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All results from a given calculation for B2H6 (Diborane)

using model chemistry: MP4/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 MP4/cc-pVTZ
 hartrees
Energy at 0K-53.141568
Energy at 298.15K-53.147502
HF Energy-52.835010
Nuclear repulsion energy32.122695
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 MP4/cc-pVTZ
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 2634 2553 0.00      
2 Ag 2189 2121 0.00      
3 Ag 1216 1179 0.00      
4 Ag 817 792 0.00      
5 Au 860 834 0.00      
6 B1g 2715 2631 0.00      
7 B1g 948 919 0.00      
8 B1u 2015 1953 0.00      
9 B1u 1001 970 0.00      
10 B2g 1904 1845 0.00      
11 B2g 904 876 0.00      
12 B2u 2728 2644 0.00      
13 B2u 981 951 0.00      
14 B2u 370 359 0.00      
15 B3g 1068 1035 0.00      
16 B3u 2619 2538 0.00      
17 B3u 1752 1698 0.00      
18 B3u 1203 1166 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 13961.8 cm-1
Scaled (by 0.9692) Zero Point Vibrational Energy (zpe) 13531.8 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 MP4/cc-pVTZ
ABC
2.68325 0.61208 0.56221

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/cc-pVTZ

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 0.976
H4 0.000 0.000 -0.976
H5 1.454 1.040 0.000
H6 1.454 -1.040 0.000
H7 -1.454 1.040 0.000
H8 -1.454 -1.040 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.76231.31491.31491.18771.18772.55672.5567
B21.76231.31491.31492.55672.55671.18771.1877
H31.31491.31491.95182.03712.03712.03712.0371
H41.31491.31491.95182.03712.03712.03712.0371
H51.18772.55672.03712.03712.08062.90863.5762
H61.18772.55672.03712.03712.08063.57622.9086
H72.55671.18772.03712.03712.90863.57622.0806
H82.55671.18772.03712.03713.57622.90862.0806

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 84.157 B1 H4 B2 84.157
H3 B1 H4 95.843 H3 B1 H5 108.868
H3 B1 H6 108.868 H3 B2 H4 95.843
H3 B2 H7 108.868 H3 B2 H8 108.868
H4 B1 H5 108.868 H4 B1 H6 108.868
H4 B2 H7 108.868 H4 B2 H8 108.868
H5 B1 H6 122.295 H7 B2 H8 122.295
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability