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All results from a given calculation for B2H6 (Diborane)

using model chemistry: MP2/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at MP2/cc-pVDZ
 hartrees
Energy at 0K-53.031669
Energy at 298.15K-53.037577
HF Energy-52.815868
Nuclear repulsion energy31.739602
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 MP2/cc-pVDZ
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 2664 2538 0.00 252.68 0.11 0.21
2 Ag 2212 2107 0.00 93.25 0.07 0.13
3 Ag 1216 1158 0.00 8.90 0.75 0.85
4 Ag 818 780 0.00 19.86 0.20 0.34
5 Au 846 806 0.00 0.00 0.00 0.00
6 B1g 2752 2621 0.00 104.26 0.75 0.86
7 B1g 939 894 0.00 1.38 0.75 0.86
8 B1u 2038 1941 14.20 0.00 0.00 0.00
9 B1u 1002 954 20.26 0.00 0.00 0.00
10 B2g 1913 1822 0.00 6.40 0.75 0.86
11 B2g 890 848 0.00 4.10 0.75 0.86
12 B2u 2765 2633 177.60 0.00 0.75 0.86
13 B2u 970 924 1.18 0.00 0.00 0.00
14 B2u 361 344 14.65 0.00 0.00 0.00
15 B3g 1059 1009 0.00 32.94 0.75 0.86
16 B3u 2647 2522 155.72 0.00 0.00 0.00
17 B3u 1756 1673 537.96 0.00 0.00 0.00
18 B3u 1201 1144 84.09 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 14024.6 cm-1
Scaled (by 0.9525) Zero Point Vibrational Energy (zpe) 13358.5 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 MP2/cc-pVDZ
ABC
2.62298 0.59659 0.54776

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/cc-pVDZ

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.893 0.000 0.000
B2 -0.893 0.000 0.000
H3 0.000 0.000 0.985
H4 0.000 0.000 -0.985
H5 1.471 1.053 0.000
H6 1.471 -1.053 0.000
H7 -1.471 1.053 0.000
H8 -1.471 -1.053 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.78691.32961.32961.20141.20142.58872.5887
B21.78691.32961.32962.58872.58871.20141.2014
H31.32961.32961.96922.06002.06002.06002.0600
H41.32961.32961.96922.06002.06002.06002.0600
H51.20142.58872.06002.06002.10672.94263.6189
H61.20142.58872.06002.06002.10673.61892.9426
H72.58871.20142.06002.06002.94263.61892.1067
H82.58871.20142.06002.06003.61892.94262.1067

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 84.441 B1 H4 B2 84.441
H3 B1 H4 95.559 H3 B1 H5 108.856
H3 B1 H6 108.856 H3 B2 H4 95.559
H3 B2 H7 108.856 H3 B2 H8 108.856
H4 B1 H5 108.856 H4 B1 H6 108.856
H4 B2 H7 108.856 H4 B2 H8 108.856
H5 B1 H6 122.504 H7 B2 H8 122.504
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability