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All results from a given calculation for B2 (Boron diatomic)

using model chemistry: QCISD(TQ)=FULL/cc-pVQZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
2 1 yes D*H 1Σg
3 1 yes D*H 5Σu

State 1 (3Σg)

Jump to S2C1 S3C1
Vibrational Frequencies calculated at QCISD(TQ)=FULL/cc-pVQZ
Rotational Constants (cm-1) from geometry optimized at QCISD(TQ)=FULL/cc-pVQZ
See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(TQ)=FULL/cc-pVQZ
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

State 2 (1Σg)

Jump to S1C1 S3C1
Energy calculated at QCISD(TQ)=FULL/cc-pVQZ
 hartrees
Energy at 0K-49.329190
Energy at 298.15K-49.326760
HF Energy-49.044820
Nuclear repulsion energy8.192133
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(TQ)=FULL/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 Σg 980 980        

Unscaled Zero Point Vibrational Energy (zpe) 489.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 489.9 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 QCISD(TQ)=FULL/cc-pVQZ
B
1.17499

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

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.807
B2 0.000 0.000 -0.807

Atom - Atom Distances (Å)
  B1 B2
B11.6144
B21.6144

picture of Boron diatomic state 2 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

State 3 (5Σu)

Jump to S1C1 S2C1
Energy calculated at QCISD(TQ)=FULL/cc-pVQZ
 hartrees
Energy at 0K-49.348617
Energy at 298.15K-49.346223
HF Energy-49.174681
Nuclear repulsion energy8.716852
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(TQ)=FULL/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 Σg 1269 1269        

Unscaled Zero Point Vibrational Energy (zpe) 634.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 634.6 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(TQ)=FULL/cc-pVQZ
B
1.33034

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

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.759
B2 0.000 0.000 -0.759

Atom - Atom Distances (Å)
  B1 B2
B11.5172
B21.5172

picture of Boron diatomic state 3 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability