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

using model chemistry: MP3=FULL/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 MP3=FULL/6-311+G(3df,2p)
 hartrees
Energy at 0K-51.922358
Energy at 298.15K-51.924831
HF Energy-51.650171
Nuclear repulsion energy22.320403
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 MP3=FULL/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 2614 2614 0.00      
2 A1 1230 1230 0.00      
3 A1 865 865 0.00      
4 B1 525 525 0.00      
5 B2 2595 2595 76.59      
6 B2 1170 1170 12.41      
7 E 2670 2670 88.53      
7 E 2670 2670 88.53      
8 E 1013 1013 26.92      
8 E 1013 1013 26.92      
9 E 420 420 6.62      
9 E 420 420 6.62      

Unscaled Zero Point Vibrational Energy (zpe) 8601.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8601.8 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 MP3=FULL/6-311+G(3df,2p)
ABC
4.06843 0.66031 0.66031

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-311+G(3df,2p)

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.824
B2 0.000 0.000 -0.824
H3 0.000 1.014 1.453
H4 0.000 -1.014 1.453
H5 1.014 0.000 -1.453
H6 -1.014 0.000 -1.453

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.64791.19311.19312.49242.4924
B21.64792.49242.49241.19311.1931
H31.19312.49242.02763.24033.2403
H41.19312.49242.02763.24033.2403
H52.49241.19313.24033.24032.0276
H62.49241.19313.24033.24032.0276

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 121.816 B1 B2 H6 121.816
B2 B1 H3 121.816 B2 B1 H4 121.816
H3 B1 H4 116.367 H5 B2 H6 116.367
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability