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All results from a given calculation for B2H6 (Diborane)

using model chemistry: MP3/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-53.129985
Energy at 298.15K-53.135940
HF Energy-52.834982
Nuclear repulsion energy32.189954
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/cc-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 Ag 2657 2510 0.00      
2 Ag 2206 2084 0.00      
3 Ag 1227 1159 0.00      
4 Ag 826 781 0.00      
5 Au 866 818 0.00      
6 B1g 2737 2586 0.00      
7 B1g 955 902 0.00      
8 B1u 2033 1921 10.43      
9 B1u 1009 953 25.55      
10 B2g 1919 1813 0.00      
11 B2g 911 861 0.00      
12 B2u 2751 2598 169.30      
13 B2u 990 935 1.16      
14 B2u 376 355 16.04      
15 B3g 1080 1020 0.00      
16 B3u 2641 2495 145.12      
17 B3u 1764 1667 503.54      
18 B3u 1213 1146 79.27      

Unscaled Zero Point Vibrational Energy (zpe) 14080.1 cm-1
Scaled (by 0.9447) Zero Point Vibrational Energy (zpe) 13301.4 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 MP3/cc-pVTZ
ABC
2.69439 0.61471 0.56470

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/cc-pVTZ

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 0.974
H4 0.000 0.000 -0.974
H5 1.452 1.038 0.000
H6 1.452 -1.038 0.000
H7 -1.452 1.038 0.000
H8 -1.452 -1.038 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.75801.31231.31231.18551.18552.55152.5515
B21.75801.31231.31232.55152.55151.18551.1855
H31.31231.31231.94892.03342.03342.03342.0334
H41.31231.31231.94892.03342.03342.03342.0334
H51.18552.55152.03342.03342.07582.90373.5694
H61.18552.55152.03342.03342.07583.56942.9037
H72.55151.18552.03342.03342.90373.56942.0758
H82.55151.18552.03342.03343.56942.90372.0758

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 84.104 B1 H4 B2 84.104
H3 B1 H4 95.896 H3 B1 H5 108.885
H3 B1 H6 108.885 H3 B2 H4 95.896
H3 B2 H7 108.885 H3 B2 H8 108.885
H4 B1 H5 108.885 H4 B1 H6 108.885
H4 B2 H7 108.885 H4 B2 H8 108.885
H5 B1 H6 122.207 H7 B2 H8 122.207
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability