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

using model chemistry: M06-2X/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 M06-2X/6-31+G**
 hartrees
Energy at 0K-52.004175
Energy at 298.15K-52.006601
HF Energy-52.004175
Nuclear repulsion energy22.291509
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 M06-2X/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 2639 2512 0.00      
2 A1 1230 1171 0.00      
3 A1 876 835 0.00      
4 B1 518 493 0.00      
5 B2 2617 2491 86.72      
6 B2 1160 1105 9.54      
7 E 2686 2558 101.29      
7 E 2686 2558 101.29      
8 E 1000 953 25.76      
8 E 1000 953 25.76      
9 E 404 385 5.36      
9 E 404 385 5.36      

Unscaled Zero Point Vibrational Energy (zpe) 8610.0 cm-1
Scaled (by 0.9522) Zero Point Vibrational Energy (zpe) 8198.5 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 M06-2X/6-31+G**
ABC
4.05100 0.65978 0.65978

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/6-31+G**

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.823
B2 0.000 0.000 -0.823
H3 0.000 1.016 1.456
H4 0.000 -1.016 1.456
H5 1.016 0.000 -1.456
H6 -1.016 0.000 -1.456

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.64671.19681.19682.49532.4953
B21.64672.49532.49531.19681.1968
H31.19682.49532.03203.24683.2468
H41.19682.49532.03203.24683.2468
H52.49531.19683.24683.24682.0320
H62.49531.19683.24683.24682.0320

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 121.902 B1 B2 H6 121.902
B2 B1 H3 121.902 B2 B1 H4 121.902
H3 B1 H4 116.195 H5 B2 H6 116.195
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B 0.010      
2 B 0.010      
3 H -0.005      
4 H -0.005      
5 H -0.005      
6 H -0.005      


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 -14.697 0.000 0.000
y 0.000 -14.697 0.000
z 0.000 0.000 -16.850
Traceless
 xyz
x 1.076 0.000 0.000
y 0.000 1.076 0.000
z 0.000 0.000 -2.153
Polar
3z2-r2-4.306
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 3.491 0.000 0.000
y 0.000 3.491 0.000
z 0.000 0.000 5.571


<r2> (average value of r2) Å2
<r2> 29.013
(<r2>)1/2 5.386