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

using model chemistry: HF/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 HF/CEP-121G
 hartrees
Energy at 0K-17.050807
Energy at 298.15K 
HF Energy-17.050807
Nuclear repulsion energy15.216427
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 HF/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 2178 1988 571.06 85.08 0.12 0.22
2 Σ 545 497 211.37 16.71 0.74 0.85
3 Π 266 243 0.02 12.50 0.75 0.86
3 Π 266 243 0.02 12.50 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1627.3 cm-1
Scaled (by 0.9125) Zero Point Vibrational Energy (zpe) 1484.9 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 HF/CEP-121G
B
0.19409

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Al1 0.000 0.000 1.211
N2 0.000 0.000 -0.663
C3 0.000 0.000 -1.851

Atom - Atom Distances (Å)
  Al1 N2 C3
Al11.87473.0627
N21.87471.1880
C33.06271.1880

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 HF/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Al 0.718      
2 N -0.505      
3 C -0.213      


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 2.717 2.717
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.691 0.000 0.000
y 0.000 -20.691 0.000
z 0.000 0.000 -31.830
Traceless
 xyz
x 5.570 0.000 0.000
y 0.000 5.570 0.000
z 0.000 0.000 -11.139
Polar
3z2-r2-22.279
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 7.006 0.000 0.000
y 0.000 7.006 0.000
z 0.000 0.000 8.702


<r2> (average value of r2) Å2
<r2> 35.552
(<r2>)1/2 5.963