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

using model chemistry: HSEh1PBE/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-51.956819
Energy at 298.15K-51.959226
HF Energy-51.956819
Nuclear repulsion energy22.289318
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/6-31+G**
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 2587 2470 0.00      
2 A1 1197 1142 0.00      
3 A1 873 833 0.00      
4 B1 559 534 0.00      
5 B2 2564 2448 74.56      
6 B2 1127 1076 2.07      
7 E 2636 2517 89.54      
7 E 2636 2517 89.54      
8 E 983 939 25.16      
8 E 983 939 25.16      
9 E 387 370 2.11      
9 E 387 370 2.11      

Unscaled Zero Point Vibrational Energy (zpe) 8460.1 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 8077.7 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/6-31+G**
ABC
4.03549 0.66259 0.66259

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31+G**

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 1.018 1.459
H4 0.000 -1.018 1.459
H5 1.018 0.000 -1.459
H6 -1.018 0.000 -1.459

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.63801.20251.20252.49532.4953
B21.63802.49532.49531.20251.2025
H31.20252.49532.03593.25413.2541
H41.20252.49532.03593.25413.2541
H52.49531.20253.25413.25412.0359
H62.49531.20253.25413.25412.0359

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 122.164 B1 B2 H6 122.164
B2 B1 H3 122.164 B2 B1 H4 122.164
H3 B1 H4 115.671 H5 B2 H6 115.671
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.016      
2 B -0.016      
3 H 0.008      
4 H 0.008      
5 H 0.008      
6 H 0.008      


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 -16.601
Traceless
 xyz
x 0.985 0.000 0.000
y 0.000 0.985 0.000
z 0.000 0.000 -1.970
Polar
3z2-r2-3.941
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 3.565 0.000 0.000
y 0.000 3.565 0.000
z 0.000 0.000 5.885


<r2> (average value of r2) Å2
<r2> 28.918
(<r2>)1/2 5.378