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All results from a given calculation for B2H4 (Diborane(4) D2d)

using model chemistry: BLYP/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2D 1A1
Energy calculated at BLYP/aug-cc-pVTZ
 hartrees
Energy at 0K-52.012346
Energy at 298.15K-52.014724
HF Energy-52.012346
Nuclear repulsion energy22.399388
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 BLYP/aug-cc-pVTZ
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 2518 2510 0.00      
2 A1 1163 1159 0.00      
3 A1 865 862 0.00      
4 B1 579 578 0.00      
5 B2 2500 2491 51.50      
6 B2 1102 1098 0.19      
7 E 2555 2546 72.39      
7 E 2555 2546 72.39      
8 E 971 967 22.03      
8 E 971 967 22.03      
9 E 367 365 2.72      
9 E 367 365 2.72      

Unscaled Zero Point Vibrational Energy (zpe) 8255.5 cm-1
Scaled (by 0.9966) Zero Point Vibrational Energy (zpe) 8227.5 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 BLYP/aug-cc-pVTZ
ABC
4.06423 0.67164 0.67164

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

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.811
B2 0.000 0.000 -0.811
H3 0.000 1.014 1.455
H4 0.000 -1.014 1.455
H5 1.014 0.000 -1.455
H6 -1.014 0.000 -1.455

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.62241.20151.20152.48302.4830
B21.62242.48302.48301.20151.2015
H31.20152.48302.02873.24463.2446
H41.20152.48302.02873.24463.2446
H52.48301.20153.24463.24462.0287
H62.48301.20153.24463.24462.0287

picture of Diborane(4) D2d state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 B2 H5 122.409 B1 B2 H6 122.409
B2 B1 H3 122.409 B2 B1 H4 122.409
H3 B1 H4 115.181 H5 B2 H6 115.181
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B 0.052      
2 B 0.052      
3 H -0.026      
4 H -0.026      
5 H -0.026      
6 H -0.026      


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 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.866 0.000 0.000
y 0.000 -14.866 0.000
z 0.000 0.000 -16.762
Traceless
 xyz
x 0.948 0.000 0.000
y 0.000 0.948 0.000
z 0.000 0.000 -1.896
Polar
3z2-r2-3.792
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.369 0.000 0.000
y 0.000 4.369 0.000
z 0.000 0.000 6.546


<r2> (average value of r2) Å2
<r2> 28.846
(<r2>)1/2 5.371