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

using model chemistry: wB97X-D/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-52.036997
Energy at 298.15K-52.039450
HF Energy-52.036997
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/Def2TZVPP
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 2563 2448 0.00      
2 A1 1205 1151 0.00      
3 A1 861 823 0.00      
4 B1 551 527 0.00      
5 B2 2543 2429 71.48      
6 B2 1142 1091 3.97      
7 E 2617 2499 83.72      
7 E 2617 2499 83.72      
8 E 990 946 27.15      
8 E 990 946 27.15      
9 E 410 392 3.98      
9 E 410 392 3.98      

Unscaled Zero Point Vibrational Energy (zpe) 8449.4 cm-1
Scaled (by 0.9552) Zero Point Vibrational Energy (zpe) 8070.8 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/Def2TZVPP
ABC
4.04680 0.66505 0.66505

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/Def2TZVPP

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.819
B2 0.000 0.000 -0.819
H3 0.000 1.017 1.453
H4 0.000 -1.017 1.453
H5 1.017 0.000 -1.453
H6 -1.017 0.000 -1.453

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.63721.19821.19822.48862.4886
B21.63722.48862.48861.19821.1982
H31.19822.48862.03313.24213.2421
H41.19822.48862.03313.24213.2421
H52.48861.19823.24213.24212.0331
H62.48861.19823.24213.24212.0331

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 121.967 B1 B2 H6 121.967
B2 B1 H3 121.967 B2 B1 H4 121.967
H3 B1 H4 116.067 H5 B2 H6 116.067
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.102      
2 B -0.102      
3 H 0.051      
4 H 0.051      
5 H 0.051      
6 H 0.051      


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 -14.600 0.000 0.000
y 0.000 -14.600 0.000
z 0.000 0.000 -16.638
Traceless
 xyz
x 1.019 0.000 0.000
y 0.000 1.019 0.000
z 0.000 0.000 -2.037
Polar
3z2-r2-4.075
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 3.892 0.000 0.000
y 0.000 3.892 0.000
z 0.000 0.000 5.737


<r2> (average value of r2) Å2
<r2> 28.822
(<r2>)1/2 5.369