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All results from a given calculation for B2H6 (Diborane)

using model chemistry: QCISD(T)/daug-cc-pVDZ

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)/daug-cc-pVDZ
 hartrees
Energy at 0K-53.091304
Energy at 298.15K-53.097203
HF Energy-52.817696
Nuclear repulsion energy31.713958
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)/daug-cc-pVDZ
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 2602 2602        
2 Ag 2162 2162        
3 Ag 1192 1192        
4 Ag 802 802        
5 Au 836 836        
6 B1g 2680 2680        
7 B1g 928 928        
8 B1u 1980 1980        
9 B1u 985 985        
10 B2g 1873 1873        
11 B2g 877 877        
12 B2u 2695 2695        
13 B2u 967 967        
14 B2u 367 367        
15 B3g 1056 1056        
16 B3u 2586 2586        
17 B3u 1740 1740        
18 B3u 1178 1178        

Unscaled Zero Point Vibrational Energy (zpe) 13751.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 13751.3 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)/daug-cc-pVDZ
ABC
2.62195 0.59473 0.54584

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/daug-cc-pVDZ

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.896 0.000 0.000
B2 -0.896 0.000 0.000
H3 0.000 0.000 0.982
H4 0.000 0.000 -0.982
H5 1.472 1.055 0.000
H6 1.472 -1.055 0.000
H7 -1.472 1.055 0.000
H8 -1.472 -1.055 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.79131.32941.32941.20191.20192.59212.5921
B21.79131.32941.32942.59212.59211.20191.2019
H31.32941.32941.96482.06032.06032.06032.0603
H41.32941.32941.96482.06032.06032.06032.0603
H51.20192.59212.06032.06032.10932.94433.6219
H61.20192.59212.06032.06032.10933.62192.9443
H72.59211.20192.06032.06032.94433.62192.1093
H82.59211.20192.06032.06033.62192.94432.1093

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 84.710 B1 H4 B2 84.710
H3 B1 H4 95.290 H3 B1 H5 108.853
H3 B1 H6 108.853 H3 B2 H4 95.290
H3 B2 H7 108.853 H3 B2 H8 108.853
H4 B1 H5 108.853 H4 B1 H6 108.853
H4 B2 H7 108.853 H4 B2 H8 108.853
H5 B1 H6 122.675 H7 B2 H8 122.675
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability