return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: M06-2X/TZVP

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 M06-2X/TZVP
 hartrees
Energy at 0K-167.991888
Energy at 298.15K-167.991852
HF Energy-167.991888
Nuclear repulsion energy52.353148
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 M06-2X/TZVP
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 2049 1939 132.13      
2 Σ 1342 1270 7.75      
3 Π 610 577 19.82      
3 Π 539 510 43.69      

Unscaled Zero Point Vibrational Energy (zpe) 2270.3 cm-1
Scaled (by 0.9462) Zero Point Vibrational Energy (zpe) 2148.1 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 M06-2X/TZVP
B
0.39541

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/TZVP

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 -1.259
C2 0.000 0.000 -0.039
O3 0.000 0.000 1.130

Atom - Atom Distances (Å)
  N1 C2 O3
N11.21992.3889
C21.21991.1689
O32.38891.1689

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 M06-2X/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.188      
2 C 0.416      
3 O -0.228      


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 0.622 0.622
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.993 0.000 0.000
y 0.000 -14.637 0.000
z 0.000 0.000 -20.637
Traceless
 xyz
x 1.644 0.000 0.000
y 0.000 3.678 0.000
z 0.000 0.000 -5.322
Polar
3z2-r2-10.644
x2-y2-1.356
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.525 0.000 0.000
y 0.000 1.618 0.000
z 0.000 0.000 4.624


<r2> (average value of r2) Å2
<r2> 31.991
(<r2>)1/2 5.656