return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: M06-2X/aug-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 M06-2X/aug-cc-pVDZ
 hartrees
Energy at 0K-280.307096
Energy at 298.15K-280.305740
HF Energy-280.307096
Nuclear repulsion energy20.739375
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 M06-2X/aug-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 621 621 76.16      

Unscaled Zero Point Vibrational Energy (zpe) 310.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 310.6 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 M06-2X/aug-cc-pVDZ
B
0.51240

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/aug-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 -1.362

Atom - Atom Distances (Å)
  Al1 C2
Al11.9902
C21.9902

picture of Aluminum carbide state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Al 0.343      
2 C -0.343      


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 2.041 2.041
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.124 0.000 0.000
y 0.000 -18.124 0.000
z 0.000 0.000 -22.651
Traceless
 xyz
x 2.264 0.000 0.000
y 0.000 2.264 0.000
z 0.000 0.000 -4.528
Polar
3z2-r2-9.055
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 6.731 0.000 0.000
y 0.000 6.731 0.000
z 0.000 0.000 10.914


<r2> (average value of r2) Å2
<r2> 28.523
(<r2>)1/2 5.341