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return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
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All results from a given calculation for (Aluminum isocyanide)

using model chemistry: CID/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 CID/6-31G*
 hartrees
Energy at 0K-334.514892
Energy at 298.15K 
HF Energy-334.224272
Nuclear repulsion energy58.115567
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 CID/6-31G*
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 2207 2039 424.21      
2 Σ 571 527 187.67      
3 Π 136 125 0.93      
3 Π 136 125 0.93      

Unscaled Zero Point Vibrational Energy (zpe) 1524.9 cm-1
Scaled (by 0.9237) Zero Point Vibrational Energy (zpe) 1408.5 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 CID/6-31G*
B
0.19571

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Al1 0.000 0.000 1.206
N2 0.000 0.000 -0.660
C3 0.000 0.000 -1.843

Atom - Atom Distances (Å)
  Al1 N2 C3
Al11.86703.0499
N21.86701.1829
C33.04991.1829

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