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

using model chemistry: CISD/6-31G*

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/6-31G*
 hartrees
Energy at 0K-167.519405
Energy at 298.15K-167.519353
HF Energy-167.127963
Nuclear repulsion energy52.061980
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/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 2137 1978 176.24      
2 Σ 1364 1263 6.91      
3 Π 593 549 22.05      
3 Π 542 501 50.53      

Unscaled Zero Point Vibrational Energy (zpe) 2317.4 cm-1
Scaled (by 0.9258) Zero Point Vibrational Energy (zpe) 2145.5 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 CISD/6-31G*
B
0.39084

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 -1.267
C2 0.000 0.000 -0.036
O3 0.000 0.000 1.136

Atom - Atom Distances (Å)
  N1 C2 O3
N11.23102.4029
C21.23101.1719
O32.40291.1719

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