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All results from a given calculation for BC (boron monocarbide)

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

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C*V 4Σ-
2 1 yes C*V 2Π

State 1 (4Σ-)

Jump to S2C1
Energy calculated at QCISD(T)/aug-cc-pVTZ
 hartrees
Energy at 0K-62.537606
Energy at 298.15K-62.535132
HF Energy-62.334998
Nuclear repulsion energy10.535570
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)/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 Σ 1118 1081        

Unscaled Zero Point Vibrational Energy (zpe) 558.8 cm-1
Scaled (by 0.9668) Zero Point Vibrational Energy (zpe) 540.3 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)/aug-cc-pVTZ
B
1.29382

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 -0.822
C2 0.000 0.000 0.685

Atom - Atom Distances (Å)
  B1 C2
B11.5064
C21.5064

picture of boron monocarbide state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

State 2 (2Π)

Jump to S1C1
Energy calculated at QCISD(T)/aug-cc-pVTZ
 hartrees
Energy at 0K-62.521528
Energy at 298.15K-62.519052
Nuclear repulsion energy10.990091
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)/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 Σ 1097 1061        

Unscaled Zero Point Vibrational Energy (zpe) 548.6 cm-1
Scaled (by 0.9668) Zero Point Vibrational Energy (zpe) 530.4 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)/aug-cc-pVTZ
B
1.40625

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 -0.788
C2 0.000 0.000 0.657

Atom - Atom Distances (Å)
  B1 C2
B11.4449
C21.4449

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