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

using model chemistry: MP2/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-92.515970
Energy at 298.15K-92.514716
HF Energy-92.234340
Nuclear repulsion energy19.730656
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/cc-pVTZ
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 2895 2749 23.71      

Unscaled Zero Point Vibrational Energy (zpe) 1447.7 cm-1
Scaled (by 0.9495) Zero Point Vibrational Energy (zpe) 1374.6 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/cc-pVTZ
B
2.05588

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/cc-pVTZ

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.607
N2 0.000 0.000 0.520

Atom - Atom Distances (Å)
  C1 N2
C11.1264
N21.1264

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

Electronic state

Charges, Dipole, Quadrupole and Polarizability