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All results from a given calculation for NCO (isocyanato radical)

using model chemistry: CCSD(T)/cc-pVQZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C*V 2Π
Energy calculated at CCSD(T)/cc-pVQZ
 hartrees
Energy at 0K-167.799022
Energy at 298.15K-167.798939
HF Energy-167.201921
Nuclear repulsion energy51.969377
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(T)/cc-pVQZ
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 1993 1932        
2 Σ 1275 1237        
3 Π 581 563        
3 Π 504 489        

Unscaled Zero Point Vibrational Energy (zpe) 2176.4 cm-1
Scaled (by 0.9697) Zero Point Vibrational Energy (zpe) 2110.5 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 CCSD(T)/cc-pVQZ
B
0.38948

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/cc-pVQZ

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 -1.269
C2 0.000 0.000 -0.038
O3 0.000 0.000 1.138

Atom - Atom Distances (Å)
  N1 C2 O3
N11.23062.4070
C21.23061.1764
O32.40701.1764

picture of isocyanato radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 O3 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability