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

using model chemistry: PBEPBEultrafine/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 PBEPBEultrafine/daug-cc-pVDZ
 hartrees
Energy at 0K-51.927407
Energy at 298.15K-51.929685
HF Energy-51.927407
Nuclear repulsion energy22.225390
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 PBEPBEultrafine/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 2502 2502 0.00      
2 A1 1131 1131 0.00      
3 A1 868 868 0.00      
4 B1 583 583 0.00      
5 B2 2480 2480 44.60      
6 B2 1055 1055 0.10      
7 E 2551 2551 62.75      
7 E 2551 2551 62.75      
8 E 943 943 18.39      
8 E 943 943 18.39      
9 E 328 328 1.53      
9 E 328 328 1.53      

Unscaled Zero Point Vibrational Energy (zpe) 8131.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8131.7 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 PBEPBEultrafine/daug-cc-pVDZ
ABC
3.97107 0.66438 0.66438

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

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.814
B2 0.000 0.000 -0.814
H3 0.000 1.026 1.467
H4 0.000 -1.026 1.467
H5 1.026 0.000 -1.467
H6 -1.026 0.000 -1.467

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.62741.21631.21632.50062.5006
B21.62742.50062.50061.21631.2163
H31.21632.50062.05243.27263.2726
H41.21632.50062.05243.27263.2726
H52.50061.21633.27263.27262.0524
H62.50061.21633.27263.27262.0524

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 122.467 B1 B2 H6 122.467
B2 B1 H3 122.467 B2 B1 H4 122.467
H3 B1 H4 115.066 H5 B2 H6 115.066
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -1.559      
2 B -1.559      
3 H 0.780      
4 H 0.780      
5 H 0.780      
6 H 0.780      


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 -14.856 0.000 0.000
y 0.000 -14.856 0.000
z 0.000 0.000 -16.542
Traceless
 xyz
x 0.843 0.000 0.000
y 0.000 0.843 0.000
z 0.000 0.000 -1.685
Polar
3z2-r2-3.371
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 4.456 0.000 0.000
y 0.000 4.456 0.000
z 0.000 0.000 6.784


<r2> (average value of r2) Å2
<r2> 29.068
(<r2>)1/2 5.391