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

using model chemistry: B97D3/6-31G*

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 B97D3/6-31G*
 hartrees
Energy at 0K-50.734019
Energy at 298.15K-50.734023
HF Energy-50.734019
Nuclear repulsion energy15.243575
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 B97D3/6-31G*
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 2793 2738 0.00      
2 Σg 1239 1215 0.00      
3 Σu 2755 2701 45.03      
4 Πg 568 557 0.00      
4 Πg 568 557 0.00      
5 Πu 603 591 2.23      
5 Πu 603 591 2.23      

Unscaled Zero Point Vibrational Energy (zpe) 4564.4 cm-1
Scaled (by 0.9804) Zero Point Vibrational Energy (zpe) 4474.9 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 B97D3/6-31G*
B
0.82655

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-31G*

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 1.947
H4 0.000 0.000 -1.947

Atom - Atom Distances (Å)
  B1 B2 H3 H4
B11.52221.18582.7080
B21.52222.70801.1858
H31.18582.70803.8938
H42.70801.18583.8938

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 B97D3/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.060      
2 B -0.060      
3 H 0.060      
4 H 0.060      


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 -13.315 0.000 0.000
y 0.000 -13.315 0.000
z 0.000 0.000 -12.233
Traceless
 xyz
x -0.541 0.000 0.000
y 0.000 -0.541 0.000
z 0.000 0.000 1.082
Polar
3z2-r22.164
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 2.192 0.000 0.000
y 0.000 2.192 0.000
z 0.000 0.000 6.476


<r2> (average value of r2) Å2
<r2> 21.465
(<r2>)1/2 4.633