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All results from a given calculation for CN (Cyano radical)

using model chemistry: MP2/CEP-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C*V 2Σ
Energy calculated at MP2/CEP-31G*
 hartrees
Energy at 0K-15.267351
Energy at 298.15K-15.266097
HF Energy-15.051212
Nuclear repulsion energy9.192726
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 MP2/CEP-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 2774 2634 27.80      

Unscaled Zero Point Vibrational Energy (zpe) 1387.2 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 1317.0 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 MP2/CEP-31G*
B
1.96808

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-31G*

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.620
N2 0.000 0.000 0.531

Atom - Atom Distances (Å)
  C1 N2
C11.1513
N21.1513

picture of Cyano radical state 1 conformation 1
More geometry information
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability