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

using model chemistry: B2PLYP/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 B2PLYP/TZVP
 hartrees
Energy at 0K-50.711286
Energy at 298.15K-50.711323
HF Energy-50.665838
Nuclear repulsion energy15.408339
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 B2PLYP/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 2859 2729 0.00      
2 Σg 1272 1214 0.00      
3 Σu 2820 2692 27.38      
4 Πg 567 542 0.00      
4 Πg 567 542 0.00      
5 Πu 614 586 0.34      
5 Πu 614 586 0.34      

Unscaled Zero Point Vibrational Energy (zpe) 4656.9 cm-1
Scaled (by 0.9544) Zero Point Vibrational Energy (zpe) 4444.6 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 B2PLYP/TZVP
B
0.84401

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/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 1.925
H4 0.000 0.000 -1.925

Atom - Atom Distances (Å)
  B1 B2 H3 H4
B11.50721.17132.6785
B21.50722.67851.1713
H31.17132.67853.8499
H42.67851.17133.8499

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 B2PLYP/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B 0.001      
2 B 0.001      
3 H -0.001      
4 H -0.001      


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 -14.124 0.000 0.000
y 0.000 -14.124 0.000
z 0.000 0.000 -12.776
Traceless
 xyz
x -0.674 0.000 0.000
y 0.000 -0.674 0.000
z 0.000 0.000 1.348
Polar
3z2-r22.695
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 3.003 0.000 0.000
y 0.000 3.003 0.000
z 0.000 0.000 7.252


<r2> (average value of r2) Å2
<r2> 21.631
(<r2>)1/2 4.651