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: B3LYP/TZVP

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 B3LYP/TZVP
 hartrees
Energy at 0K-553.067888
Energy at 298.15K-553.067563
HF Energy-553.067888
Nuclear repulsion energy74.567152
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 B3LYP/TZVP
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 2319 2238 44.73      
2 Σ 733 708 8.35      
3 Π 400 387 2.31      
3 Π 400 387 2.31      

Unscaled Zero Point Vibrational Energy (zpe) 1926.2 cm-1
Scaled (by 0.9654) Zero Point Vibrational Energy (zpe) 1859.5 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 B3LYP/TZVP
B
0.19781

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/TZVP

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Cl1 0.000 0.000 0.982
C2 0.000 0.000 -0.663
N3 0.000 0.000 -1.817

Atom - Atom Distances (Å)
  Cl1 C2 N3
Cl11.64532.7991
C21.64531.1537
N32.79911.1537

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 B3LYP/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Cl 0.076      
2 C 0.043      
3 N -0.119      


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 2.891 2.891
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.062 0.000 0.000
y 0.000 -23.062 0.000
z 0.000 0.000 -27.256
Traceless
 xyz
x 2.097 0.000 0.000
y 0.000 2.097 0.000
z 0.000 0.000 -4.194
Polar
3z2-r2-8.389
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 2.233 0.000 0.000
y 0.000 2.233 0.000
z 0.000 0.000 6.290


<r2> (average value of r2) Å2
<r2> 57.423
(<r2>)1/2 7.578