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

using model chemistry: B97D3/aug-cc-pVDZ

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 B97D3/aug-cc-pVDZ
 hartrees
Energy at 0K-50.739368
Energy at 298.15K-50.739370
HF Energy-50.739368
Nuclear repulsion energy15.190097
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 B97D3/aug-cc-pVDZ
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 2771 2771 0.00      
2 Σg 1231 1231 0.00      
3 Σu 2728 2728 40.79      
4 Πg 556 556 0.00      
4 Πg 556 556 0.00      
5 Πu 596 596 0.04      
5 Πu 596 596 0.04      

Unscaled Zero Point Vibrational Energy (zpe) 4517.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4517.2 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 B97D3/aug-cc-pVDZ
B
0.82052

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/aug-cc-pVDZ

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.764
B2 0.000 0.000 -0.764
H3 0.000 0.000 1.953
H4 0.000 0.000 -1.953

Atom - Atom Distances (Å)
  B1 B2 H3 H4
B11.52821.18912.7173
B21.52822.71731.1891
H31.18912.71733.9064
H42.71731.18913.9064

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 B97D3/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.663      
2 B -0.663      
3 H 0.663      
4 H 0.663      


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 -14.052 0.000 0.000
y 0.000 -14.052 0.000
z 0.000 0.000 -12.620
Traceless
 xyz
x -0.716 0.000 0.000
y 0.000 -0.716 0.000
z 0.000 0.000 1.431
Polar
3z2-r22.863
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 4.316 0.000 0.000
y 0.000 4.316 0.000
z 0.000 0.000 7.370


<r2> (average value of r2) Å2
<r2> 21.947
(<r2>)1/2 4.685