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

using model chemistry: B97D3/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2D 1A1
Energy calculated at B97D3/6-31G*
 hartrees
Energy at 0K-52.005110
Energy at 298.15K-52.007491
HF Energy-52.005110
Nuclear repulsion energy22.162007
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 B97D3/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 2532 2482 0.00      
2 A1 1182 1159 0.00      
3 A1 861 844 0.00      
4 B1 554 543 0.00      
5 B2 2509 2460 75.52      
6 B2 1117 1095 2.67      
7 E 2573 2522 90.38      
7 E 2573 2522 90.38      
8 E 974 955 26.13      
8 E 974 955 26.13      
9 E 387 379 1.80      
9 E 387 379 1.80      

Unscaled Zero Point Vibrational Energy (zpe) 8311.5 cm-1
Scaled (by 0.9804) Zero Point Vibrational Energy (zpe) 8148.6 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 B97D3/6-31G*
ABC
4.00398 0.65501 0.65501

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-31G*

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.823
B2 0.000 0.000 -0.823
H3 0.000 1.022 1.471
H4 0.000 -1.022 1.471
H5 1.022 0.000 -1.471
H6 -1.022 0.000 -1.471

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.64541.21051.21052.51152.5115
B21.64542.51152.51151.21051.2105
H31.21052.51152.04393.27873.2787
H41.21052.51152.04393.27873.2787
H52.51151.21053.27873.27872.0439
H62.51151.21053.27873.27872.0439

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 115.993 H5 B2 H6 115.993
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.008      
2 B -0.008      
3 H 0.004      
4 H 0.004      
5 H 0.004      
6 H 0.004      


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 -14.241 0.000 0.000
y 0.000 -14.241 0.000
z 0.000 0.000 -16.134
Traceless
 xyz
x 0.946 0.000 0.000
y 0.000 0.946 0.000
z 0.000 0.000 -1.893
Polar
3z2-r2-3.785
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 3.275 0.000 0.000
y 0.000 3.275 0.000
z 0.000 0.000 5.551


<r2> (average value of r2) Å2
<r2> 28.895
(<r2>)1/2 5.375