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All results from a given calculation for B2H6 (Diborane)

using model chemistry: CCSD(T)/cc-pVQZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at CCSD(T)/cc-pVQZ
 hartrees
Energy at 0K-53.159087
Energy at 298.15K-53.165007
HF Energy-52.838971
Nuclear repulsion energy32.166866
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 CCSD(T)/cc-pVQZ
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 2627 2548        
2 Ag 2191 2125        
3 Ag 1209 1172        
4 Ag 818 793        
5 Au 854 829        
6 B1g 2705 2624        
7 B1g 942 913        
8 B1u 2020 1959        
9 B1u 994 964        
10 B2g 1902 1844        
11 B2g 897 870        
12 B2u 2719 2637        
13 B2u 973 944        
14 B2u 370 358        
15 B3g 1057 1025        
16 B3u 2612 2533        
17 B3u 1758 1705        
18 B3u 1199 1162        

Unscaled Zero Point Vibrational Energy (zpe) 13923.8 cm-1
Scaled (by 0.9697) Zero Point Vibrational Energy (zpe) 13501.9 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 CCSD(T)/cc-pVQZ
ABC
2.68528 0.61452 0.56430

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

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.879 0.000 0.000
B2 -0.879 0.000 0.000
H3 0.000 0.000 0.975
H4 0.000 0.000 -0.975
H5 1.452 1.040 0.000
H6 1.452 -1.040 0.000
H7 -1.452 1.040 0.000
H8 -1.452 -1.040 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.75801.31311.31311.18741.18742.55262.5526
B21.75801.31311.31312.55262.55261.18741.1874
H31.31311.31311.95102.03512.03512.03512.0351
H41.31311.31311.95102.03512.03512.03512.0351
H51.18742.55262.03512.03512.07992.90423.5722
H61.18742.55262.03512.03512.07993.57222.9042
H72.55261.18742.03512.03512.90423.57222.0799
H82.55261.18742.03512.03513.57222.90422.0799

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 84.045 B1 H4 B2 84.045
H3 B1 H4 95.955 H3 B1 H5 108.850
H3 B1 H6 108.850 H3 B2 H4 95.955
H3 B2 H7 108.850 H3 B2 H8 108.850
H4 B1 H5 108.850 H4 B1 H6 108.850
H4 B2 H7 108.850 H4 B2 H8 108.850
H5 B1 H6 122.284 H7 B2 H8 122.284
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability