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

using model chemistry: CCSD/6-31G*

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 CCSD/6-31G*
 hartrees
Energy at 0K-92.471708
Energy at 298.15K-92.470454
HF Energy-92.204260
Nuclear repulsion energy18.824861
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 CCSD/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 2153 2033 9.93      

Unscaled Zero Point Vibrational Energy (zpe) 1076.3 cm-1
Scaled (by 0.9443) Zero Point Vibrational Energy (zpe) 1016.4 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 CCSD/6-31G*
B
1.87145

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.636
N2 0.000 0.000 0.545

Atom - Atom Distances (Å)
  C1 N2
C11.1806
N21.1806

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

Electronic state

Charges, Dipole, Quadrupole and Polarizability