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

using model chemistry: B3LYP/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3LYP/cc-pVTZ
 hartrees
Energy at 0K-52.061494
Energy at 298.15K-52.064404
HF Energy-52.061494
Nuclear repulsion energy24.899415
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 B3LYP/cc-pVTZ
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 2834 2740 0.07      
2 A1 2094 2024 16.62      
3 A1 1364 1319 2.81      
4 A1 1123 1085 2.34      
5 A1 734 709 3.90      
6 A2 1257 1215 0.00      
7 A2 656 634 0.00      
8 B1 2093 2023 47.58      
9 B1 799 772 1.50      
10 B2 2795 2701 34.99      
11 B2 1345 1300 187.59      
12 B2 557 538 35.85      

Unscaled Zero Point Vibrational Energy (zpe) 8824.5 cm-1
Scaled (by 0.9666) Zero Point Vibrational Energy (zpe) 8529.8 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 B3LYP/cc-pVTZ
ABC
6.72532 0.85275 0.82134

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.728 -0.114
B2 0.000 -0.728 -0.114
H3 0.900 0.000 0.573
H4 -0.900 0.000 0.573
H5 0.000 1.893 -0.005
H6 0.000 -1.893 -0.005

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.45621.34571.34571.16952.6229
B21.45621.34571.34572.62291.1695
H31.34571.34571.79922.17382.1738
H41.34571.34571.79922.17382.1738
H51.16952.62292.17382.17383.7851
H62.62291.16952.17382.17383.7851

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 57.243 B1 B2 H4 57.243
B1 B2 H6 174.675 B1 H3 B2 65.514
B1 H4 B2 65.514 B2 B1 H3 57.243
B2 B1 H4 57.243 B2 B1 H5 174.675
H3 B1 H4 83.906 H3 B1 H5 119.432
H3 B2 H4 83.906 H3 B2 H6 119.432
H4 B1 H5 119.432 H4 B2 H6 119.432
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.171      
2 B -0.171      
3 H 0.134      
4 H 0.134      
5 H 0.037      
6 H 0.037      


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 0.848 0.848
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.057 0.000 0.000
y 0.000 -14.325 0.000
z 0.000 0.000 -16.604
Traceless
 xyz
x 1.408 0.000 0.000
y 0.000 1.005 0.000
z 0.000 0.000 -2.414
Polar
3z2-r2-4.827
x2-y20.268
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.026 0.000 0.000
y 0.000 6.024 0.000
z 0.000 0.000 3.971


<r2> (average value of r2) Å2
<r2> 24.235
(<r2>)1/2 4.923