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All results from a given calculation for B2H6 (Diborane)

using model chemistry: QCISD(T)/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at QCISD(T)/6-311G*
 hartrees
Energy at 0K-53.054112
Energy at 298.15K-53.059987
HF Energy-52.817982
Nuclear repulsion energy31.934687
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 QCISD(T)/6-311G*
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 2588 2492        
2 Ag 2159 2079        
3 Ag 1188 1143        
4 Ag 815 785        
5 Au 853 821        
6 B1g 2668 2569        
7 B1g 936 901        
8 B1u 2009 1934        
9 B1u 986 950        
10 B2g 1867 1798        
11 B2g 891 858        
12 B2u 2682 2582        
13 B2u 961 925        
14 B2u 348 335        
15 B3g 1059 1020        
16 B3u 2573 2477        
17 B3u 1725 1661        
18 B3u 1172 1129        

Unscaled Zero Point Vibrational Energy (zpe) 13739.6 cm-1
Scaled (by 0.9628) Zero Point Vibrational Energy (zpe) 13228.5 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 QCISD(T)/6-311G*
ABC
2.64007 0.60700 0.55767

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/6-311G*

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.884 0.000 0.000
B2 -0.884 0.000 0.000
H3 0.000 0.000 0.987
H4 0.000 0.000 -0.987
H5 1.461 1.047 0.000
H6 1.461 -1.047 0.000
H7 -1.461 1.047 0.000
H8 -1.461 -1.047 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.76761.32501.32501.19601.19602.56842.5684
B21.76761.32501.32502.56842.56841.19601.1960
H31.32501.32501.97432.05112.05112.05112.0511
H41.32501.32501.97432.05112.05112.05112.0511
H51.19602.56842.05112.05112.09442.92283.5958
H61.19602.56842.05112.05112.09443.59582.9228
H72.56841.19602.05112.05112.92283.59582.0944
H82.56841.19602.05112.05113.59582.92282.0944

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 83.674 B1 H4 B2 83.674
H3 B1 H4 96.326 H3 B1 H5 108.793
H3 B1 H6 108.793 H3 B2 H4 96.326
H3 B2 H7 108.793 H3 B2 H8 108.793
H4 B1 H5 108.793 H4 B1 H6 108.793
H4 B2 H7 108.793 H4 B2 H8 108.793
H5 B1 H6 122.240 H7 B2 H8 122.240
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability