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

using model chemistry: mPW1PW91/cc-pVDZ

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 mPW1PW91/cc-pVDZ
 hartrees
Energy at 0K-280.325587
Energy at 298.15K-280.324231
HF Energy-280.325587
Nuclear repulsion energy20.747679
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 mPW1PW91/cc-pVDZ
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 622 596 52.34      

Unscaled Zero Point Vibrational Energy (zpe) 311.1 cm-1
Scaled (by 0.9583) Zero Point Vibrational Energy (zpe) 298.2 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 mPW1PW91/cc-pVDZ
B
0.51281

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/cc-pVDZ

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Al1 0.000 0.000 0.628
C2 0.000 0.000 -1.361

Atom - Atom Distances (Å)
  Al1 C2
Al11.9894
C21.9894

picture of Aluminum carbide state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Al 0.280      
2 C -0.280      


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 1.640 1.640
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.813 0.000 0.000
y 0.000 -17.813 0.000
z 0.000 0.000 -22.708
Traceless
 xyz
x 2.448 0.000 0.000
y 0.000 2.448 0.000
z 0.000 0.000 -4.896
Polar
3z2-r2-9.791
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 5.824 0.000 0.000
y 0.000 5.824 0.000
z 0.000 0.000 10.182


<r2> (average value of r2) Å2
<r2> 28.392
(<r2>)1/2 5.328