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 AlCN (Aluminum monocyanide)

using model chemistry: CCD/6-31G**

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 CCD/6-31G**
 hartrees
Energy at 0K-334.540455
Energy at 298.15K 
HF Energy-334.206323
Nuclear repulsion energy54.440832
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 CCD/6-31G**
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 2262 2120 83.23      
2 Σ 480 450 145.74      
3 Π 168 158 6.74      
3 Π 168 158 6.74      

Unscaled Zero Point Vibrational Energy (zpe) 1538.9 cm-1
Scaled (by 0.9376) Zero Point Vibrational Energy (zpe) 1442.9 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 CCD/6-31G**
B
0.16508

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/6-31G**

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 -0.695
N3 0.000 0.000 -1.868

Atom - Atom Distances (Å)
  Al1 C2 N3
Al12.02203.1946
C22.02201.1727
N33.19461.1727

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