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All results from a given calculation for AlCN (Aluminum monocyanide)

using model chemistry: HF/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C*V 1Σ
Energy calculated at HF/3-21G
 hartrees
Energy at 0K-332.384666
Energy at 298.15K 
HF Energy-332.384666
Nuclear repulsion energy54.737178
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 HF/3-21G
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 2466 2234 62.61 47.96 0.11 0.21
2 Σ 498 451 171.04 18.61 0.75 0.86
3 Π 299 271 7.42 16.64 0.75 0.86
3 Π 299 271 7.42 16.64 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1781.5 cm-1
Scaled (by 0.9056) Zero Point Vibrational Energy (zpe) 1613.3 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 HF/3-21G
B
0.16550

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Al1 0.000 0.000 1.327
C2 0.000 0.000 -0.709
N3 0.000 0.000 -1.858

Atom - Atom Distances (Å)
  Al1 C2 N3
Al12.03633.1850
C22.03631.1487
N33.18501.1487

picture of Aluminum monocyanide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Al1 C2 N3 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Al 0.646      
2 C -0.209      
3 N -0.437      


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 2.891 2.891
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.803 0.000 0.000
y 0.000 -21.803 0.000
z 0.000 0.000 -35.458
Traceless
 xyz
x 6.827 0.000 0.000
y 0.000 6.827 0.000
z 0.000 0.000 -13.655
Polar
3z2-r2-27.310
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 6.528 0.000 0.000
y 0.000 6.528 0.000
z 0.000 0.000 8.228


<r2> (average value of r2) Å2
<r2> 66.537
(<r2>)1/2 8.157