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

using model chemistry: BLYP/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at BLYP/6-31G(2df,p)
 hartrees
Energy at 0K-51.991784
Energy at 298.15K-51.994602
HF Energy-51.991784
Nuclear repulsion energy24.685795
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 BLYP/6-31G(2df,p)
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 2804 2788 0.20      
2 A1 2028 2017 18.72      
3 A1 1337 1329 1.80      
4 A1 1113 1107 2.71      
5 A1 729 725 1.21      
6 A2 1201 1194 0.00      
7 A2 610 607 0.00      
8 B1 2030 2019 64.56      
9 B1 795 790 1.62      
10 B2 2763 2748 25.17      
11 B2 1292 1285 164.21      
12 B2 497 494 33.92      

Unscaled Zero Point Vibrational Energy (zpe) 8599.0 cm-1
Scaled (by 0.9945) Zero Point Vibrational Energy (zpe) 8551.7 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 BLYP/6-31G(2df,p)
ABC
6.57048 0.83783 0.80923

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-31G(2df,p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.735 -0.118
B2 0.000 -0.735 -0.118
H3 0.902 0.000 0.588
H4 -0.902 0.000 0.588
H5 0.000 1.905 0.001
H6 0.000 -1.905 0.001

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.46901.36051.36051.17652.6421
B21.46901.36051.36052.64211.1765
H31.36051.36051.80322.18782.1878
H41.36051.36051.80322.18782.1878
H51.17652.64212.18782.18783.8099
H62.64211.17652.18782.18783.8099

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 57.324 B1 B2 H4 57.324
B1 B2 H6 174.207 B1 H3 B2 65.351
B1 H4 B2 65.351 B2 B1 H3 57.324
B2 B1 H4 57.324 B2 B1 H5 174.207
H3 B1 H4 83.011 H3 B1 H5 118.995
H3 B2 H4 83.011 H3 B2 H6 118.995
H4 B1 H5 118.995 H4 B2 H6 118.995
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.162      
2 B -0.162      
3 H 0.111      
4 H 0.111      
5 H 0.052      
6 H 0.052      


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 0.916 0.916
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.598 0.000 0.000
y 0.000 -14.037 0.000
z 0.000 0.000 -15.715
Traceless
 xyz
x 1.278 0.000 0.000
y 0.000 0.619 0.000
z 0.000 0.000 -1.898
Polar
3z2-r2-3.795
x2-y20.439
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.472 0.000 0.000
y 0.000 5.615 0.000
z 0.000 0.000 3.141


<r2> (average value of r2) Å2
<r2> 24.135
(<r2>)1/2 4.913