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: wB97X-D/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 wB97X-D/6-31+G**
 hartrees
Energy at 0K-50.748231
Energy at 298.15K-50.748253
HF Energy-50.748231
Nuclear repulsion energy15.323991
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/6-31+G**
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 2824 2689 0.00      
2 Σg 1277 1216 0.00      
3 Σu 2784 2651 43.44      
4 Πg 566 539 0.00      
4 Πg 566 539 0.00      
5 Πu 609 580 0.81      
5 Πu 609 580 0.81      

Unscaled Zero Point Vibrational Energy (zpe) 4617.0 cm-1
Scaled (by 0.9523) Zero Point Vibrational Energy (zpe) 4396.8 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/6-31+G**
B
0.83522

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-31+G**

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.757
B2 0.000 0.000 -0.757
H3 0.000 0.000 1.937
H4 0.000 0.000 -1.937

Atom - Atom Distances (Å)
  B1 B2 H3 H4
B11.51441.17932.6937
B21.51442.69371.1793
H31.17932.69373.8730
H42.69371.17933.8730

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/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.034      
2 B -0.034      
3 H 0.034      
4 H 0.034      


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 -14.026 0.000 0.000
y 0.000 -14.026 0.000
z 0.000 0.000 -12.601
Traceless
 xyz
x -0.713 0.000 0.000
y 0.000 -0.713 0.000
z 0.000 0.000 1.426
Polar
3z2-r22.852
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 7.380


<r2> (average value of r2) Å2
<r2> 21.698
(<r2>)1/2 4.658