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

using model chemistry: M06-2X/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2D 1A1
Energy calculated at M06-2X/6-31G**
 hartrees
Energy at 0K-52.001799
Energy at 298.15K-52.004226
HF Energy-52.001799
Nuclear repulsion energy22.297584
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/6-31G**
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 2650 2519 0.00      
2 A1 1238 1177 0.00      
3 A1 879 835 0.00      
4 B1 515 490 0.00      
5 B2 2629 2498 74.55      
6 B2 1169 1111 10.21      
7 E 2701 2567 82.42      
7 E 2701 2567 82.42      
8 E 1005 955 28.03      
8 E 1005 955 28.03      
9 E 406 386 4.31      
9 E 406 386 4.31      

Unscaled Zero Point Vibrational Energy (zpe) 8650.7 cm-1
Scaled (by 0.9504) Zero Point Vibrational Energy (zpe) 8221.6 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 M06-2X/6-31G**
ABC
4.05910 0.65972 0.65972

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

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 1.015 1.456
H4 0.000 -1.015 1.456
H5 1.015 0.000 -1.456
H6 -1.015 0.000 -1.456

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.64691.19591.19592.49522.4952
B21.64692.49522.49521.19591.1959
H31.19592.49522.03003.24643.2464
H41.19592.49522.03003.24643.2464
H52.49521.19593.24643.24642.0300
H62.49521.19593.24643.24642.0300

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 121.927 B1 B2 H6 121.927
B2 B1 H3 121.927 B2 B1 H4 121.927
H3 B1 H4 116.146 H5 B2 H6 116.146
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B 0.054      
2 B 0.054      
3 H -0.027      
4 H -0.027      
5 H -0.027      
6 H -0.027      


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 -14.264 0.000 0.000
y 0.000 -14.264 0.000
z 0.000 0.000 -16.305
Traceless
 xyz
x 1.020 0.000 0.000
y 0.000 1.020 0.000
z 0.000 0.000 -2.041
Polar
3z2-r2-4.082
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 3.169 0.000 0.000
y 0.000 3.169 0.000
z 0.000 0.000 5.027


<r2> (average value of r2) Å2
<r2> 28.715
(<r2>)1/2 5.359