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

using model chemistry: wB97X-D/CEP-121G*

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/CEP-121G*
 hartrees
Energy at 0K-7.929282
Energy at 298.15K-7.931728
HF Energy-7.929282
Nuclear repulsion energy 
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/CEP-121G*
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 2590 2590 0.00      
2 A1 1208 1208 0.00      
3 A1 853 853 0.00      
4 B1 531 531 0.00      
5 B2 2568 2568 91.45      
6 B2 1141 1141 6.18      
7 E 2645 2645 120.78      
7 E 2645 2645 120.78      
8 E 999 999 24.31      
8 E 999 999 24.31      
9 E 417 417 3.49      
9 E 417 417 3.49      

Unscaled Zero Point Vibrational Energy (zpe) 8506.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8506.5 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/CEP-121G*
ABC
4.01693 0.65315 0.65315

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/CEP-121G*

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.827
B2 0.000 0.000 -0.827
H3 0.000 1.020 1.464
H4 0.000 -1.020 1.464
H5 1.020 0.000 -1.464
H6 -1.020 0.000 -1.464

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.65461.20271.20272.50832.5083
B21.65462.50832.50831.20271.2027
H31.20272.50832.04063.26433.2643
H41.20272.50832.04063.26433.2643
H52.50831.20273.26433.26432.0406
H62.50831.20273.26433.26432.0406

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 121.967 B1 B2 H6 121.967
B2 B1 H3 121.967 B2 B1 H4 121.967
H3 B1 H4 116.066 H5 B2 H6 116.066
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/CEP-121G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.025      
2 B -0.025      
3 H 0.013      
4 H 0.013      
5 H 0.013      
6 H 0.013      


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 -14.347 0.000 0.000
y 0.000 -14.347 0.000
z 0.000 0.000 -16.347
Traceless
 xyz
x 1.000 0.000 0.000
y 0.000 1.000 0.000
z 0.000 0.000 -2.000
Polar
3z2-r2-3.999
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 3.373 0.000 0.000
y 0.000 3.373 0.000
z 0.000 0.000 5.419


<r2> (average value of r2) Å2
<r2> 26.222
(<r2>)1/2 5.121