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All results from a given calculation for B2H6 (Diborane)

using model chemistry: MP2/TZVP

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/TZVP
 hartrees
Energy at 0K-53.060816
Energy at 298.15K-53.066752
HF Energy-52.832425
Nuclear repulsion energy32.192836
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/TZVP
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 2683 2544 0.00 243.99 0.12 0.21
2 Ag 2233 2116 0.00 83.48 0.07 0.13
3 Ag 1240 1175 0.00 10.86 0.72 0.83
4 Ag 828 784 0.00 18.15 0.20 0.33
5 Au 868 823 0.00 0.00 0.00 0.00
6 B1g 2766 2622 0.00 95.71 0.75 0.86
7 B1g 962 912 0.00 1.73 0.75 0.86
8 B1u 2056 1949 10.41 0.00 0.00 0.00
9 B1u 1010 957 22.94 0.00 0.00 0.00
10 B2g 1947 1846 0.00 6.84 0.75 0.86
11 B2g 877 831 0.00 2.72 0.75 0.86
12 B2u 2781 2636 177.01 0.00 0.75 0.86
13 B2u 990 939 2.21 0.00 0.00 0.00
14 B2u 367 348 14.66 0.00 0.00 0.00
15 B3g 1058 1003 0.00 20.65 0.75 0.86
16 B3u 2668 2529 146.54 0.00 0.00 0.00
17 B3u 1787 1694 517.70 0.00 0.00 0.00
18 B3u 1228 1164 85.15 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 14174.1 cm-1
Scaled (by 0.9479) Zero Point Vibrational Energy (zpe) 13435.6 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/TZVP
ABC
2.69945 0.61419 0.56408

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

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.880 0.000 0.000
B2 -0.880 0.000 0.000
H3 0.000 0.000 0.972
H4 0.000 0.000 -0.972
H5 1.453 1.038 0.000
H6 1.453 -1.038 0.000
H7 -1.453 1.038 0.000
H8 -1.453 -1.038 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.75901.31071.31071.18571.18572.55292.5529
B21.75901.31071.31072.55292.55291.18571.1857
H31.31071.31071.94352.03282.03282.03282.0328
H41.31071.31071.94352.03282.03282.03282.0328
H51.18572.55292.03282.03282.07552.90603.5711
H61.18572.55292.03282.03282.07553.57112.9060
H72.55291.18572.03282.03282.90603.57112.0755
H82.55291.18572.03282.03283.57112.90602.0755

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 84.295 B1 H4 B2 84.295
H3 B1 H4 95.705 H3 B1 H5 108.939
H3 B1 H6 108.939 H3 B2 H4 95.705
H3 B2 H7 108.939 H3 B2 H8 108.939
H4 B1 H5 108.939 H4 B1 H6 108.939
H4 B2 H7 108.939 H4 B2 H8 108.939
H5 B1 H6 122.149 H7 B2 H8 122.149
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability