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

using model chemistry: wB97X-D/CEP-31G

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/CEP-31G
 hartrees
Energy at 0K-7.906894
Energy at 298.15K-7.909374
HF Energy-7.906894
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/CEP-31G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 2556 2556 0.00      
2 A1 1203 1203 0.00      
3 A1 877 877 0.00      
4 B1 525 525 0.00      
5 B2 2526 2526 127.80      
6 B2 1121 1121 4.05      
7 E 2599 2599 150.09      
7 E 2599 2599 150.09      
8 E 989 989 19.53      
8 E 989 989 19.53      
9 E 441 441 0.05      
9 E 441 441 0.05      

Unscaled Zero Point Vibrational Energy (zpe) 8431.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8431.6 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/CEP-31G
ABC
3.96049 0.63218 0.63218

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/CEP-31G

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.843
B2 0.000 0.000 -0.843
H3 0.000 1.028 1.485
H4 0.000 -1.028 1.485
H5 1.028 0.000 -1.485
H6 -1.028 0.000 -1.485

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.68571.21191.21192.54502.5450
B21.68572.54502.54501.21191.2119
H31.21192.54502.05513.30723.3072
H41.21192.54502.05513.30723.3072
H52.54501.21193.30723.30722.0551
H62.54501.21193.30723.30722.0551

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 122.019 B1 B2 H6 122.019
B2 B1 H3 122.019 B2 B1 H4 122.019
H3 B1 H4 115.962 H5 B2 H6 115.962
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.180      
2 B -0.180      
3 H 0.090      
4 H 0.090      
5 H 0.090      
6 H 0.090      


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 -13.915 0.000 0.000
y 0.000 -13.915 0.000
z 0.000 0.000 -16.120
Traceless
 xyz
x 1.102 0.000 0.000
y 0.000 1.102 0.000
z 0.000 0.000 -2.205
Polar
3z2-r2-4.409
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 2.529 0.000 0.000
y 0.000 2.529 0.000
z 0.000 0.000 5.035


<r2> (average value of r2) Å2
<r2> 26.462
(<r2>)1/2 5.144