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All results from a given calculation for B2H6 (Diborane)

using model chemistry: QCISD(TQ)/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(TQ)/6-311+G(3df,2p)
 hartrees
Energy at 0K-53.136483
Energy at 298.15K-53.142402
HF Energy-52.833415
Nuclear repulsion energy32.122961
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(TQ)/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 2618 2618 0.00      
2 Ag 2185 2185 0.00      
3 Ag 1207 1207 0.00      
4 Ag 816 816 0.00      
5 Au 853 853 0.00      
6 B1g 2696 2696 0.00      
7 B1g 940 940 0.00      
8 B1u 2011 2011 0.00      
9 B1u 994 994 0.00      
10 B2g 1891 1891 0.00      
11 B2g 893 893 0.00      
12 B2u 2710 2710 0.00      
13 B2u 975 975 0.00      
14 B2u 371 371 0.00      
15 B3g 1058 1058 0.00      
16 B3u 2603 2603 0.00      
17 B3u 1749 1749 0.00      
18 B3u 1196 1196 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 13883.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 13883.2 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(TQ)/6-311+G(3df,2p)
ABC
2.68129 0.61235 0.56245

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

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.881 0.000 0.000
B2 -0.881 0.000 0.000
H3 0.000 0.000 0.977
H4 0.000 0.000 -0.977
H5 1.455 1.041 0.000
H6 1.455 -1.041 0.000
H7 -1.455 1.041 0.000
H8 -1.455 -1.041 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.76131.31501.31501.18841.18842.55672.5567
B21.76131.31501.31502.55672.55671.18841.1884
H31.31501.31501.95312.03782.03782.03782.0378
H41.31501.31501.95312.03782.03782.03782.0378
H51.18842.55672.03782.03782.08112.90943.5771
H61.18842.55672.03782.03782.08113.57712.9094
H72.55671.18842.03782.03782.90943.57712.0811
H82.55671.18842.03782.03783.57712.90942.0811

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 84.087 B1 H4 B2 84.087
H3 B1 H4 95.913 H3 B1 H5 108.875
H3 B1 H6 108.875 H3 B2 H4 95.913
H3 B2 H7 108.875 H3 B2 H8 108.875
H4 B1 H5 108.875 H4 B1 H6 108.875
H4 B2 H7 108.875 H4 B2 H8 108.875
H5 B1 H6 122.230 H7 B2 H8 122.230
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability