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All results from a given calculation for HBHHBH (Diborane(4) C2V)

using model chemistry: TPSSh/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at TPSSh/6-311G**
 hartrees
Energy at 0K-52.059398
Energy at 298.15K-52.062291
HF Energy-52.059398
Nuclear repulsion energy24.756506
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 TPSSh/6-311G**
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 2834 2834 0.04      
2 A1 2091 2091 24.09      
3 A1 1349 1349 3.18      
4 A1 1133 1133 5.70      
5 A1 744 744 3.66      
6 A2 1267 1267 0.00      
7 A2 643 643 0.00      
8 B1 2088 2088 62.06      
9 B1 806 806 1.65      
10 B2 2795 2795 37.19      
11 B2 1337 1337 191.68      
12 B2 537 537 39.10      

Unscaled Zero Point Vibrational Energy (zpe) 8810.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8810.1 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 TPSSh/6-311G**
ABC
6.62981 0.84198 0.81266

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/6-311G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.733 -0.118
B2 0.000 -0.733 -0.118
H3 0.900 0.000 0.582
H4 -0.900 0.000 0.582
H5 0.000 1.899 0.006
H6 0.000 -1.899 0.006

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.46671.35511.35511.17242.6354
B21.46671.35511.35512.63541.1724
H31.35511.35511.79992.17902.1790
H41.35511.35511.79992.17902.1790
H51.17242.63542.17902.17903.7984
H62.63541.17242.17902.17903.7984

picture of Diborane(4) C2V state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 B2 H3 57.238 B1 B2 H4 57.238
B1 B2 H6 173.946 B1 H3 B2 65.525
B1 H4 B2 65.525 B2 B1 H3 57.238
B2 B1 H4 57.238 B2 B1 H5 173.946
H3 B1 H4 83.227 H3 B1 H5 118.930
H3 B2 H4 83.227 H3 B2 H6 118.930
H4 B1 H5 118.930 H4 B2 H6 118.930
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.105      
2 B -0.105      
3 H 0.108      
4 H 0.108      
5 H -0.003      
6 H -0.003      


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 0.985 0.985
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.802 0.000 0.000
y 0.000 5.955 0.000
z 0.000 0.000 3.524


<r2> (average value of r2) Å2
<r2> 24.290
(<r2>)1/2 4.928