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

using model chemistry: M06-2X/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 M06-2X/6-31G**
 hartrees
Energy at 0K-51.998133
Energy at 298.15K-52.001072
HF Energy-51.998133
Nuclear repulsion energy24.831672
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 M06-2X/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 2889 2746 0.21      
2 A1 2166 2058 20.03      
3 A1 1372 1304 3.39      
4 A1 1127 1071 2.58      
5 A1 741 704 0.42      
6 A2 1347 1280 0.00      
7 A2 705 670 0.00      
8 B1 2174 2066 68.35      
9 B1 816 775 2.72      
10 B2 2850 2709 38.13      
11 B2 1399 1330 214.25      
12 B2 559 531 34.37      

Unscaled Zero Point Vibrational Energy (zpe) 9071.4 cm-1
Scaled (by 0.9504) Zero Point Vibrational Energy (zpe) 8621.4 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 M06-2X/6-31G**
ABC
6.79389 0.84365 0.81358

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/6-31G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.733 -0.117
B2 0.000 -0.733 -0.117
H3 0.894 0.000 0.565
H4 -0.894 0.000 0.565
H5 0.000 1.899 0.020
H6 0.000 -1.899 0.020

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.46661.34241.34241.17382.6360
B21.46661.34241.34242.63601.1738
H31.34241.34241.78742.16872.1687
H41.34241.34241.78742.16872.1687
H51.17382.63602.16872.16873.7982
H62.63601.17382.16872.16873.7982

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 56.888 B1 B2 H4 56.888
B1 B2 H6 173.323 B1 H3 B2 66.224
B1 H4 B2 66.224 B2 B1 H3 56.888
B2 B1 H4 56.888 B2 B1 H5 173.323
H3 B1 H4 83.481 H3 B1 H5 118.913
H3 B2 H4 83.481 H3 B2 H6 118.913
H4 B1 H5 118.913 H4 B2 H6 118.913
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.085      
2 B -0.085      
3 H 0.050      
4 H 0.050      
5 H 0.034      
6 H 0.034      


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 1.016 1.016
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.613 0.000 0.000
y 0.000 -13.948 0.000
z 0.000 0.000 -15.994
Traceless
 xyz
x 1.359 0.000 0.000
y 0.000 0.855 0.000
z 0.000 0.000 -2.214
Polar
3z2-r2-4.427
x2-y20.336
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.261 0.000 0.000
y 0.000 5.574 0.000
z 0.000 0.000 2.734


<r2> (average value of r2) Å2
<r2> 24.033
(<r2>)1/2 4.902