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All results from a given calculation for HBBH (Diborane(2))

using model chemistry: CCSD(T)=FULL/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D*H 3ΣG
Energy calculated at CCSD(T)=FULL/cc-pVDZ
 hartrees
Energy at 0K-50.589549
Energy at 298.15K-50.589562
HF Energy-50.425448
Nuclear repulsion energy15.127437
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)=FULL/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 Σg 2808 2704 0.00      
2 Σg 1248 1202 0.00      
3 Σu 2766 2664 0.00      
4 Πg 548 528 0.00      
4 Πg 548 528 0.00      
5 Πu 619 596 0.00      
5 Πu 619 596 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 4577.8 cm-1
Scaled (by 0.9632) Zero Point Vibrational Energy (zpe) 4409.3 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 CCSD(T)=FULL/cc-pVDZ
B
0.81343

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

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.768
B2 0.000 0.000 -0.768
H3 0.000 0.000 1.960
H4 0.000 0.000 -1.960

Atom - Atom Distances (Å)
  B1 B2 H3 H4
B11.53581.19182.7275
B21.53582.72751.1918
H31.19182.72753.9193
H42.72751.19183.9193

picture of Diborane(2) state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 B2 H4 180.000 B2 B1 H3 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability