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

using model chemistry: BLYP/aug-cc-pCVTZ

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-pCVTZ
 hartrees
Energy at 0K-52.014435
Energy at 298.15K 
HF Energy-52.014435
Nuclear repulsion energy22.398799
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-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 2516 2516 0.00      
2 A1 1162 1162 0.00      
3 A1 864 864 0.00      
4 B1 579 579 0.00      
5 B2 2496 2496 51.47      
6 B2 1101 1101 0.16      
7 E 2551 2551 72.56      
7 E 2551 2551 72.56      
8 E 970 970 22.06      
8 E 970 970 22.06      
9 E 366 366 2.68      
9 E 366 366 2.68      

Unscaled Zero Point Vibrational Energy (zpe) 8246.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8246.4 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 BLYP/aug-cc-pCVTZ
ABC
4.06311 0.67168 0.67168

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

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
B11.62231.20161.20162.48302.4830
B21.62232.48302.48301.20161.2016
H31.20162.48302.02903.24473.2447
H41.20162.48302.02903.24473.2447
H52.48301.20163.24473.24472.0290
H62.48301.20163.24473.24472.0290

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 115.182 H5 B2 H6 115.182
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/aug-cc-pCVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.066      
2 B -0.066      
3 H 0.033      
4 H 0.033      
5 H 0.033      
6 H 0.033      


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 -14.861 0.000 0.000
y 0.000 -14.861 0.000
z 0.000 0.000 -16.754
Traceless
 xyz
x 0.946 0.000 0.000
y 0.000 0.946 0.000
z 0.000 0.000 -1.892
Polar
3z2-r2-3.785
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 4.368 0.000 0.000
y 0.000 4.368 0.000
z 0.000 0.000 6.545


<r2> (average value of r2) Å2
<r2> 28.842
(<r2>)1/2 5.370