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

using model chemistry: PBEPBEultrafine/TZVP

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 PBEPBEultrafine/TZVP
 hartrees
Energy at 0K-50.684987
Energy at 298.15K-50.684961
HF Energy-50.684987
Nuclear repulsion energy15.260464
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 PBEPBEultrafine/TZVP
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 2766 2735 0.00      
2 Σg 1228 1214 0.00      
3 Σu 2727 2696 25.59      
4 Πg 552 546 0.00      
4 Πg 552 546 0.00      
5 Πu 582 575 0.25      
5 Πu 582 575 0.25      

Unscaled Zero Point Vibrational Energy (zpe) 4494.2 cm-1
Scaled (by 0.9886) Zero Point Vibrational Energy (zpe) 4443.0 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 PBEPBEultrafine/TZVP
B
0.82819

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/TZVP

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 1.944
H4 0.000 0.000 -1.944

Atom - Atom Distances (Å)
  B1 B2 H3 H4
B11.52101.18382.7048
B21.52102.70481.1838
H31.18382.70483.8886
H42.70481.18383.8886

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 PBEPBEultrafine/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.038      
2 B -0.038      
3 H 0.038      
4 H 0.038      


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 -14.112 0.000 0.000
y 0.000 -14.112 0.000
z 0.000 0.000 -12.601
Traceless
 xyz
x -0.756 0.000 0.000
y 0.000 -0.756 0.000
z 0.000 0.000 1.511
Polar
3z2-r23.023
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 3.095 0.000 0.000
y 0.000 3.095 0.000
z 0.000 0.000 7.327


<r2> (average value of r2) Å2
<r2> 21.844
(<r2>)1/2 4.674