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

using model chemistry: HSEh1PBE/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 HSEh1PBE/cc-pVTZ
 hartrees
Energy at 0K-51.968793
Energy at 298.15K-51.971192
HF Energy-51.968793
Nuclear repulsion energy22.392392
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 HSEh1PBE/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 2570 2470 0.00      
2 A1 1187 1141 0.00      
3 A1 871 837 0.00      
4 B1 571 548 0.00      
5 B2 2549 2450 55.79      
6 B2 1121 1077 1.09      
7 E 2619 2517 70.80      
7 E 2619 2517 70.80      
8 E 981 943 24.78      
8 E 981 943 24.78      
9 E 375 360 2.67      
9 E 375 360 2.67      

Unscaled Zero Point Vibrational Energy (zpe) 8409.2 cm-1
Scaled (by 0.9611) Zero Point Vibrational Energy (zpe) 8082.0 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 HSEh1PBE/cc-pVTZ
ABC
4.05267 0.67039 0.67039

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/cc-pVTZ

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.814
B2 0.000 0.000 -0.814
H3 0.000 1.016 1.451
H4 0.000 -1.016 1.451
H5 1.016 0.000 -1.451
H6 -1.016 0.000 -1.451

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.62721.19941.19942.48232.4823
B21.62722.48232.48231.19941.1994
H31.19942.48232.03163.23873.2387
H41.19942.48232.03163.23873.2387
H52.48231.19943.23873.23872.0316
H62.48231.19943.23873.23872.0316

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 122.123 B1 B2 H6 122.123
B2 B1 H3 122.123 B2 B1 H4 122.123
H3 B1 H4 115.755 H5 B2 H6 115.755
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.100      
2 B -0.100      
3 H 0.050      
4 H 0.050      
5 H 0.050      
6 H 0.050      


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 -14.630 0.000 0.000
y 0.000 -14.630 0.000
z 0.000 0.000 -16.533
Traceless
 xyz
x 0.952 0.000 0.000
y 0.000 0.952 0.000
z 0.000 0.000 -1.903
Polar
3z2-r2-3.806
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 3.925 0.000 0.000
y 0.000 3.925 0.000
z 0.000 0.000 5.977


<r2> (average value of r2) Å2
<r2> 28.706
(<r2>)1/2 5.358