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

using model chemistry: B1B95/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 B1B95/cc-pVDZ
 hartrees
Energy at 0K-50.729238
Energy at 298.15K-50.729292
HF Energy-50.729238
Nuclear repulsion energy15.266582
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 B1B95/cc-pVDZ
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 2824 2714 0.00      
2 Σg 1275 1225 0.00      
3 Σu 2779 2671 28.73      
4 Πg 587 564 0.00      
4 Πg 587 564 0.00      
5 Πu 609 585 1.01      
5 Πu 609 585 1.01      

Unscaled Zero Point Vibrational Energy (zpe) 4634.3 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 4454.5 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 B1B95/cc-pVDZ
B
0.82927

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/cc-pVDZ

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.760
B2 0.000 0.000 -0.760
H3 0.000 0.000 1.945
H4 0.000 0.000 -1.945

Atom - Atom Distances (Å)
  B1 B2 H3 H4
B11.51931.18482.7042
B21.51932.70421.1848
H31.18482.70423.8890
H42.70421.18483.8890

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 B1B95/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.027      
2 B -0.027      
3 H 0.027      
4 H 0.027      


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 -13.984 0.000 0.000
y 0.000 -13.984 0.000
z 0.000 0.000 -12.184
Traceless
 xyz
x -0.900 0.000 0.000
y 0.000 -0.900 0.000
z 0.000 0.000 1.800
Polar
3z2-r23.599
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 2.677 0.000 0.000
y 0.000 2.677 0.000
z 0.000 0.000 6.996


<r2> (average value of r2) Å2
<r2> 21.693
(<r2>)1/2 4.658