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

using model chemistry: LSDA/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-51.685555
Energy at 298.15K-51.688407
HF Energy-51.685555
Nuclear repulsion energy24.742228
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/6-31+G**
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 2783 2741 0.00      
2 A1 2114 2083 14.31      
3 A1 1352 1332 1.65      
4 A1 1067 1051 0.33      
5 A1 683 673 6.93      
6 A2 1303 1284 0.00      
7 A2 684 674 0.00      
8 B1 2131 2099 28.69      
9 B1 760 749 1.47      
10 B2 2743 2702 21.20      
11 B2 1334 1314 147.80      
12 B2 529 521 24.83      

Unscaled Zero Point Vibrational Energy (zpe) 8741.3 cm-1
Scaled (by 0.985) Zero Point Vibrational Energy (zpe) 8610.1 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/6-31+G**
ABC
6.69439 0.84107 0.80976

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.733 -0.119
B2 0.000 -0.733 -0.119
H3 0.904 0.000 0.562
H4 -0.904 0.000 0.562
H5 0.000 1.909 0.031
H6 0.000 -1.909 0.031

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.46551.34811.34811.18602.6464
B21.46551.34811.34812.64641.1860
H31.34811.34811.80772.17842.1784
H41.34811.34811.80772.17842.1784
H51.18602.64642.17842.17843.8188
H62.64641.18602.17842.17843.8188

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 57.073 B1 B2 H4 57.073
B1 B2 H6 172.781 B1 H3 B2 65.853
B1 H4 B2 65.853 B2 B1 H3 57.073
B2 B1 H4 57.073 B2 B1 H5 172.781
H3 B1 H4 84.207 H3 B1 H5 118.411
H3 B2 H4 84.207 H3 B2 H6 118.411
H4 B1 H5 118.411 H4 B2 H6 118.411
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.145      
2 B -0.145      
3 H 0.102      
4 H 0.102      
5 H 0.043      
6 H 0.043      


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 1.110 1.110
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.978 0.000 0.000
y 0.000 -14.311 0.000
z 0.000 0.000 -16.899
Traceless
 xyz
x 1.627 0.000 0.000
y 0.000 1.128 0.000
z 0.000 0.000 -2.754
Polar
3z2-r2-5.509
x2-y20.333
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.611 0.000 0.000
y 0.000 6.381 0.000
z 0.000 0.000 3.977


<r2> (average value of r2) Å2
<r2> 24.477
(<r2>)1/2 4.947