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

using model chemistry: PBEPBE/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 PBEPBE/6-31G**
 hartrees
Energy at 0K-51.932404
Energy at 298.15K-51.935242
HF Energy-51.932404
Nuclear repulsion energy24.625437
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 PBEPBE/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 2787 2748 0.07      
2 A1 2080 2051 18.57      
3 A1 1343 1324 2.10      
4 A1 1101 1086 1.42      
5 A1 711 701 0.97      
6 A2 1252 1234 0.00      
7 A2 656 647 0.00      
8 B1 2094 2065 59.59      
9 B1 782 771 2.04      
10 B2 2749 2711 29.52      
11 B2 1308 1291 156.22      
12 B2 507 500 27.16      

Unscaled Zero Point Vibrational Energy (zpe) 8683.5 cm-1
Scaled (by 0.9863) Zero Point Vibrational Energy (zpe) 8564.6 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 PBEPBE/6-31G**
ABC
6.59204 0.83239 0.80346

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.737 -0.121
B2 0.000 -0.737 -0.121
H3 0.903 0.000 0.576
H4 -0.903 0.000 0.576
H5 0.000 1.912 0.030
H6 0.000 -1.912 0.030

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.47451.35831.35831.18472.6538
B21.47451.35831.35832.65381.1847
H31.35831.35831.80582.18392.1839
H41.35831.35831.80582.18392.1839
H51.18472.65382.18392.18393.8243
H62.65381.18472.18392.18393.8243

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 57.128 B1 B2 H4 57.128
B1 B2 H6 172.643 B1 H3 B2 65.745
B1 H4 B2 65.745 B2 B1 H3 57.128
B2 B1 H4 57.128 B2 B1 H5 172.643
H3 B1 H4 83.322 H3 B1 H5 118.201
H3 B2 H4 83.322 H3 B2 H6 118.201
H4 B1 H5 118.201 H4 B2 H6 118.201
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.109      
2 B -0.109      
3 H 0.078      
4 H 0.078      
5 H 0.031      
6 H 0.031      


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 1.092 1.092
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.546 0.000 0.000
y 0.000 -13.855 0.000
z 0.000 0.000 -15.936
Traceless
 xyz
x 1.349 0.000 0.000
y 0.000 0.886 0.000
z 0.000 0.000 -2.235
Polar
3z2-r2-4.470
x2-y20.308
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.308 0.000 0.000
y 0.000 5.695 0.000
z 0.000 0.000 2.821


<r2> (average value of r2) Å2
<r2> 24.214
(<r2>)1/2 4.921