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

using model chemistry: B3LYPultrafine/aug-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 B3LYPultrafine/aug-cc-pVDZ
 hartrees
Energy at 0K-52.045933
Energy at 298.15K-52.048344
HF Energy-52.045933
Nuclear repulsion energy22.261047
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 B3LYPultrafine/aug-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 2563 2487 0.00      
2 A1 1185 1150 0.00      
3 A1 868 842 0.00      
4 B1 554 538 0.00      
5 B2 2540 2465 61.33      
6 B2 1120 1087 2.57      
7 E 2611 2533 81.70      
7 E 2611 2533 81.70      
8 E 986 957 22.98      
8 E 986 957 22.98      
9 E 385 374 3.99      
9 E 385 374 3.99      

Unscaled Zero Point Vibrational Energy (zpe) 8396.9 cm-1
Scaled (by 0.9704) Zero Point Vibrational Energy (zpe) 8148.4 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 B3LYPultrafine/aug-cc-pVDZ
ABC
4.00623 0.66241 0.66241

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/aug-cc-pVDZ

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.819
B2 0.000 0.000 -0.819
H3 0.000 1.022 1.460
H4 0.000 -1.022 1.460
H5 1.022 0.000 -1.460
H6 -1.022 0.000 -1.460

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.63711.20621.20622.49702.4970
B21.63712.49702.49701.20621.2062
H31.20622.49702.04333.25763.2576
H41.20622.49702.04333.25763.2576
H52.49701.20623.25763.25762.0433
H62.49701.20623.25763.25762.0433

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 122.116 B1 B2 H6 122.116
B2 B1 H3 122.116 B2 B1 H4 122.116
H3 B1 H4 115.768 H5 B2 H6 115.768
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -1.545      
2 B -1.545      
3 H 0.773      
4 H 0.773      
5 H 0.773      
6 H 0.773      


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 -14.853 0.000 0.000
y 0.000 -14.853 0.000
z 0.000 0.000 -16.826
Traceless
 xyz
x 0.986 0.000 0.000
y 0.000 0.986 0.000
z 0.000 0.000 -1.973
Polar
3z2-r2-3.946
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 4.284 0.000 0.000
y 0.000 4.284 0.000
z 0.000 0.000 6.166


<r2> (average value of r2) Å2
<r2> 29.088
(<r2>)1/2 5.393