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

using model chemistry: MP4/aug-cc-pV(T+d)Z

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 MP4/aug-cc-pV(T+d)Z
 hartrees
Energy at 0K-326.849116
Energy at 298.15K-326.847388
HF Energy-326.645203
Nuclear repulsion energy26.228642
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 MP4/aug-cc-pV(T+d)Z
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 Σ 926 926        

Unscaled Zero Point Vibrational Energy (zpe) 462.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 462.9 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 MP4/aug-cc-pV(T+d)Z
B
0.69905

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/aug-cc-pV(T+d)Z

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.508
C2 0.000 0.000 -1.186

Atom - Atom Distances (Å)
  Si1 C2
Si11.6946
C21.6946

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 MP4/aug-cc-pV(T+d)Z
 hartrees
Energy at 0K-326.842329
Energy at 298.15K-326.840606
HF Energy-326.534472
Nuclear repulsion energy26.341845
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 MP4/aug-cc-pV(T+d)Z
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 Σ 957 957        

Unscaled Zero Point Vibrational Energy (zpe) 478.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 478.7 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 MP4/aug-cc-pV(T+d)Z
B
0.70511

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/aug-cc-pV(T+d)Z

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.506
C2 0.000 0.000 -1.181

Atom - Atom Distances (Å)
  Si1 C2
Si11.6873
C21.6873

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