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

using model chemistry: HF/daug-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 HF/daug-cc-pVTZ
 hartrees
Energy at 0K-51.626452
Energy at 298.15K-51.629414
HF Energy-51.626452
Nuclear repulsion energy24.861464
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 HF/daug-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 2915 2637 0.19      
2 A1 2143 1938 38.72      
3 A1 1409 1274 5.84      
4 A1 1207 1091 7.74      
5 A1 799 723 5.45      
6 A2 1292 1169 0.00      
7 A2 603 545 0.00      
8 B1 2146 1941 93.22      
9 B1 852 771 1.38      
10 B2 2875 2601 65.03      
11 B2 1418 1282 282.63      
12 B2 611 552 65.82      

Unscaled Zero Point Vibrational Energy (zpe) 9133.9 cm-1
Scaled (by 0.9046) Zero Point Vibrational Energy (zpe) 8262.6 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 HF/daug-cc-pVTZ
ABC
6.63914 0.85211 0.82083

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.728 -0.111
B2 0.000 -0.728 -0.111
H3 0.904 0.000 0.584
H4 -0.904 0.000 0.584
H5 0.000 1.893 -0.031
H6 0.000 -1.893 -0.031

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.45591.35271.35271.16782.6222
B21.45591.35271.35272.62221.1678
H31.35271.35271.80762.18592.1859
H41.35271.35271.80762.18592.1859
H51.16782.62222.18592.18593.7859
H62.62221.16782.18592.18593.7859

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 57.441 B1 B2 H4 57.441
B1 B2 H6 176.067 B1 H3 B2 65.118
B1 H4 B2 65.118 B2 B1 H3 57.441
B2 B1 H4 57.441 B2 B1 H5 176.067
H3 B1 H4 83.851 H3 B1 H5 120.110
H3 B2 H4 83.851 H3 B2 H6 120.110
H4 B1 H5 120.110 H4 B2 H6 120.110
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.030      
2 B -0.030      
3 H 0.859      
4 H 0.859      
5 H -0.829      
6 H -0.829      


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 0.748 0.748
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.229 0.000 0.000
y 0.000 -14.228 0.000
z 0.000 0.000 -16.792
Traceless
 xyz
x 1.281 0.000 0.000
y 0.000 1.283 0.000
z 0.000 0.000 -2.564
Polar
3z2-r2-5.128
x2-y2-0.001
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.205 0.000 0.000
y 0.000 5.804 0.000
z 0.000 0.000 4.576


<r2> (average value of r2) Å2
<r2> 24.327
(<r2>)1/2 4.932