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

using model chemistry: B3LYP/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 B3LYP/3-21G*
 hartrees
Energy at 0K-51.732329
Energy at 298.15K-51.735042
HF Energy-51.732329
Nuclear repulsion energy24.650007
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 B3LYP/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 2899 2789 0.07      
2 A1 2009 1932 26.45      
3 A1 1380 1327 4.18      
4 A1 1145 1101 15.93      
5 A1 728 700 1.48      
6 A2 1175 1130 0.00      
7 A2 563 542 0.00      
8 B1 1984 1909 88.56      
9 B1 831 800 0.81      
10 B2 2853 2744 27.88      
11 B2 1220 1174 169.66      
12 B2 405 389 94.22      

Unscaled Zero Point Vibrational Energy (zpe) 8595.0 cm-1
Scaled (by 0.962) Zero Point Vibrational Energy (zpe) 8268.4 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 B3LYP/3-21G*
ABC
6.41767 0.84089 0.80937

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.733 -0.113
B2 0.000 -0.733 -0.113
H3 0.919 0.000 0.593
H4 -0.919 0.000 0.593
H5 0.000 1.901 -0.028
H6 0.000 -1.901 -0.028

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.46641.37191.37191.17142.6360
B21.46641.37191.37192.63601.1714
H31.37191.37191.83882.20142.2014
H41.37191.37191.83882.20142.2014
H51.17142.63602.20142.20143.8029
H62.63601.17142.20142.20143.8029

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 57.693 B1 B2 H4 57.693
B1 B2 H6 175.813 B1 H3 B2 64.615
B1 H4 B2 64.615 B2 B1 H3 57.693
B2 B1 H4 57.693 B2 B1 H5 175.813
H3 B1 H4 84.160 H3 B1 H5 119.698
H3 B2 H4 84.160 H3 B2 H6 119.698
H4 B1 H5 119.698 H4 B2 H6 119.698
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.095      
2 B -0.095      
3 H 0.077      
4 H 0.077      
5 H 0.018      
6 H 0.018      


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 1.155 1.155
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.250 0.000 0.000
y 0.000 -14.339 0.000
z 0.000 0.000 -16.741
Traceless
 xyz
x 1.290 0.000 0.000
y 0.000 1.156 0.000
z 0.000 0.000 -2.447
Polar
3z2-r2-4.893
x2-y20.089
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.195 0.000 0.000
y 0.000 5.453 0.000
z 0.000 0.000 2.594


<r2> (average value of r2) Å2
<r2> 24.568
(<r2>)1/2 4.957