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All results from a given calculation for B2H6 (Diborane)

using model chemistry: MP2/6-311+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 MP2/6-311+G(3df,2p)
 hartrees
Energy at 0K-53.088562
Energy at 298.15K-53.094507
HF Energy-52.833352
Nuclear repulsion energy32.256156
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 MP2/6-311+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 2662 2511 0.00 274.26 0.07 0.13
2 Ag 2220 2094 0.00 86.62 0.05 0.09
3 Ag 1225 1155 0.00 4.99 0.71 0.83
4 Ag 831 784 0.00 19.23 0.15 0.26
5 Au 868 819 0.00 0.00 0.00 0.00
6 B1g 2744 2588 0.00 102.64 0.75 0.86
7 B1g 951 898 0.00 0.59 0.75 0.86
8 B1u 2047 1931 7.10 0.00 0.00 0.00
9 B1u 1004 948 26.67 0.00 0.00 0.00
10 B2g 1937 1827 0.00 4.47 0.75 0.86
11 B2g 912 861 0.00 0.09 0.75 0.86
12 B2u 2758 2602 166.16 0.00 0.00 0.00
13 B2u 974 919 0.78 0.00 0.00 0.00
14 B2u 373 352 16.55 0.00 0.00 0.00
15 B3g 1066 1006 0.00 5.83 0.75 0.86
16 B3u 2646 2497 143.45 0.00 0.00 0.00
17 B3u 1769 1668 486.60 0.00 0.00 0.00
18 B3u 1214 1145 75.88 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 14100.2 cm-1
Scaled (by 0.9434) Zero Point Vibrational Energy (zpe) 13302.1 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 MP2/6-311+G(3df,2p)
ABC
2.69999 0.61819 0.56767

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-311+G(3df,2p)

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.876 0.000 0.000
B2 -0.876 0.000 0.000
H3 0.000 0.000 0.973
H4 0.000 0.000 -0.973
H5 1.448 1.037 0.000
H6 1.448 -1.037 0.000
H7 -1.448 1.037 0.000
H8 -1.448 -1.037 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.75241.30941.30941.18441.18442.54542.5454
B21.75241.30941.30942.54542.54541.18441.1844
H31.30941.30941.94622.02982.02982.02982.0298
H41.30941.30941.94622.02982.02982.02982.0298
H51.18442.54542.02982.02982.07402.89683.5627
H61.18442.54542.02982.02982.07403.56272.8968
H72.54541.18442.02982.02982.89683.56272.0740
H82.54541.18442.02982.02983.56272.89682.0740

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 84.002 B1 H4 B2 84.002
H3 B1 H4 95.998 H3 B1 H5 108.861
H3 B1 H6 108.861 H3 B2 H4 95.998
H3 B2 H7 108.861 H3 B2 H8 108.861
H4 B1 H5 108.861 H4 B1 H6 108.861
H4 B2 H7 108.861 H4 B2 H8 108.861
H5 B1 H6 122.221 H7 B2 H8 122.221
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability