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

using model chemistry: HF/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/cc-pVTZ
 hartrees
Energy at 0K-51.626020
Energy at 298.15K-51.628990
HF Energy-51.626020
Nuclear repulsion energy24.858000
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/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 2653 0.11      
2 A1 2143 1950 38.31      
3 A1 1409 1283 5.34      
4 A1 1211 1102 9.52      
5 A1 800 728 4.25      
6 A2 1291 1175 0.00      
7 A2 600 546 0.00      
8 B1 2145 1953 95.13      
9 B1 853 776 1.50      
10 B2 2874 2616 66.07      
11 B2 1415 1288 282.36      
12 B2 610 555 66.73      

Unscaled Zero Point Vibrational Energy (zpe) 9132.7 cm-1
Scaled (by 0.9101) Zero Point Vibrational Energy (zpe) 8311.6 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/cc-pVTZ
ABC
6.63082 0.85189 0.82092

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/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 0.903 0.000 0.585
H4 -0.903 0.000 0.585
H5 0.000 1.893 -0.028
H6 0.000 -1.893 -0.028

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.45601.35331.35331.16772.6221
B21.45601.35331.35332.62211.1677
H31.35331.35331.80642.18502.1850
H41.35331.35331.80642.18502.1850
H51.16772.62212.18502.18503.7854
H62.62211.16772.18502.18503.7854

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 57.456 B1 B2 H4 57.456
B1 B2 H6 175.893 B1 H3 B2 65.088
B1 H4 B2 65.088 B2 B1 H3 57.456
B2 B1 H4 57.456 B2 B1 H5 175.893
H3 B1 H4 83.737 H3 B1 H5 119.980
H3 B2 H4 83.737 H3 B2 H6 119.980
H4 B1 H5 119.980 H4 B2 H6 119.980
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.143      
2 B -0.143      
3 H 0.120      
4 H 0.120      
5 H 0.024      
6 H 0.024      


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 0.764 0.764
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.238 0.000 0.000
y 0.000 -14.250 0.000
z 0.000 0.000 -16.786
Traceless
 xyz
x 1.281 0.000 0.000
y 0.000 1.262 0.000
z 0.000 0.000 -2.542
Polar
3z2-r2-5.085
x2-y20.013
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.961 0.000 0.000
y 0.000 5.781 0.000
z 0.000 0.000 3.903


<r2> (average value of r2) Å2
<r2> 24.333
(<r2>)1/2 4.933