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All results from a given calculation for B2H6 (Diborane)

using model chemistry: B2PLYP=FULL/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at B2PLYP=FULL/3-21G
 hartrees
Energy at 0K-52.854406
Energy at 298.15K-52.860361
HF Energy-52.808324
Nuclear repulsion energy32.045478
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 B2PLYP=FULL/3-21G
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 2691 2562 0.00 201.23 0.11 0.19
2 Ag 2204 2098 0.00 91.68 0.10 0.19
3 Ag 1221 1163 0.00 15.44 0.75 0.85
4 Ag 808 769 0.00 17.45 0.25 0.40
5 Au 889 846 0.00 0.00 0.00 0.00
6 B1g 2782 2648 0.00 85.90 0.75 0.86
7 B1g 928 883 0.00 1.62 0.75 0.86
8 B1u 1971 1877 22.66 0.00 0.00 0.00
9 B1u 1007 958 13.27 0.00 0.00 0.00
10 B2g 1886 1796 0.00 6.33 0.75 0.86
11 B2g 866 825 0.00 3.20 0.75 0.86
12 B2u 2794 2660 135.30 0.00 0.00 0.00
13 B2u 1005 957 1.99 0.00 0.00 0.00
14 B2u 396 377 9.57 0.00 0.00 0.00
15 B3g 1118 1064 0.00 42.59 0.75 0.86
16 B3u 2680 2552 114.19 0.00 0.00 0.00
17 B3u 1764 1679 516.42 0.00 0.00 0.00
18 B3u 1223 1164 77.32 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 14116.4 cm-1
Scaled (by 0.952) Zero Point Vibrational Energy (zpe) 13438.8 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 B2PLYP=FULL/3-21G
ABC
2.68730 0.60625 0.55702

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/3-21G

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.886 0.000 0.000
B2 -0.886 0.000 0.000
H3 0.000 0.000 0.973
H4 0.000 0.000 -0.973
H5 1.460 1.041 0.000
H6 1.460 -1.041 0.000
H7 -1.460 1.041 0.000
H8 -1.460 -1.041 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.77291.31621.31621.18831.18832.56712.5671
B21.77291.31621.31622.56712.56711.18831.1883
H31.31621.31621.94572.04002.04002.04002.0400
H41.31621.31621.94572.04002.04002.04002.0400
H51.18832.56712.04002.04002.08122.92053.5862
H61.18832.56712.04002.04002.08123.58622.9205
H72.56711.18832.04002.04002.92053.58622.0812
H82.56711.18832.04002.04003.58622.92052.0812

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 84.680 B1 H4 B2 84.680
H3 B1 H4 95.320 H3 B1 H5 108.978
H3 B1 H6 108.978 H3 B2 H4 95.320
H3 B2 H7 108.978 H3 B2 H8 108.978
H4 B1 H5 108.978 H4 B1 H6 108.978
H4 B2 H7 108.978 H4 B2 H8 108.978
H5 B1 H6 122.257 H7 B2 H8 122.257
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability