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

using model chemistry: HF/SDD

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/SDD
 hartrees
Energy at 0K-51.566213
Energy at 298.15K 
HF Energy-51.566213
Nuclear repulsion energy24.433975
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/SDD
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 2989 2692 1.33      
2 A1 2005 1806 102.12      
3 A1 1392 1254 10.43      
4 A1 1243 1120 31.52      
5 A1 806 725 8.61      
6 A2 1158 1043 0.00      
7 A2 412i 371i 0.00      
8 B1 2013 1812 213.53      
9 B1 870 783 0.63      
10 B2 2939 2646 66.50      
11 B2 1229 1107 277.48      
12 B2 396 356 248.45      

Unscaled Zero Point Vibrational Energy (zpe) 8314.7 cm-1
Scaled (by 0.9004) Zero Point Vibrational Energy (zpe) 7486.5 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/SDD
ABC
6.09630 0.82997 0.80044

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/SDD

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.739 -0.109
B2 0.000 -0.739 -0.109
H3 0.934 0.000 0.629
H4 -0.934 0.000 0.629
H5 0.000 1.901 -0.081
H6 0.000 -1.901 -0.081

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.47751.40081.40081.16292.6402
B21.47751.40081.40082.64021.1629
H31.40081.40081.86742.23412.2341
H41.40081.40081.86742.23412.2341
H51.16292.64022.23412.23413.8027
H62.64021.16292.23412.23413.8027

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 58.172 B1 B2 H4 58.172
B1 B2 H6 178.621 B1 H3 B2 63.656
B1 H4 B2 63.656 B2 B1 H3 58.172
B2 B1 H4 58.172 B2 B1 H5 178.621
H3 B1 H4 83.604 H3 B1 H5 120.966
H3 B2 H4 83.604 H3 B2 H6 120.966
H4 B1 H5 120.966 H4 B2 H6 120.966
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/SDD Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.176      
2 B -0.176      
3 H 0.050      
4 H 0.050      
5 H 0.127      
6 H 0.127      


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 1.025 1.025
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.685 0.000 0.000
y 0.000 -14.258 0.000
z 0.000 0.000 -17.063
Traceless
 xyz
x 0.976 0.000 0.000
y 0.000 1.616 0.000
z 0.000 0.000 -2.591
Polar
3z2-r2-5.182
x2-y2-0.427
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.039 0.000 0.000
y 0.000 5.694 0.000
z 0.000 0.000 2.910


<r2> (average value of r2) Å2
<r2> 24.933
(<r2>)1/2 4.993