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

using model chemistry: HSEh1PBE/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 HSEh1PBE/cc-pVTZ
 hartrees
Energy at 0K-50.707312
Energy at 298.15K-50.707358
HF Energy-50.707312
Nuclear repulsion energy15.376338
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 HSEh1PBE/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 2819 2710 0.00      
2 Σg 1264 1215 0.00      
3 Σu 2779 2671 26.28      
4 Πg 579 556 0.00      
4 Πg 579 556 0.00      
5 Πu 608 584 0.22      
5 Πu 608 584 0.22      

Unscaled Zero Point Vibrational Energy (zpe) 4618.2 cm-1
Scaled (by 0.9611) Zero Point Vibrational Energy (zpe) 4438.5 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 HSEh1PBE/cc-pVTZ
B
0.84118

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/cc-pVTZ

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.754
B2 0.000 0.000 -0.754
H3 0.000 0.000 1.930
H4 0.000 0.000 -1.930

Atom - Atom Distances (Å)
  B1 B2 H3 H4
B11.50861.17622.6848
B21.50862.68481.1762
H31.17622.68483.8610
H42.68481.17623.8610

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 HSEh1PBE/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.031      
2 B -0.031      
3 H 0.031      
4 H 0.031      


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 -14.057 0.000 0.000
y 0.000 -14.057 0.000
z 0.000 0.000 -12.313
Traceless
 xyz
x -0.872 0.000 0.000
y 0.000 -0.872 0.000
z 0.000 0.000 1.743
Polar
3z2-r23.487
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 3.437 0.000 0.000
y 0.000 3.437 0.000
z 0.000 0.000 7.146


<r2> (average value of r2) Å2
<r2> 21.560
(<r2>)1/2 4.643