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All results from a given calculation for SiC (silicon monocarbide)

using model chemistry: CID/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C*V 3Σ
2 1 yes C*V 1Σ

State 1 (3Σ)

Jump to S2C1
Energy calculated at CID/6-31G
 hartrees
Energy at 0K-326.661667
Energy at 298.15K-326.659871
HF Energy-326.578894
Nuclear repulsion energy24.587102
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/6-31G
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 764 715 16.03      

Unscaled Zero Point Vibrational Energy (zpe) 382.2 cm-1
Scaled (by 0.9352) Zero Point Vibrational Energy (zpe) 357.4 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 CID/6-31G
B
0.61416

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/6-31G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.542
C2 0.000 0.000 -1.266

Atom - Atom Distances (Å)
  Si1 C2
Si11.8079
C21.8079

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

State 2 (1Σ)

Jump to S1C1
Energy calculated at CID/6-31G
 hartrees
Energy at 0K-326.617507
Energy at 298.15K-326.615769
HF Energy-326.457783
Nuclear repulsion energy26.023966
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/6-31G
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 971 908 0.31      

Unscaled Zero Point Vibrational Energy (zpe) 485.4 cm-1
Scaled (by 0.9352) Zero Point Vibrational Energy (zpe) 454.0 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/6-31G
B
0.68804

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/6-31G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.512
C2 0.000 0.000 -1.196

Atom - Atom Distances (Å)
  Si1 C2
Si11.7081
C21.7081

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