
H4 0.000 0.000 -1.942

Atom - Atom Distances (Å)
  B1 B2 H3 H4
B11.52141.18112.7025
B21.52142.70251.1811
H31.18112.70253.8836
H42.70251.18113.8836

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 BLYP/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.013      
2 B -0.013      
3 H 0.013      
4 H 0.013      


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 -13.253 0.000 0.000
y 0.000 -13.253 0.000
z 0.000 0.000 -12.310
Traceless
 xyz
x -0.472 0.000 0.000
y 0.000 -0.472 0.000
z 0.000 0.000 0.943
Polar
3z2-r21.887
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 2.210 0.000 0.000
y 0.000 2.210 0.000
z 0.000 0.000 6.371


<r2> (average value of r2) Å2
<r2> 21.409
(<r2>)1/2 4.627