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

using model chemistry: MP2/CEP-121G

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 MP2/CEP-121G
 hartrees
Energy at 0K-17.266647
Energy at 298.15K 
HF Energy-17.046683
Nuclear repulsion energy14.712415
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 MP2/CEP-121G
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 1894 1848 258.92 134.38 0.16 0.28
2 Σ 477 466 204.04 21.37 0.74 0.85
3 Π 211 206 0.63 10.11 0.75 0.86
3 Π 211 206 0.63 10.11 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1396.8 cm-1
Scaled (by 0.976) Zero Point Vibrational Energy (zpe) 1363.3 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 MP2/CEP-121G
B
0.18133

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-121G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Al1 0.000 0.000 1.254
N2 0.000 0.000 -0.687
C3 0.000 0.000 -1.915

Atom - Atom Distances (Å)
  Al1 N2 C3
Al11.94013.1684
N21.94011.2282
C33.16841.2282

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