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

using model chemistry: PBE1PBE/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at PBE1PBE/3-21G
 hartrees
Energy at 0K-51.641096
Energy at 298.15K-51.643873
HF Energy-51.641096
Nuclear repulsion energy24.634550
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 PBE1PBE/3-21G
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 2896 2782 0.09      
2 A1 2040 1959 21.71      
3 A1 1380 1325 3.78      
4 A1 1135 1090 12.86      
5 A1 721 693 1.64      
6 A2 1204 1156 0.00      
7 A2 638 613 0.00      
8 B1 2022 1942 73.71      
9 B1 828 795 0.77      
10 B2 2849 2736 29.57      
11 B2 1243 1193 174.43      
12 B2 419 402 85.55      

Unscaled Zero Point Vibrational Energy (zpe) 8687.1 cm-1
Scaled (by 0.9604) Zero Point Vibrational Energy (zpe) 8343.1 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 PBE1PBE/3-21G
ABC
6.44527 0.83909 0.80728

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.734 -0.114
B2 0.000 -0.734 -0.114
H3 0.919 0.000 0.588
H4 -0.919 0.000 0.588
H5 0.000 1.905 -0.021
H6 0.000 -1.905 -0.021

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.46811.36991.36991.17462.6406
B21.46811.36991.36992.64061.1746
H31.36991.36991.83872.20122.2012
H41.36991.36991.83872.20122.2012
H51.17462.64062.20122.20123.8100
H62.64061.17462.20122.20123.8100

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 57.600 B1 B2 H4 57.600
B1 B2 H6 175.477 B1 H3 B2 64.799
B1 H4 B2 64.799 B2 B1 H3 57.600
B2 B1 H4 57.600 B2 B1 H5 175.477
H3 B1 H4 84.301 H3 B1 H5 119.587
H3 B2 H4 84.301 H3 B2 H6 119.587
H4 B1 H5 119.587 H4 B2 H6 119.587
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.108      
2 B -0.108      
3 H 0.091      
4 H 0.091      
5 H 0.017      
6 H 0.017      


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 1.195 1.195
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.307 0.000 0.000
y 0.000 -14.268 0.000
z 0.000 0.000 -16.906
Traceless
 xyz
x 1.280 0.000 0.000
y 0.000 1.338 0.000
z 0.000 0.000 -2.618
Polar
3z2-r2-5.236
x2-y2-0.039
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.228 0.000 0.000
y 0.000 5.541 0.000
z 0.000 0.000 2.617


<r2> (average value of r2) Å2
<r2> 24.628
(<r2>)1/2 4.963