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

using model chemistry: B97D3/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2D 1A1
Energy calculated at B97D3/6-311+G(3df,2p)
 hartrees
Energy at 0K-52.022872
Energy at 298.15K-52.025239
HF Energy-52.022872
Nuclear repulsion energy22.309795
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 B97D3/6-311+G(3df,2p)
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 2505 2473 0.00      
2 A1 1162 1147 0.00      
3 A1 857 846 0.00      
4 B1 568 561 0.00      
5 B2 2483 2451 62.28      
6 B2 1099 1085 0.88      
7 E 2544 2511 82.39      
7 E 2544 2511 82.39      
8 E 968 955 22.48      
8 E 968 955 22.48      
9 E 369 364 3.19      
9 E 369 364 3.19      

Unscaled Zero Point Vibrational Energy (zpe) 8216.7 cm-1
Scaled (by 0.987) Zero Point Vibrational Energy (zpe) 8109.9 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 B97D3/6-311+G(3df,2p)
ABC
4.03599 0.66534 0.66534

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-311+G(3df,2p)

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.816
B2 0.000 0.000 -0.816
H3 0.000 1.018 1.460
H4 0.000 -1.018 1.460
H5 1.018 0.000 -1.460
H6 -1.018 0.000 -1.460

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.63181.20441.20442.49302.4930
B21.63182.49302.49301.20441.2044
H31.20442.49302.03583.25523.2552
H41.20442.49302.03583.25523.2552
H52.49301.20443.25523.25522.0358
H62.49301.20443.25523.25522.0358

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 121.909 B1 B2 H6 121.909
B2 B1 H3 121.909 B2 B1 H4 121.909
H3 B1 H4 116.182 H5 B2 H6 116.182
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.167      
2 B -0.167      
3 H 0.083      
4 H 0.083      
5 H 0.083      
6 H 0.083      


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 -14.771 0.000 0.000
y 0.000 -14.771 0.000
z 0.000 0.000 -16.648
Traceless
 xyz
x 0.939 0.000 0.000
y 0.000 0.939 0.000
z 0.000 0.000 -1.877
Polar
3z2-r2-3.755
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 4.315 0.000 0.000
y 0.000 4.315 0.000
z 0.000 0.000 6.443


<r2> (average value of r2) Å2
<r2> 28.942
(<r2>)1/2 5.380