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All results from a given calculation for AlNC (Aluminum isocyanide)

using model chemistry: TPSSh/STO-3G

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 TPSSh/STO-3G
 hartrees
Energy at 0K-331.138078
Energy at 298.15K 
HF Energy-331.138078
Nuclear repulsion energy57.303857
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 TPSSh/STO-3G
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 2139 2139 306.98 32.78 0.29 0.45
2 Σ 601 601 148.75 11.28 0.33 0.50
3 Π 93 93 0.29 2.42 0.75 0.86
3 Π 93 93 0.29 2.42 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1462.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1462.1 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 TPSSh/STO-3G
B
0.19118

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Al1 0.000 0.000 1.218
N2 0.000 0.000 -0.657
C3 0.000 0.000 -1.873

Atom - Atom Distances (Å)
  Al1 N2 C3
Al11.87563.0916
N21.87561.2160
C33.09161.2160

picture of Aluminum isocyanide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Al1 N2 C3 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Al 0.554      
2 N -0.481      
3 C -0.072      


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 4.491 4.491
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.271 0.000 0.000
y 0.000 2.271 0.000
z 0.000 0.000 4.521


<r2> (average value of r2) Å2
<r2> 55.869
(<r2>)1/2 7.475