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All results from a given calculation for AlC (Aluminum carbide)

using model chemistry: QCISD/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C*V 4Σ
Energy calculated at QCISD/3-21G*
 hartrees
Energy at 0K-278.263826
Energy at 298.15K-278.262497
HF Energy-278.167528
Nuclear repulsion energy20.897308
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/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 678 652 65.74      

Unscaled Zero Point Vibrational Energy (zpe) 338.9 cm-1
Scaled (by 0.9611) Zero Point Vibrational Energy (zpe) 325.7 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 QCISD/3-21G*
B
0.52023

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Al1 0.000 0.000 0.624
C2 0.000 0.000 -1.351

Atom - Atom Distances (Å)
  Al1 C2
Al11.9752
C21.9752

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