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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-52.021609
Energy at 298.15K-52.024078
HF Energy-52.021609
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 1222 1222 0.00      
3 A1 865 865 0.00      
4 B1 538 538 0.00      
5 B2 2561 2561 82.51      
6 B2 1157 1157 6.44      
7 E 2639 2639 86.89      
7 E 2639 2639 86.89      
8 E 996 996 30.29      
8 E 996 996 30.29      
9 E 425 425 2.83      
9 E 425 425 2.83      

Unscaled Zero Point Vibrational Energy (zpe) 8522.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8522.8 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
4.03264 0.65744 0.65744

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 0.824
B2 0.000 0.000 -0.824
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
B11.64811.20081.20082.50122.5012
B21.64812.50122.50121.20081.2008
H31.20082.50122.03663.25673.2567
H41.20082.50122.03663.25673.2567
H52.50121.20083.25673.25672.0366
H62.50121.20083.25673.25672.0366

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 122.004 B1 B2 H6 122.004
B2 B1 H3 122.004 B2 B1 H4 122.004
H3 B1 H4 115.992 H5 B2 H6 115.992
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 0.044      
2 B 0.044      
3 H -0.022      
4 H -0.022      
5 H -0.022      
6 H -0.022      


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 -14.235 0.000 0.000
y 0.000 -14.235 0.000
z 0.000 0.000 -16.212
Traceless
 xyz
x 0.988 0.000 0.000
y 0.000 0.988 0.000
z 0.000 0.000 -1.976
Polar
3z2-r2-3.953
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 3.238 0.000 0.000
y 0.000 3.238 0.000
z 0.000 0.000 5.132


<r2> (average value of r2) Å2
<r2> 28.773
(<r2>)1/2 5.364