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

using model chemistry: PBE1PBE/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 PBE1PBE/daug-cc-pVDZ
 hartrees
Energy at 0K-51.948787
Energy at 298.15K-51.951170
HF Energy-51.948787
Nuclear repulsion energy22.245627
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 PBE1PBE/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 2566 2566 0.00      
2 A1 1177 1177 0.00      
3 A1 872 872 0.00      
4 B1 562 562 0.00      
5 B2 2545 2545 58.79      
6 B2 1105 1105 1.43      
7 E 2621 2621 75.24      
7 E 2621 2621 75.24      
8 E 975 975 22.48      
8 E 975 975 22.48      
9 E 370 370 3.09      
9 E 370 370 3.09      

Unscaled Zero Point Vibrational Energy (zpe) 8379.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8379.5 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 PBE1PBE/daug-cc-pVDZ
ABC
3.98978 0.66247 0.66247

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/daug-cc-pVDZ

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.818
B2 0.000 0.000 -0.818
H3 0.000 1.024 1.460
H4 0.000 -1.024 1.460
H5 1.024 0.000 -1.460
H6 -1.024 0.000 -1.460

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.63611.20861.20862.49792.4979
B21.63612.49792.49791.20861.2086
H31.20862.49792.04753.26003.2600
H41.20862.49792.04753.26003.2600
H52.49791.20863.26003.26002.0475
H62.49791.20863.26003.26002.0475

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 122.107 B1 B2 H6 122.107
B2 B1 H3 122.107 B2 B1 H4 122.107
H3 B1 H4 115.786 H5 B2 H6 115.786
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -1.199      
2 B -1.199      
3 H 0.599      
4 H 0.599      
5 H 0.599      
6 H 0.599      


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 -14.705 0.000 0.000
y 0.000 -14.705 0.000
z 0.000 0.000 -16.590
Traceless
 xyz
x 0.943 0.000 0.000
y 0.000 0.943 0.000
z 0.000 0.000 -1.885
Polar
3z2-r2-3.771
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 4.269 0.000 0.000
y 0.000 4.269 0.000
z 0.000 0.000 6.164


<r2> (average value of r2) Å2
<r2> 28.993
(<r2>)1/2 5.385