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

using model chemistry: MP2=FULL/6-311G*

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 MP2=FULL/6-311G*
 hartrees
Energy at 0K-62.499901
Energy at 298.15K-62.497414
HF Energy-62.329407
Nuclear repulsion energy10.629867
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 MP2=FULL/6-311G*
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 1029 975 110.18      

Unscaled Zero Point Vibrational Energy (zpe) 514.5 cm-1
Scaled (by 0.9471) Zero Point Vibrational Energy (zpe) 487.3 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 MP2=FULL/6-311G*
B
1.31635

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311G*

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 -0.815
C2 0.000 0.000 0.679

Atom - Atom Distances (Å)
  B1 C2
B11.4935
C21.4935

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 MP2=FULL/6-311G*
 hartrees
Energy at 0K-62.479083
Energy at 298.15K-62.476644
Nuclear repulsion energy11.466234
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 MP2=FULL/6-311G*
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 2519 2386 1054.30      

Unscaled Zero Point Vibrational Energy (zpe) 1259.4 cm-1
Scaled (by 0.9471) Zero Point Vibrational Energy (zpe) 1192.8 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 MP2=FULL/6-311G*
B
1.53164

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311G*

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 -0.755
C2 0.000 0.000 0.629

Atom - Atom Distances (Å)
  B1 C2
B11.3845
C21.3845

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