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

using model chemistry: CISD/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 CISD/cc-pVTZ
 hartrees
Energy at 0K-167.670515
Energy at 298.15K-167.670515
HF Energy-167.191698
Nuclear repulsion energy52.558962
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 CISD/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 2164 2012 235.49      
2 Σ 1357 1262 5.88      
3 Π 635 591 21.55      
3 Π 568 528 49.19      

Unscaled Zero Point Vibrational Energy (zpe) 2361.8 cm-1
Scaled (by 0.9298) Zero Point Vibrational Energy (zpe) 2196.0 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 CISD/cc-pVTZ
B
0.39817

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 -1.256
C2 0.000 0.000 -0.034
O3 0.000 0.000 1.124

Atom - Atom Distances (Å)
  N1 C2 O3
N11.22272.3807
C21.22271.1580
O32.38071.1580

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