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

using model chemistry: B2PLYP/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 B2PLYP/aug-cc-pCVTZ
 hartrees
Energy at 0K-51.986851
Energy at 298.15K 
HF Energy-51.908046
Nuclear repulsion energy24.907494
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 B2PLYP/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 2850 2850 0.07      
2 A1 2125 2125 17.03      
3 A1 1362 1362 3.35      
4 A1 1121 1121 1.88      
5 A1 737 737 4.40      
6 A2 1304 1304 0.00      
7 A2 675 675 0.00      
8 B1 2124 2124 44.10      
9 B1 803 803 1.93      
10 B2 2812 2812 35.91      
11 B2 1382 1382 199.82      
12 B2 564 564 31.49      

Unscaled Zero Point Vibrational Energy (zpe) 8929.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8929.1 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 B2PLYP/aug-cc-pCVTZ
ABC
6.77972 0.85150 0.82003

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/aug-cc-pCVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.729 -0.114
B2 0.000 -0.729 -0.114
H3 0.897 0.000 0.568
H4 -0.897 0.000 0.568
H5 0.000 1.893 -0.000
H6 0.000 -1.893 -0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.45871.34221.34221.16902.6246
B21.45871.34221.34222.62461.1690
H31.34221.34221.79482.17042.1704
H41.34221.34221.79482.17042.1704
H51.16902.62462.17042.17043.7856
H62.62461.16902.17042.17043.7856

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 57.085 B1 B2 H4 57.085
B1 B2 H6 174.431 B1 H3 B2 65.830
B1 H4 B2 65.830 B2 B1 H3 57.085
B2 B1 H4 57.085 B2 B1 H5 174.431
H3 B1 H4 83.915 H3 B1 H5 119.443
H3 B2 H4 83.915 H3 B2 H6 119.443
H4 B1 H5 119.443 H4 B2 H6 119.443
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/aug-cc-pCVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.131      
2 B -0.131      
3 H 0.174      
4 H 0.174      
5 H -0.043      
6 H -0.043      


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 0.805 0.805
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.078 0.000 0.000
y 0.000 -14.324 0.000
z 0.000 0.000 -16.657
Traceless
 xyz
x 1.412 0.000 0.000
y 0.000 1.044 0.000
z 0.000 0.000 -2.456
Polar
3z2-r2-4.913
x2-y20.245
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.265 0.000 0.000
y 0.000 6.025 0.001
z 0.000 0.001 4.681


<r2> (average value of r2) Å2
<r2> 24.250
(<r2>)1/2 4.924