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All results from a given calculation for B2H6 (Diborane)

using model chemistry: MP3/6-311+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 MP3/6-311+G(3df,2p)
 hartrees
Energy at 0K-53.122289
Energy at 298.15K-53.128234
HF Energy-52.833408
Nuclear repulsion energy32.197312
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 MP3/6-311+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 2648 2648 0.00      
2 Ag 2206 2206 0.00      
3 Ag 1221 1221 0.00      
4 Ag 828 828 0.00      
5 Au 863 863 0.00      
6 B1g 2728 2728 0.00      
7 B1g 950 950 0.00      
8 B1u 2031 2031 8.89      
9 B1u 1004 1004 25.68      
10 B2g 1915 1915 0.00      
11 B2g 906 906 0.00      
12 B2u 2742 2742 170.07      
13 B2u 983 983 0.89      
14 B2u 377 377 16.40      
15 B3g 1071 1071 0.00      
16 B3u 2633 2633 144.16      
17 B3u 1761 1761 497.91      
18 B3u 1209 1209 77.78      

Unscaled Zero Point Vibrational Energy (zpe) 14037.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 14037.0 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 MP3/6-311+G(3df,2p)
ABC
2.69299 0.61547 0.56539

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

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.878 0.000 0.000
B2 -0.878 0.000 0.000
H3 0.000 0.000 0.975
H4 0.000 0.000 -0.975
H5 1.451 1.038 0.000
H6 1.451 -1.038 0.000
H7 -1.451 1.038 0.000
H8 -1.451 -1.038 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.75641.31231.31231.18571.18572.55032.5503
B21.75641.31231.31232.55032.55031.18571.1857
H31.31231.31231.95042.03342.03342.03342.0334
H41.31231.31231.95042.03342.03342.03342.0334
H51.18572.55032.03342.03342.07592.90273.5686
H61.18572.55032.03342.03342.07593.56862.9027
H72.55031.18572.03342.03342.90273.56862.0759
H82.55031.18572.03342.03343.56862.90272.0759

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 84.008 B1 H4 B2 84.008
H3 B1 H4 95.992 H3 B1 H5 108.873
H3 B1 H6 108.873 H3 B2 H4 95.992
H3 B2 H7 108.873 H3 B2 H8 108.873
H4 B1 H5 108.873 H4 B1 H6 108.873
H4 B2 H7 108.873 H4 B2 H8 108.873
H5 B1 H6 122.186 H7 B2 H8 122.186
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability