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

using model chemistry: ROHF/3-21G*

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 ROHF/3-21G*
 hartrees
Energy at 0K-166.165898
Energy at 298.15K-166.165867
HF Energy-166.165898
Nuclear repulsion energy52.374628
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 ROHF/3-21G*
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 2192 1991 326.10      
2 Σ 1321 1200 0.38      
3 Π 583 529 31.18      
3 Π 582 529 66.82      

Unscaled Zero Point Vibrational Energy (zpe) 2338.8 cm-1
Scaled (by 0.9085) Zero Point Vibrational Energy (zpe) 2124.8 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 ROHF/3-21G*
B
0.39528

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROHF/3-21G*

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 -1.261
C2 0.000 0.000 -0.032
O3 0.000 0.000 1.128

Atom - Atom Distances (Å)
  N1 C2 O3
N11.22902.3895
C21.22901.1604
O32.38951.1604

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
Charges from optimized geometry at ROHF/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.407      
2 C 0.892      
3 O -0.485      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 0.505 0.505
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.378 0.000 0.000
y 0.000 -15.663 0.000
z 0.000 0.000 -22.234
Traceless
 xyz
x 4.570 0.000 0.000
y 0.000 2.644 0.000
z 0.000 0.000 -7.214
Polar
3z2-r2-14.427
x2-y21.284
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 32.209
(<r2>)1/2 5.675