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

using model chemistry: wB97X-D/6-31G

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/6-31G
 hartrees
Energy at 0K-52.007727
Energy at 298.15K-52.010249
HF Energy-52.007727
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/6-31G
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 2584 2584 0.00      
2 A1 1224 1224 0.00      
3 A1 882 882 0.00      
4 B1 549 549 0.00      
5 B2 2558 2558 91.40      
6 B2 1169 1169 3.76      
7 E 2638 2638 97.32      
7 E 2638 2638 97.32      
8 E 995 995 30.39      
8 E 995 995 30.39      
9 E 446 446 1.89      
9 E 446 446 1.89      

Unscaled Zero Point Vibrational Energy (zpe) 8561.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8561.7 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 wB97X-D/6-31G
ABC
4.03603 0.66041 0.66041

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-31G

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.821
B2 0.000 0.000 -0.821
H3 0.000 1.018 1.460
H4 0.000 -1.018 1.460
H5 1.018 0.000 -1.460
H6 -1.018 0.000 -1.460

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.64231.20171.20172.49782.4978
B21.64232.49782.49781.20171.2017
H31.20172.49782.03583.25533.2553
H41.20172.49782.03583.25533.2553
H52.49781.20173.25533.25532.0358
H62.49781.20173.25533.25532.0358

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 122.108 B1 B2 H6 122.108
B2 B1 H3 122.108 B2 B1 H4 122.108
H3 B1 H4 115.785 H5 B2 H6 115.785
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B 0.032      
2 B 0.032      
3 H -0.016      
4 H -0.016      
5 H -0.016      
6 H -0.016      


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 -14.338 0.000 0.000
y 0.000 -14.338 0.000
z 0.000 0.000 -16.233
Traceless
 xyz
x 0.947 0.000 0.000
y 0.000 0.947 0.000
z 0.000 0.000 -1.895
Polar
3z2-r2-3.789
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 3.180 0.000 0.000
y 0.000 3.180 0.000
z 0.000 0.000 5.105


<r2> (average value of r2) Å2
<r2> 28.762
(<r2>)1/2 5.363