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

using model chemistry: wB97X-D/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 wB97X-D/cc-pVDZ
 hartrees
Energy at 0K-52.023663
Energy at 298.15K-52.026138
HF Energy-52.023663
Nuclear repulsion energy22.236927
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/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 2576 2454 0.00      
2 A1 1214 1157 0.00      
3 A1 864 823 0.00      
4 B1 540 514 0.00      
5 B2 2552 2431 94.89      
6 B2 1149 1095 5.75      
7 E 2627 2503 105.39      
7 E 2627 2503 105.39      
8 E 992 945 28.03      
8 E 992 945 28.03      
9 E 423 403 3.46      
9 E 423 403 3.46      

Unscaled Zero Point Vibrational Energy (zpe) 8489.2 cm-1
Scaled (by 0.9526) Zero Point Vibrational Energy (zpe) 8086.8 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/cc-pVDZ
ABC
4.02749 0.65758 0.65758

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/cc-pVDZ

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.825
B2 0.000 0.000 -0.825
H3 0.000 1.020 1.458
H4 0.000 -1.020 1.458
H5 1.020 0.000 -1.458
H6 -1.020 0.000 -1.458

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.64961.20101.20102.50062.5006
B21.64962.50062.50061.20101.2010
H31.20102.50062.04083.25383.2538
H41.20102.50062.04083.25383.2538
H52.50061.20103.25383.25382.0408
H62.50061.20103.25383.25382.0408

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 121.828 B1 B2 H6 121.828
B2 B1 H3 121.828 B2 B1 H4 121.828
H3 B1 H4 116.343 H5 B2 H6 116.343
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B 0.005      
2 B 0.005      
3 H -0.002      
4 H -0.002      
5 H -0.002      
6 H -0.002      


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 -14.625 0.000 0.000
y 0.000 -14.625 0.000
z 0.000 0.000 -16.712
Traceless
 xyz
x 1.043 0.000 0.000
y 0.000 1.043 0.000
z 0.000 0.000 -2.087
Polar
3z2-r2-4.173
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 3.558 0.000 0.000
y 0.000 3.558 0.000
z 0.000 0.000 5.662


<r2> (average value of r2) Å2
<r2> 29.042
(<r2>)1/2 5.389