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All results from a given calculation for B2H6 (Diborane)

using model chemistry: CISD/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at CISD/Def2TZVPP
 hartrees
Energy at 0K-53.111477
Energy at 298.15K-53.117455
HF Energy-52.836093
Nuclear repulsion energy32.227911
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 CISD/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 Ag 2677 2677 0.00      
2 Ag 2229 2229 0.00      
3 Ag 1244 1244 0.00      
4 Ag 831 831 0.00      
5 Au 873 873 0.00      
6 B1g 2752 2752 0.00      
7 B1g 964 964 0.00      
8 B1u 2042 2042 15.10      
9 B1u 1022 1022 26.64      
10 B2g 1925 1925 0.00      
11 B2g 915 915 0.00      
12 B2u 2767 2767 184.79      
13 B2u 1019 1019 1.45      
14 B2u 387 387 16.02      
15 B3g 1101 1101 0.00      
16 B3u 2660 2660 154.42      
17 B3u 1785 1785 541.74      
18 B3u 1231 1231 85.06      

Unscaled Zero Point Vibrational Energy (zpe) 14212.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 14212.3 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 CISD/Def2TZVPP
ABC
2.70760 0.61525 0.56530

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

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.879 0.000 0.000
B2 -0.879 0.000 0.000
H3 0.000 0.000 0.972
H4 0.000 0.000 -0.972
H5 1.452 1.036 0.000
H6 1.452 -1.036 0.000
H7 -1.452 1.036 0.000
H8 -1.452 -1.036 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.75731.30991.30991.18371.18372.55032.5503
B21.75731.30991.30992.55032.55031.18371.1837
H31.30991.30991.94312.03092.03092.03092.0309
H41.30991.30991.94312.03092.03092.03092.0309
H51.18372.55032.03092.03092.07122.90383.5668
H61.18372.55032.03092.03092.07123.56682.9038
H72.55031.18372.03092.03092.90383.56682.0712
H82.55031.18372.03092.03093.56682.90382.0712

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 84.251 B1 H4 B2 84.251
H3 B1 H4 95.749 H3 B1 H5 108.956
H3 B1 H6 108.956 H3 B2 H4 95.749
H3 B2 H7 108.956 H3 B2 H8 108.956
H4 B1 H5 108.956 H4 B1 H6 108.956
H4 B2 H7 108.956 H4 B2 H8 108.956
H5 B1 H6 122.067 H7 B2 H8 122.067
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability