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

using model chemistry: LSDA/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 LSDA/6-31G*
 hartrees
Energy at 0K-51.677346
Energy at 298.15K-51.680206
HF Energy-51.677346
Nuclear repulsion energy24.752153
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/6-31G*
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 2799 2746 0.04      
2 A1 2128 2088 11.19      
3 A1 1364 1338 1.93      
4 A1 1111 1090 0.03      
5 A1 695 682 1.44      
6 A2 1294 1270 0.00      
7 A2 685 672 0.00      
8 B1 2139 2099 40.60      
9 B1 769 754 1.86      
10 B2 2759 2707 19.25      
11 B2 1328 1303 145.32      
12 B2 535 525 23.47      

Unscaled Zero Point Vibrational Energy (zpe) 8802.2 cm-1
Scaled (by 0.9813) Zero Point Vibrational Energy (zpe) 8637.6 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/6-31G*
ABC
6.65770 0.84277 0.81232

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.731 -0.121
B2 0.000 -0.731 -0.121
H3 0.902 0.000 0.566
H4 -0.902 0.000 0.566
H5 0.000 1.908 0.039
H6 0.000 -1.908 0.039

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.46271.34941.34941.18712.6438
B21.46271.34941.34942.64381.1871
H31.34941.34941.80452.17502.1750
H41.34941.34941.80452.17502.1750
H51.18712.64382.17502.17503.8152
H62.64381.18712.17502.17503.8152

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 57.183 B1 B2 H4 57.183
B1 B2 H6 172.244 B1 H3 B2 65.635
B1 H4 B2 65.635 B2 B1 H3 57.183
B2 B1 H4 57.183 B2 B1 H5 172.244
H3 B1 H4 83.921 H3 B1 H5 117.924
H3 B2 H4 83.921 H3 B2 H6 117.924
H4 B1 H5 117.924 H4 B2 H6 117.924
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.204      
2 B -0.204      
3 H 0.132      
4 H 0.132      
5 H 0.072      
6 H 0.072      


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 1.192 1.192
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.506 0.000 0.000
y 0.000 -13.846 0.000
z 0.000 0.000 -16.048
Traceless
 xyz
x 1.441 0.000 0.000
y 0.000 0.931 0.000
z 0.000 0.000 -2.372
Polar
3z2-r2-4.744
x2-y20.340
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.275 0.000 0.000
y 0.000 5.673 0.000
z 0.000 0.000 2.765


<r2> (average value of r2) Å2
<r2> 24.080
(<r2>)1/2 4.907