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All results from a given calculation for B2H6 (Diborane)

using model chemistry: QCISD(T)=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 D2H 1Ag
Energy calculated at QCISD(T)=FULL/6-311+G(3df,2p)
 hartrees
Energy at 0K-53.179837
Energy at 298.15K-53.185758
HF Energy-52.833369
Nuclear repulsion energy32.201546
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 QCISD(T)=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 Ag 2630 2630 0.00      
2 Ag 2198 2198 0.00      
3 Ag 1206 1206 0.00      
4 Ag 824 824 0.00      
5 Au 856 856 0.00      
6 B1g 2708 2708 0.00      
7 B1g 938 938 0.00      
8 B1u 2026 2026 0.00      
9 B1u 996 996 0.00      
10 B2g 1904 1904 0.00      
11 B2g 900 900 0.00      
12 B2u 2722 2722 0.00      
13 B2u 971 971 0.00      
14 B2u 369 369 0.00      
15 B3g 1057 1057 0.00      
16 B3u 2615 2615 0.00      
17 B3u 1757 1757 0.00      
18 B3u 1196 1196 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 13935.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 13935.4 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 QCISD(T)=FULL/6-311+G(3df,2p)
ABC
2.68992 0.61629 0.56601

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

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.877 0.000 0.000
B2 -0.877 0.000 0.000
H3 0.000 0.000 0.976
H4 0.000 0.000 -0.976
H5 1.451 1.039 0.000
H6 1.451 -1.039 0.000
H7 -1.451 1.039 0.000
H8 -1.451 -1.039 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.75451.31201.31201.18671.18672.54962.5496
B21.75451.31201.31202.54962.54961.18671.1867
H31.31201.31201.95132.03392.03392.03392.0339
H41.31201.31201.95132.03392.03392.03392.0339
H51.18672.54962.03392.03392.07722.90263.5692
H61.18672.54962.03392.03392.07723.56922.9026
H72.54961.18672.03392.03392.90263.56922.0772
H82.54961.18672.03392.03393.56922.90262.0772

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 83.920 B1 H4 B2 83.920
H3 B1 H4 96.080 H3 B1 H5 108.871
H3 B1 H6 108.871 H3 B2 H4 96.080
H3 B2 H7 108.871 H3 B2 H8 108.871
H4 B1 H5 108.871 H4 B1 H6 108.871
H4 B2 H7 108.871 H4 B2 H8 108.871
H5 B1 H6 122.138 H7 B2 H8 122.138
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability