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

using model chemistry: LSDA/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 LSDA/aug-cc-pCVTZ
 hartrees
Energy at 0K-51.684324
Energy at 298.15K 
HF Energy-51.684324
Nuclear repulsion energy22.563194
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 LSDA/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 2509 2509 0.00      
2 A1 1126 1126 0.00      
3 A1 883 883 0.00      
4 B1 622 622 0.00      
5 B2 2489 2489 19.02      
6 B2 1032 1032 5.60      
7 E 2559 2559 36.06      
7 E 2559 2559 36.06      
8 E 920 920 17.80      
8 E 920 920 17.80      
9 E 268 268 0.19      
9 E 268 268 0.19      

Unscaled Zero Point Vibrational Energy (zpe) 8077.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8077.9 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 LSDA/aug-cc-pCVTZ
ABC
4.03987 0.69017 0.69017

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

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.795
B2 0.000 0.000 -0.795
H3 0.000 1.017 1.445
H4 0.000 -1.017 1.445
H5 1.017 0.000 -1.445
H6 -1.017 0.000 -1.445

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.59031.20721.20722.46032.4603
B21.59032.46032.46031.20721.2072
H31.20722.46032.03483.22833.2283
H41.20722.46032.03483.22833.2283
H52.46031.20723.22833.22832.0348
H62.46031.20723.22833.22832.0348

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 122.566 B1 B2 H6 122.566
B2 B1 H3 122.566 B2 B1 H4 122.566
H3 B1 H4 114.868 H5 B2 H6 114.868
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/aug-cc-pCVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.004      
2 B -0.004      
3 H 0.002      
4 H 0.002      
5 H 0.002      
6 H 0.002      


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 -14.773 0.000 0.000
y 0.000 -14.773 0.000
z 0.000 0.000 -16.127
Traceless
 xyz
x 0.677 0.000 0.000
y 0.000 0.677 0.000
z 0.000 0.000 -1.355
Polar
3z2-r2-2.710
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 4.443 0.000 0.000
y 0.000 4.443 0.000
z 0.000 0.000 6.823


<r2> (average value of r2) Å2
<r2> 28.324
(<r2>)1/2 5.322