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

using model chemistry: PBEPBE/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-51.936432
Energy at 298.15K-51.939255
HF Energy-51.936432
Nuclear repulsion energy24.611601
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/6-31+G**
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 2782 2750 0.01      
2 A1 2077 2053 24.41      
3 A1 1337 1322 1.81      
4 A1 1088 1076 0.22      
5 A1 698 690 5.81      
6 A2 1253 1239 0.00      
7 A2 652 645 0.00      
8 B1 2091 2067 48.63      
9 B1 773 765 1.68      
10 B2 2744 2712 35.33      
11 B2 1309 1294 163.45      
12 B2 500 494 30.29      

Unscaled Zero Point Vibrational Energy (zpe) 8651.8 cm-1
Scaled (by 0.9886) Zero Point Vibrational Energy (zpe) 8553.2 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/6-31+G**
ABC
6.59845 0.83157 0.80165

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.738 -0.120
B2 0.000 -0.738 -0.120
H3 0.906 0.000 0.573
H4 -0.906 0.000 0.573
H5 0.000 1.914 0.025
H6 0.000 -1.914 0.025

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.47581.35841.35841.18502.6558
B21.47581.35841.35842.65581.1850
H31.35841.35841.81272.18752.1875
H41.35841.35841.81272.18752.1875
H51.18502.65582.18752.18753.8281
H62.65581.18502.18752.18753.8281

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 57.099 B1 B2 H4 57.099
B1 B2 H6 173.005 B1 H3 B2 65.803
B1 H4 B2 65.803 B2 B1 H3 57.099
B2 B1 H4 57.099 B2 B1 H5 173.005
H3 B1 H4 83.702 H3 B1 H5 118.495
H3 B2 H4 83.702 H3 B2 H6 118.495
H4 B1 H5 118.495 H4 B2 H6 118.495
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.109      
2 B -0.109      
3 H 0.083      
4 H 0.083      
5 H 0.026      
6 H 0.026      


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 1.030 1.030
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.044 0.000 0.000
y 0.000 -14.364 0.000
z 0.000 0.000 -16.873
Traceless
 xyz
x 1.575 0.000 0.000
y 0.000 1.094 0.000
z 0.000 0.000 -2.669
Polar
3z2-r2-5.338
x2-y20.320
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.623 0.000 0.000
y 0.000 6.392 0.000
z 0.000 0.000 4.032


<r2> (average value of r2) Å2
<r2> 24.642
(<r2>)1/2 4.964