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

using model chemistry: B3LYP/aug-cc-pCVTZ

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/aug-cc-pCVTZ
 hartrees
Energy at 0K-52.063432
Energy at 298.15K 
HF Energy-52.063432
Nuclear repulsion energy24.900119
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/aug-cc-pCVTZ
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 2830 2830 0.08      
2 A1 2094 2094 17.55      
3 A1 1363 1363 3.60      
4 A1 1120 1120 1.86      
5 A1 732 732 4.87      
6 A2 1257 1257 0.00      
7 A2 657 657 0.00      
8 B1 2092 2092 45.18      
9 B1 797 797 1.46      
10 B2 2792 2792 35.33      
11 B2 1346 1346 187.83      
12 B2 558 558 34.90      

Unscaled Zero Point Vibrational Energy (zpe) 8818.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8818.7 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 B3LYP/aug-cc-pCVTZ
ABC
6.72454 0.85289 0.82149

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/aug-cc-pCVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.728 -0.113
B2 0.000 -0.728 -0.113
H3 0.900 0.000 0.573
H4 -0.900 0.000 0.573
H5 0.000 1.893 -0.006
H6 0.000 -1.893 -0.006

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.45591.34571.34571.16972.6229
B21.45591.34571.34572.62291.1697
H31.34571.34571.79922.17432.1743
H41.34571.34571.79922.17432.1743
H51.16972.62292.17432.17433.7855
H62.62291.16972.17432.17433.7855

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 57.252 B1 B2 H4 57.252
B1 B2 H6 174.740 B1 H3 B2 65.497
B1 H4 B2 65.497 B2 B1 H3 57.252
B2 B1 H4 57.252 B2 B1 H5 174.740
H3 B1 H4 83.901 H3 B1 H5 119.464
H3 B2 H4 83.901 H3 B2 H6 119.464
H4 B1 H5 119.464 H4 B2 H6 119.464
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/aug-cc-pCVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.160      
2 B -0.160      
3 H 0.174      
4 H 0.174      
5 H -0.014      
6 H -0.014      


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 0.799 0.799
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.075 0.000 0.000
y 0.000 -14.331 0.000
z 0.000 0.000 -16.606
Traceless
 xyz
x 1.394 0.000 0.000
y 0.000 1.009 0.000
z 0.000 0.000 -2.403
Polar
3z2-r2-4.807
x2-y20.257
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.314 0.000 0.000
y 0.000 6.084 0.000
z 0.000 0.000 4.739


<r2> (average value of r2) Å2
<r2> 24.241
(<r2>)1/2 4.923