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

using model chemistry: B3PW91/3-21G*

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 B3PW91/3-21G*
 hartrees
Energy at 0K-333.373590
Energy at 298.15K 
HF Energy-333.373590
Nuclear repulsion energy54.720441
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 B3PW91/3-21G*
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 2237 2147 99.54      
2 Σ 501 481 134.25      
3 Π 299 287 6.87      
3 Π 299 287 6.87      

Unscaled Zero Point Vibrational Energy (zpe) 1668.3 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 1600.6 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 B3PW91/3-21G*
B
0.16731

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/3-21G*

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Al1 0.000 0.000 1.317
C2 0.000 0.000 -0.685
N3 0.000 0.000 -1.859

Atom - Atom Distances (Å)
  Al1 C2 N3
Al12.00173.1755
C22.00171.1738
N33.17551.1738

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 B3PW91/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Al 0.405      
2 C 0.014      
3 N -0.419      


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 2.536 2.536
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.605 0.000 0.000
y 0.000 -21.605 0.000
z 0.000 0.000 -32.871
Traceless
 xyz
x 5.633 0.000 0.000
y 0.000 5.633 0.000
z 0.000 0.000 -11.266
Polar
3z2-r2-22.532
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 6.266 0.000 0.000
y 0.000 6.266 0.000
z 0.000 0.000 8.532


<r2> (average value of r2) Å2
<r2> 65.378
(<r2>)1/2 8.086