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

using model chemistry: LSDA/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at LSDA/6-311G*
 hartrees
Energy at 0K-51.689063
Energy at 298.15K-51.691933
HF Energy-51.689063
Nuclear repulsion energy24.779114
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 LSDA/6-311G*
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 2759 2714 0.01      
2 A1 2090 2056 8.93      
3 A1 1351 1329 2.13      
4 A1 1105 1087 0.30      
5 A1 688 677 4.60      
6 A2 1258 1237 0.00      
7 A2 686 674 0.00      
8 B1 2097 2063 23.51      
9 B1 755 743 1.35      
10 B2 2715 2671 18.21      
11 B2 1293 1272 148.05      
12 B2 554 545 25.16      

Unscaled Zero Point Vibrational Energy (zpe) 8675.5 cm-1
Scaled (by 0.9837) Zero Point Vibrational Energy (zpe) 8534.1 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 LSDA/6-311G*
ABC
6.60260 0.84646 0.81708

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.729 -0.121
B2 0.000 -0.729 -0.121
H3 0.901 0.000 0.579
H4 -0.901 0.000 0.579
H5 0.000 1.903 0.025
H6 0.000 -1.903 0.025

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.45751.35351.35351.18372.6362
B21.45751.35351.35352.63621.1837
H31.35351.35351.80112.17742.1774
H41.35351.35351.80112.17742.1774
H51.18372.63622.17742.17743.8069
H62.63621.18372.17742.17743.8069

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 57.422 B1 B2 H4 57.422
B1 B2 H6 172.924 B1 H3 B2 65.156
B1 H4 B2 65.156 B2 B1 H3 57.422
B2 B1 H4 57.422 B2 B1 H5 172.924
H3 B1 H4 83.420 H3 B1 H5 118.076
H3 B2 H4 83.420 H3 B2 H6 118.076
H4 B1 H5 118.076 H4 B2 H6 118.076
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.311      
2 B -0.311      
3 H 0.247      
4 H 0.247      
5 H 0.064      
6 H 0.064      


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 1.124 1.124
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.139 0.000 0.000
y 0.000 -14.205 0.000
z 0.000 0.000 -16.865
Traceless
 xyz
x 1.396 0.000 0.000
y 0.000 1.297 0.000
z 0.000 0.000 -2.693
Polar
3z2-r2-5.386
x2-y20.066
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.891 0.000 0.000
y 0.000 6.153 0.000
z 0.000 0.000 3.590


<r2> (average value of r2) Å2
<r2> 24.409
(<r2>)1/2 4.941