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

using model chemistry: QCISD(T)/cc-pVTZ

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 QCISD(T)/cc-pVTZ
 hartrees
Energy at 0K-167.752639
Energy at 298.15K-167.752538
HF Energy-167.188855
Nuclear repulsion energy51.746959
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 QCISD(T)/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 1977 1875        
2 Σ 1257 1193        
3 Π 568 539        
3 Π 492 466        

Unscaled Zero Point Vibrational Energy (zpe) 2146.6 cm-1
Scaled (by 0.9486) Zero Point Vibrational Energy (zpe) 2036.2 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 QCISD(T)/cc-pVTZ
B
0.38623

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 -1.273
C2 0.000 0.000 -0.039
O3 0.000 0.000 1.144

Atom - Atom Distances (Å)
  N1 C2 O3
N11.23402.4171
C21.23401.1831
O32.41711.1831

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