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

using model chemistry: B1B95/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B1B95/6-31G*
 hartrees
Energy at 0K-51.988001
Energy at 298.15K-51.990914
HF Energy-51.988001
Nuclear repulsion energy24.814861
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 B1B95/6-31G*
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 2866 2721 0.14      
2 A1 2169 2059 22.31      
3 A1 1379 1309 2.99      
4 A1 1169 1110 2.71      
5 A1 734 697 0.45      
6 A2 1327 1259 0.00      
7 A2 688 653 0.00      
8 B1 2176 2066 69.13      
9 B1 805 765 2.92      
10 B2 2827 2684 42.72      
11 B2 1383 1313 197.53      
12 B2 548 520 31.95      

Unscaled Zero Point Vibrational Energy (zpe) 9034.8 cm-1
Scaled (by 0.9493) Zero Point Vibrational Energy (zpe) 8576.7 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 B1B95/6-31G*
ABC
6.70773 0.84526 0.81544

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.731 -0.119
B2 0.000 -0.731 -0.119
H3 0.897 0.000 0.571
H4 -0.897 0.000 0.571
H5 0.000 1.899 0.025
H6 0.000 -1.899 0.025

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.46301.34721.34721.17652.6346
B21.46301.34721.34722.63461.1765
H31.34721.34721.79372.17012.1701
H41.34721.34721.79372.17012.1701
H51.17652.63462.17012.17013.7984
H62.63461.17652.17012.17013.7984

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 57.115 B1 B2 H4 57.115
B1 B2 H6 172.984 B1 H3 B2 65.771
B1 H4 B2 65.771 B2 B1 H3 57.115
B2 B1 H4 57.115 B2 B1 H5 172.984
H3 B1 H4 83.473 H3 B1 H5 118.448
H3 B2 H4 83.473 H3 B2 H6 118.448
H4 B1 H5 118.448 H4 B2 H6 118.448
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.159      
2 B -0.159      
3 H 0.097      
4 H 0.097      
5 H 0.062      
6 H 0.062      


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 1.048 1.048
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.526 0.000 0.000
y 0.000 -13.904 0.000
z 0.000 0.000 -15.917
Traceless
 xyz
x 1.385 0.000 0.000
y 0.000 0.818 0.000
z 0.000 0.000 -2.203
Polar
3z2-r2-4.405
x2-y20.378
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.199 0.000 0.000
y 0.000 5.540 0.000
z 0.000 0.000 2.716


<r2> (average value of r2) Å2
<r2> 23.992
(<r2>)1/2 4.898