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

using model chemistry: B1B95/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B1B95/cc-pVTZ
 hartrees
Energy at 0K-52.010725
Energy at 298.15K-52.013672
HF Energy-52.010725
Nuclear repulsion energy24.906800
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 B1B95/cc-pVTZ
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 2838 2716 0.02      
2 A1 2148 2056 13.76      
3 A1 1358 1300 2.51      
4 A1 1115 1067 1.56      
5 A1 733 702 3.24      
6 A2 1340 1283 0.00      
7 A2 698 668 0.00      
8 B1 2152 2060 39.21      
9 B1 796 762 1.79      
10 B2 2797 2677 37.55      
11 B2 1392 1333 190.70      
12 B2 574 549 25.62      

Unscaled Zero Point Vibrational Energy (zpe) 8971.2 cm-1
Scaled (by 0.9571) Zero Point Vibrational Energy (zpe) 8586.3 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 B1B95/cc-pVTZ
ABC
6.79004 0.85064 0.82016

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.730 -0.116
B2 0.000 -0.730 -0.116
H3 0.894 0.000 0.568
H4 -0.894 0.000 0.568
H5 0.000 1.893 0.011
H6 0.000 -1.893 0.011

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.45911.34121.34121.17052.6258
B21.45911.34121.34122.62581.1705
H31.34121.34121.78732.16652.1665
H41.34121.34121.78732.16652.1665
H51.17052.62582.16652.16653.7864
H62.62581.17052.16652.16653.7864

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 57.046 B1 B2 H4 57.046
B1 B2 H6 173.805 B1 H3 B2 65.908
B1 H4 B2 65.908 B2 B1 H3 57.046
B2 B1 H4 57.046 B2 B1 H5 173.805
H3 B1 H4 83.562 H3 B1 H5 119.061
H3 B2 H4 83.562 H3 B2 H6 119.061
H4 B1 H5 119.061 H4 B2 H6 119.061
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.207      
2 B -0.207      
3 H 0.186      
4 H 0.186      
5 H 0.021      
6 H 0.021      


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 0.877 0.877
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.923 0.000 0.000
y 0.000 -14.090 0.000
z 0.000 0.000 -16.441
Traceless
 xyz
x 1.343 0.000 0.000
y 0.000 1.091 0.000
z 0.000 0.000 -2.434
Polar
3z2-r2-4.869
x2-y20.168
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.964 0.000 0.000
y 0.000 6.010 0.000
z 0.000 0.000 3.921


<r2> (average value of r2) Å2
<r2> 24.124
(<r2>)1/2 4.912