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

using model chemistry: BLYP/daug-cc-pVTZ

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/daug-cc-pVTZ
 hartrees
Energy at 0K-50.751921
Energy at 298.15K-50.751899
HF Energy-50.751921
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 BLYP/daug-cc-pVTZ
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 2781 2781 0.00      
2 Σg 1228 1228 0.00      
3 Σu 2743 2743 28.69      
4 Πg 554 554 0.00      
4 Πg 554 554 0.00      
5 Πu 588 588 0.15      
5 Πu 588 588 0.15      

Unscaled Zero Point Vibrational Energy (zpe) 4518.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4518.4 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/daug-cc-pVTZ
B
0.83638

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/daug-cc-pVTZ

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 BLYP/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B 0.105      
2 B 0.105      
3 H -0.105      
4 H -0.105      


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 -14.171 0.000 0.000
y 0.000 -14.171 0.000
z 0.000 0.000 -12.860
Traceless
 xyz
x -0.656 0.000 0.000
y 0.000 -0.656 0.000
z 0.000 0.000 1.311
Polar
3z2-r22.623
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 4.547 0.000 0.000
y 0.000 4.547 0.000
z 0.000 0.000 7.360


<r2> (average value of r2) Å2
<r2> 21.783
(<r2>)1/2 4.667