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

using model chemistry: LSDA/STO-3G

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/STO-3G
 hartrees
Energy at 0K-51.035028
Energy at 298.15K-51.037473
HF Energy-51.035028
Nuclear repulsion energy22.852268
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/STO-3G
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 2914 2610 0.00      
2 A1 1315 1177 0.00      
3 A1 996 892 0.00      
4 B1 660 591 0.00      
5 B2 2890 2588 22.11      
6 B2 1252 1121 0.27      
7 E 3018 2703 1.30      
7 E 3018 2703 1.30      
8 E 1039 930 41.87      
8 E 1039 930 41.87      
9 E 445 398 0.21      
9 E 445 398 0.21      

Unscaled Zero Point Vibrational Energy (zpe) 9514.4 cm-1
Scaled (by 0.8955) Zero Point Vibrational Energy (zpe) 8520.1 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 LSDA/STO-3G
ABC
4.18620 0.70206 0.70206

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/STO-3G

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.793
B2 0.000 0.000 -0.793
H3 0.000 0.999 1.423
H4 0.000 -0.999 1.423
H5 0.999 0.000 -1.423
H6 -0.999 0.000 -1.423

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.58551.18141.18142.43052.4305
B21.58552.43052.43051.18141.1814
H31.18142.43051.99893.17723.1772
H41.18142.43051.99893.17723.1772
H52.43051.18143.17723.17721.9989
H62.43051.18143.17723.17721.9989

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 122.224 B1 B2 H6 122.224
B2 B1 H3 122.224 B2 B1 H4 122.224
H3 B1 H4 115.553 H5 B2 H6 115.553
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.002      
2 B -0.002      
3 H 0.001      
4 H 0.001      
5 H 0.001      
6 H 0.001      


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 -12.700 0.000 0.000
y 0.000 -12.700 0.000
z 0.000 0.000 -13.940
Traceless
 xyz
x 0.620 0.000 0.000
y 0.000 0.620 0.000
z 0.000 0.000 -1.240
Polar
3z2-r2-2.481
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 1.574 0.000 0.000
y 0.000 1.574 0.000
z 0.000 0.000 3.052


<r2> (average value of r2) Å2
<r2> 26.567
(<r2>)1/2 5.154