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

using model chemistry: wB97X-D/cc-pVQZ

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 wB97X-D/cc-pVQZ
 hartrees
Energy at 0K-50.764536
Energy at 298.15K-50.764588
HF Energy-50.764536
Nuclear repulsion energy15.405752
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 wB97X-D/cc-pVQZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 Σg 2816 2816 0.00      
2 Σg 1274 1274 0.00      
3 Σu 2776 2776 31.07      
4 Πg 584 584 0.00      
4 Πg 584 584 0.00      
5 Πu 609 609 0.25      
5 Πu 609 609 0.25      

Unscaled Zero Point Vibrational Energy (zpe) 4626.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4626.6 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 wB97X-D/cc-pVQZ
B
0.84468

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/cc-pVQZ

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.753
B2 0.000 0.000 -0.753
H3 0.000 0.000 1.927
H4 0.000 0.000 -1.927

Atom - Atom Distances (Å)
  B1 B2 H3 H4
B11.50511.17492.6800
B21.50512.68001.1749
H31.17492.68003.8549
H42.68001.17493.8549

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 wB97X-D/cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B 0.147      
2 B 0.147      
3 H -0.147      
4 H -0.147      


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 -13.986 0.000 0.000
y 0.000 -13.986 0.000
z 0.000 0.000 -12.299
Traceless
 xyz
x -0.843 0.000 0.000
y 0.000 -0.843 0.000
z 0.000 0.000 1.687
Polar
3z2-r23.374
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 3.899 0.000 0.000
y 0.000 3.899 0.000
z 0.000 0.000 7.150


<r2> (average value of r2) Å2
<r2> 21.477
(<r2>)1/2 4.634