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

using model chemistry: B3PW91/3-21G

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 B3PW91/3-21G
 hartrees
Energy at 0K-166.994098
Energy at 298.15K-166.993974
HF Energy-166.994098
Nuclear repulsion energy51.256907
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 B3PW91/3-21G
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 1856 1784 6.85      
2 Σ 1244 1196 7.44      
3 Π 529 508 7.70      
3 Π 503 483 28.74      

Unscaled Zero Point Vibrational Energy (zpe) 2065.9 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 1985.8 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 B3PW91/3-21G
B
0.37962

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/3-21G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 -1.280
C2 0.000 0.000 -0.051
O3 0.000 0.000 1.158

Atom - Atom Distances (Å)
  N1 C2 O3
N11.22842.4376
C21.22841.2092
O32.43761.2092

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 B3PW91/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.334      
2 C 0.688      
3 O -0.353      


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 0.697 0.697
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.580 0.000 0.000
y 0.000 -14.369 0.000
z 0.000 0.000 -20.450
Traceless
 xyz
x 1.830 0.000 0.000
y 0.000 3.646 0.000
z 0.000 0.000 -5.476
Polar
3z2-r2-10.952
x2-y2-1.210
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.937 0.000 0.000
y 0.000 1.196 0.000
z 0.000 0.000 3.814


<r2> (average value of r2) Å2
<r2> 32.697
(<r2>)1/2 5.718