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

using model chemistry: HSEh1PBE/cc-pVDZ

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-pVDZ
 hartrees
Energy at 0K-51.951568
Energy at 298.15K-51.953932
HF Energy-51.951568
Nuclear repulsion energy22.192933
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-pVDZ
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 2575 2477 0.00      
2 A1 1176 1131 0.00      
3 A1 872 839 0.00      
4 B1 558 537 0.00      
5 B2 2552 2455 64.70      
6 B2 1100 1058 1.13      
7 E 2631 2531 78.90      
7 E 2631 2531 78.90      
8 E 973 936 22.93      
8 E 973 936 22.93      
9 E 367 353 1.53      
9 E 367 353 1.53      

Unscaled Zero Point Vibrational Energy (zpe) 8386.8 cm-1
Scaled (by 0.9619) Zero Point Vibrational Energy (zpe) 8067.3 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-pVDZ
ABC
3.96214 0.65999 0.65999

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

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.819
B2 0.000 0.000 -0.819
H3 0.000 1.027 1.463
H4 0.000 -1.027 1.463
H5 1.027 0.000 -1.463
H6 -1.027 0.000 -1.463

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.63881.21241.21242.50322.5032
B21.63882.50322.50321.21241.2124
H31.21242.50322.05473.26733.2673
H41.21242.50322.05473.26733.2673
H52.50321.21243.26733.26732.0547
H62.50321.21243.26733.26732.0547

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 122.076 B1 B2 H6 122.076
B2 B1 H3 122.076 B2 B1 H4 122.076
H3 B1 H4 115.848 H5 B2 H6 115.848
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.014      
2 B -0.014      
3 H 0.007      
4 H 0.007      
5 H 0.007      
6 H 0.007      


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 -14.502 0.000 0.000
y 0.000 -14.502 0.000
z 0.000 0.000 -16.293
Traceless
 xyz
x 0.895 0.000 0.000
y 0.000 0.895 0.000
z 0.000 0.000 -1.791
Polar
3z2-r2-3.582
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 3.644 0.000 0.000
y 0.000 3.644 0.000
z 0.000 0.000 5.795


<r2> (average value of r2) Å2
<r2> 28.931
(<r2>)1/2 5.379