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All results from a given calculation for B2H6 (Diborane)

using model chemistry: QCISD(T)=FULL/aug-cc-pVTZ

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)=FULL/aug-cc-pVTZ
 hartrees
Energy at 0K-53.185464
Energy at 298.15K-53.191434
HF Energy-52.835206
Nuclear repulsion energy32.261996
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)=FULL/aug-cc-pVTZ
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 2632 2632 0.00      
2 Ag 2173 2173 0.00      
3 Ag 1218 1218 0.00      
4 Ag 825 825 0.00      
5 Au 879 879 0.00      
6 B1g 2713 2713 0.00      
7 B1g 944 944 0.00      
8 B1u 2018 2018 0.00      
9 B1u 999 999 0.00      
10 B2g 1911 1911 0.00      
11 B2g 904 904 0.00      
12 B2u 2727 2727 0.00      
13 B2u 992 992 0.00      
14 B2u 390 390 0.00      
15 B3g 1112 1112 0.00      
16 B3u 2615 2615 0.00      
17 B3u 1770 1770 0.00      
18 B3u 1205 1205 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 14013.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 14013.0 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)=FULL/aug-cc-pVTZ
ABC
2.69830 0.61849 0.56771

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)=FULL/aug-cc-pVTZ

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 0.972
H4 0.000 0.000 -0.972
H5 1.447 1.038 0.000
H6 1.447 -1.038 0.000
H7 -1.447 1.038 0.000
H8 -1.447 -1.038 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.75271.30881.30881.18441.18442.54462.5446
B21.75271.30881.30882.54462.54461.18441.1844
H31.30881.30881.94422.02882.02882.02882.0288
H41.30881.30881.94422.02882.02882.02882.0288
H51.18442.54462.02882.02882.07582.89403.5615
H61.18442.54462.02882.02882.07583.56152.8940
H72.54461.18442.02882.02882.89403.56152.0758
H82.54461.18442.02882.02883.56152.89402.0758

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 84.070 B1 H4 B2 84.070
H3 B1 H4 95.930 H3 B1 H5 108.819
H3 B1 H6 108.819 H3 B2 H4 95.930
H3 B2 H7 108.819 H3 B2 H8 108.819
H4 B1 H5 108.819 H4 B1 H6 108.819
H4 B2 H7 108.819 H4 B2 H8 108.819
H5 B1 H6 122.397 H7 B2 H8 122.397
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability