return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: B97D3/6-31+G**

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 B97D3/6-31+G**
 hartrees
Energy at 0K-50.738997
Energy at 298.15K-50.738971
HF Energy-50.738997
Nuclear repulsion energy15.231596
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 B97D3/6-31+G**
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 2781 2733 0.00      
2 Σg 1229 1208 0.00      
3 Σu 2743 2695 48.68      
4 Πg 551 542 0.00      
4 Πg 551 542 0.00      
5 Πu 588 578 0.72      
5 Πu 588 578 0.72      

Unscaled Zero Point Vibrational Energy (zpe) 4515.7 cm-1
Scaled (by 0.9828) Zero Point Vibrational Energy (zpe) 4438.0 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 B97D3/6-31+G**
B
0.82451

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-31+G**

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.763
B2 0.000 0.000 -0.763
H3 0.000 0.000 1.947
H4 0.000 0.000 -1.947

Atom - Atom Distances (Å)
  B1 B2 H3 H4
B11.52531.18402.7093
B21.52532.70931.1840
H31.18402.70933.8934
H42.70931.18403.8934

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 B97D3/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.022      
2 B -0.022      
3 H 0.022      
4 H 0.022      


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 -13.972 0.000 0.000
y 0.000 -13.972 0.000
z 0.000 0.000 -12.724
Traceless
 xyz
x -0.624 0.000 0.000
y 0.000 -0.624 0.000
z 0.000 0.000 1.248
Polar
3z2-r22.495
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 2.990 0.000 0.000
y 0.000 2.990 0.000
z 0.000 0.000 7.348


<r2> (average value of r2) Å2
<r2> 21.863
(<r2>)1/2 4.676