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

using model chemistry: CID/3-21G

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 CID/3-21G
 hartrees
Energy at 0K-62.061655
Energy at 298.15K-62.059166
HF Energy-61.967550
Nuclear repulsion energy10.072421
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 CID/3-21G
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 1013 944 49.31      

Unscaled Zero Point Vibrational Energy (zpe) 506.6 cm-1
Scaled (by 0.9316) Zero Point Vibrational Energy (zpe) 472.0 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 CID/3-21G
B
1.18190

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/3-21G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 -0.860
C2 0.000 0.000 0.716

Atom - Atom Distances (Å)
  B1 C2
B11.5761
C21.5761

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 CID/3-21G
 hartrees
Energy at 0K-62.026539
Energy at 298.15K-62.024099
Nuclear repulsion energy11.294135
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 CID/3-21G
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 2096 1952 687.80      

Unscaled Zero Point Vibrational Energy (zpe) 1047.9 cm-1
Scaled (by 0.9316) Zero Point Vibrational Energy (zpe) 976.2 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 CID/3-21G
B
1.48600

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/3-21G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 -0.767
C2 0.000 0.000 0.639

Atom - Atom Distances (Å)
  B1 C2
B11.4056
C21.4056

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