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

using model chemistry: wB97X-D/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 wB97X-D/6-31G*
 hartrees
Energy at 0K-52.010128
Energy at 298.15K-52.012998
HF Energy-52.010128
Nuclear repulsion energy 
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 wB97X-D/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 2852 2705 0.22      
2 A1 2126 2016 33.81      
3 A1 1383 1312 3.40      
4 A1 1176 1115 5.33      
5 A1 737 699 1.57      
6 A2 1265 1200 0.00      
7 A2 625 593 0.00      
8 B1 2142 2031 87.21      
9 B1 791 751 2.09      
10 B2 2812 2667 47.87      
11 B2 1354 1284 212.91      
12 B2 545 517 45.54      

Unscaled Zero Point Vibrational Energy (zpe) 8903.6 cm-1
Scaled (by 0.9485) Zero Point Vibrational Energy (zpe) 8445.0 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 wB97X-D/6-31G*
ABC
6.63798 0.84441 0.81395

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.729 -0.114
B2 0.000 -0.729 -0.114
H3 0.901 0.000 0.564
H4 -0.901 0.000 0.564
H5 0.000 1.901 0.006
H6 0.000 -1.901 0.006

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.45701.34221.34221.17892.6325
B21.45701.34221.34222.63251.1789
H31.34221.34221.80102.17642.1764
H41.34221.34221.80102.17642.1764
H51.17892.63252.17642.17643.8026
H62.63251.17892.17642.17643.8026

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 57.127 B1 B2 H4 57.127
B1 B2 H6 174.142 B1 H3 B2 65.747
B1 H4 B2 65.747 B2 B1 H3 57.127
B2 B1 H4 57.127 B2 B1 H5 174.142
H3 B1 H4 84.279 H3 B1 H5 119.235
H3 B2 H4 84.279 H3 B2 H6 119.235
H4 B1 H5 119.235 H4 B2 H6 119.235
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.157      
2 B -0.157      
3 H 0.090      
4 H 0.090      
5 H 0.067      
6 H 0.067      


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 1.039 1.039
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.608 0.000 0.000
y 0.000 -13.881 0.000
z 0.000 0.000 -16.021
Traceless
 xyz
x 1.343 0.000 0.000
y 0.000 0.934 0.000
z 0.000 0.000 -2.277
Polar
3z2-r2-4.553
x2-y20.273
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.274 0.000 0.000
y 0.000 5.595 0.000
z 0.000 0.000 2.769


<r2> (average value of r2) Å2
<r2> 24.076
(<r2>)1/2 4.907