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

using model chemistry: B97D3/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-50.753037
Energy at 298.15K-50.753041
HF Energy-50.753037
Nuclear repulsion energy15.306262
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/Def2TZVPP
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 2768 2731 0.00      
2 Σg 1231 1215 0.00      
3 Σu 2729 2691 35.51      
4 Πg 566 558 0.00      
4 Πg 566 558 0.00      
5 Πu 594 586 0.17      
5 Πu 594 586 0.17      

Unscaled Zero Point Vibrational Energy (zpe) 4523.3 cm-1
Scaled (by 0.9863) Zero Point Vibrational Energy (zpe) 4461.4 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/Def2TZVPP
B
0.83311

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/Def2TZVPP

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.758
B2 0.000 0.000 -0.758
H3 0.000 0.000 1.938
H4 0.000 0.000 -1.938

Atom - Atom Distances (Å)
  B1 B2 H3 H4
B11.51661.18002.6967
B21.51662.69671.1800
H31.18002.69673.8767
H42.69671.18003.8767

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/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.069      
2 B -0.069      
3 H 0.069      
4 H 0.069      


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 -13.901 0.000 0.000
y 0.000 -13.901 0.000
z 0.000 0.000 -12.488
Traceless
 xyz
x -0.707 0.000 0.000
y 0.000 -0.707 0.000
z 0.000 0.000 1.413
Polar
3z2-r22.827
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 3.700 0.000 0.000
y 0.000 3.700 0.000
z 0.000 0.000 7.104


<r2> (average value of r2) Å2
<r2> 21.653
(<r2>)1/2 4.653