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

using model chemistry: mPW1PW91/3-21G

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 mPW1PW91/3-21G
 hartrees
Energy at 0K-167.013682
Energy at 298.15K-167.013566
HF Energy-167.013682
Nuclear repulsion energy51.374857
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 mPW1PW91/3-21G
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 1859 1775 6.15      
2 Σ 1256 1199 7.23      
3 Π 533 509 8.50      
3 Π 509 486 29.66      

Unscaled Zero Point Vibrational Energy (zpe) 2078.5 cm-1
Scaled (by 0.9546) Zero Point Vibrational Energy (zpe) 1984.1 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 mPW1PW91/3-21G
B
0.38137

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/3-21G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 -1.277
C2 0.000 0.000 -0.051
O3 0.000 0.000 1.155

Atom - Atom Distances (Å)
  N1 C2 O3
N11.22532.4319
C21.22531.2066
O32.43191.2066

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 mPW1PW91/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.340      
2 C 0.700      
3 O -0.360      


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 0.701 0.701
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.374 0.000 0.000
y 0.000 -15.580 0.000
z 0.000 0.000 -20.518
Traceless
 xyz
x 3.675 0.000 0.000
y 0.000 1.866 0.000
z 0.000 0.000 -5.541
Polar
3z2-r2-11.082
x2-y21.206
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.200 0.000 0.000
y 0.000 0.931 0.000
z 0.000 0.000 3.807


<r2> (average value of r2) Å2
<r2> 32.610
(<r2>)1/2 5.711