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

using model chemistry: PBE1PBE/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at PBE1PBE/6-31G**
 hartrees
Energy at 0K-51.945449
Energy at 298.15K-51.948353
HF Energy-51.945449
Nuclear repulsion energy24.771234
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 PBE1PBE/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 2862 2728 0.18      
2 A1 2151 2050 22.57      
3 A1 1386 1321 3.11      
4 A1 1171 1116 2.77      
5 A1 732 698 0.76      
6 A2 1286 1226 0.00      
7 A2 670 639 0.00      
8 B1 2159 2057 69.24      
9 B1 802 764 2.37      
10 B2 2823 2690 38.16      
11 B2 1358 1294 194.79      
12 B2 543 517 35.85      

Unscaled Zero Point Vibrational Energy (zpe) 8971.1 cm-1
Scaled (by 0.9531) Zero Point Vibrational Energy (zpe) 8550.4 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 PBE1PBE/6-31G**
ABC
6.64507 0.84402 0.81402

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.731 -0.119
B2 0.000 -0.731 -0.119
H3 0.901 0.000 0.574
H4 -0.901 0.000 0.574
H5 0.000 1.903 0.021
H6 0.000 -1.903 0.021

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.46271.35191.35191.17962.6376
B21.46271.35191.35192.63761.1796
H31.35191.35191.80212.17652.1765
H41.35191.35191.80212.17652.1765
H51.17962.63762.17652.17653.8051
H62.63761.17962.17652.17653.8051

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 57.249 B1 B2 H4 57.249
B1 B2 H6 173.167 B1 H3 B2 65.502
B1 H4 B2 65.502 B2 B1 H3 57.249
B2 B1 H4 57.249 B2 B1 H5 173.167
H3 B1 H4 83.601 H3 B1 H5 118.432
H3 B2 H4 83.601 H3 B2 H6 118.432
H4 B1 H5 118.432 H4 B2 H6 118.432
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.171      
2 B -0.171      
3 H 0.105      
4 H 0.105      
5 H 0.065      
6 H 0.065      


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 1.068 1.068
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.585 0.000 0.000
y 0.000 -13.872 0.000
z 0.000 0.000 -16.020
Traceless
 xyz
x 1.362 0.000 0.000
y 0.000 0.930 0.000
z 0.000 0.000 -2.292
Polar
3z2-r2-4.584
x2-y20.288
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.245 0.000 0.000
y 0.000 5.559 0.000
z 0.000 0.000 2.751


<r2> (average value of r2) Å2
<r2> 24.066
(<r2>)1/2 4.906