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

using model chemistry: wB97X-D/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 wB97X-D/TZVP
 hartrees
Energy at 0K-50.759975
Energy at 298.15K-50.760026
HF Energy-50.759975
Nuclear repulsion energy15.378043
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/TZVP
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 2815 2689 0.00      
2 Σg 1279 1221 0.00      
3 Σu 2774 2650 32.04      
4 Πg 584 557 0.00      
4 Πg 584 557 0.00      
5 Πu 608 581 0.59      
5 Πu 608 581 0.59      

Unscaled Zero Point Vibrational Energy (zpe) 4625.7 cm-1
Scaled (by 0.955) Zero Point Vibrational Energy (zpe) 4417.5 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 wB97X-D/TZVP
B
0.84175

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

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 1.931
H4 0.000 0.000 -1.931

Atom - Atom Distances (Å)
  B1 B2 H3 H4
B11.50751.17742.6849
B21.50752.68491.1774
H31.17742.68493.8624
H42.68491.17743.8624

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/TZVP 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 -13.975 0.000 0.000
y 0.000 -13.975 0.000
z 0.000 0.000 -12.531
Traceless
 xyz
x -0.722 0.000 0.000
y 0.000 -0.722 0.000
z 0.000 0.000 1.444
Polar
3z2-r22.889
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 2.944 0.000 0.000
y 0.000 2.944 0.000
z 0.000 0.000 7.285


<r2> (average value of r2) Å2
<r2> 21.568
(<r2>)1/2 4.644