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 ClCN (chlorocyanogen)

using model chemistry: M06-2X/3-21G*

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 M06-2X/3-21G*
 hartrees
Energy at 0K-550.340501
Energy at 298.15K-550.340304
HF Energy-550.340501
Nuclear repulsion energy74.571612
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 M06-2X/3-21G*
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 2353 2228 18.67      
2 Σ 763 723 4.09      
3 Π 470 445 2.00      
4 Π 470 445 2.00      

Unscaled Zero Point Vibrational Energy (zpe) 2027.1 cm-1
Scaled (by 0.9472) Zero Point Vibrational Energy (zpe) 1920.1 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 M06-2X/3-21G*
B
0.19798

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/3-21G*

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Cl1 0.000 0.000 0.981
C2 0.000 0.000 -0.657
N3 0.000 0.000 -1.819

Atom - Atom Distances (Å)
  Cl1 C2 N3
Cl11.63812.7999
C21.63811.1618
N32.79991.1618

picture of chlorocyanogen state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl1 C2 N3 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Cl 0.246      
2 C 0.149      
3 N -0.395      


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 2.381 2.381
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.997 0.000 0.000
y 0.000 -22.997 0.000
z 0.000 0.000 -26.871
Traceless
 xyz
x 1.937 0.000 0.000
y 0.000 1.937 0.000
z 0.000 0.000 -3.874
Polar
3z2-r2-7.747
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 1.630 0.000 0.000
y 0.000 1.630 0.000
z 0.000 0.000 5.372


<r2> (average value of r2) Å2
<r2> 57.279
(<r2>)1/2 7.568