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

using model chemistry: wB97X-D/LANL2DZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2D 1A1
Energy calculated at wB97X-D/LANL2DZ
 hartrees
Energy at 0K-52.007685
Energy at 298.15K-52.010172
HF Energy-52.007685
Nuclear repulsion energy 
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 wB97X-D/LANL2DZ
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 2579 2579 0.00      
2 A1 1180 1180 0.00      
3 A1 877 877 0.00      
4 B1 553 553 0.00      
5 B2 2549 2549 91.71      
6 B2 1124 1124 0.25      
7 E 2645 2645 104.53      
7 E 2645 2645 104.53      
8 E 993 993 19.75      
8 E 993 993 19.75      
9 E 435 435 0.42      
9 E 435 435 0.42      

Unscaled Zero Point Vibrational Energy (zpe) 8504.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8504.6 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 wB97X-D/LANL2DZ
ABC
4.01876 0.65618 0.65618

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/LANL2DZ

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.825
B2 0.000 0.000 -0.825
H3 0.000 1.020 1.462
H4 0.000 -1.020 1.462
H5 1.020 0.000 -1.462
H6 -1.020 0.000 -1.462

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.64981.20241.20242.50362.5036
B21.64982.50362.50361.20241.2024
H31.20242.50362.04013.25963.2596
H41.20242.50362.04013.25963.2596
H52.50361.20243.25963.25962.0401
H62.50361.20243.25963.25962.0401

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 121.969 B1 B2 H6 121.969
B2 B1 H3 121.969 B2 B1 H4 121.969
H3 B1 H4 116.063 H5 B2 H6 116.063
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.199      
2 B -0.199      
3 H 0.099      
4 H 0.099      
5 H 0.099      
6 H 0.099      


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 -14.415 0.000 0.000
y 0.000 -14.415 0.000
z 0.000 0.000 -15.856
Traceless
 xyz
x 0.720 0.000 0.000
y 0.000 0.720 0.000
z 0.000 0.000 -1.441
Polar
3z2-r2-2.882
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 2.834 0.000 0.000
y 0.000 2.834 0.000
z 0.000 0.000 4.672


<r2> (average value of r2) Å2
<r2> 28.814
(<r2>)1/2 5.368