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All results from a given calculation for B2H4 (Diborane(4) D2d)

using model chemistry: TPSSh/daug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2D 1A1
Energy calculated at TPSSh/daug-cc-pVDZ
 hartrees
Energy at 0K-52.052243
Energy at 298.15K-52.054674
HF Energy-52.052243
Nuclear repulsion energy22.210879
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 TPSSh/daug-cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 2568 2568 0.00      
2 A1 1200 1200 0.00      
3 A1 868 868 0.00      
4 B1 555 555 0.00      
5 B2 2546 2546 71.55      
6 B2 1137 1137 3.60      
7 E 2612 2612 90.64      
7 E 2612 2612 90.64      
8 E 993 993 22.96      
8 E 993 993 22.96      
9 E 391 391 4.37      
9 E 391 391 4.37      

Unscaled Zero Point Vibrational Energy (zpe) 8433.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8433.4 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 TPSSh/daug-cc-pVDZ
ABC
4.00983 0.65797 0.65797

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/daug-cc-pVDZ

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.822
B2 0.000 0.000 -0.822
H3 0.000 1.021 1.465
H4 0.000 -1.021 1.465
H5 1.021 0.000 -1.465
H6 -1.021 0.000 -1.465

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.64331.20701.20702.50442.5044
B21.64332.50442.50441.20701.2070
H31.20702.50442.04243.26683.2668
H41.20702.50442.04243.26683.2668
H52.50441.20703.26683.26682.0424
H62.50441.20703.26683.26682.0424

picture of Diborane(4) D2d state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 B2 H5 122.214 B1 B2 H6 122.214
B2 B1 H3 122.214 B2 B1 H4 122.214
H3 B1 H4 115.572 H5 B2 H6 115.572
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -1.029      
2 B -1.029      
3 H 0.514      
4 H 0.514      
5 H 0.514      
6 H 0.514      


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


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.234 0.000 0.000
y 0.000 4.234 0.000
z 0.000 0.000 6.181


<r2> (average value of r2) Å2
<r2> 29.085
(<r2>)1/2 5.393