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

using model chemistry: PBE1PBE/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 4Σ
Energy calculated at PBE1PBE/aug-cc-pV(T+d)Z
 hartrees
Energy at 0K-280.187488
Energy at 298.15K-280.186173
HF Energy-280.187488
Nuclear repulsion energy20.992096
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 PBE1PBE/aug-cc-pV(T+d)Z
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 639 639 55.54      

Unscaled Zero Point Vibrational Energy (zpe) 319.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 319.7 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 PBE1PBE/aug-cc-pV(T+d)Z
B
0.52496

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/aug-cc-pV(T+d)Z

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Al1 0.000 0.000 0.621
C2 0.000 0.000 -1.345

Atom - Atom Distances (Å)
  Al1 C2
Al11.9663
C21.9663

picture of Aluminum carbide state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/aug-cc-pV(T+d)Z Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Al 0.325      
2 C -0.325      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 1.777 1.777
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.001 0.000 0.000
y 0.000 -18.001 0.000
z 0.000 0.000 -22.975
Traceless
 xyz
x 2.487 0.000 0.000
y 0.000 2.487 0.000
z 0.000 0.000 -4.973
Polar
3z2-r2-9.947
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.987 0.000 0.000
y 0.000 6.987 0.000
z 0.000 0.000 11.508


<r2> (average value of r2) Å2
<r2> 28.150
(<r2>)1/2 5.306