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: LSDA/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 LSDA/6-31G**
 hartrees
Energy at 0K-167.093677
Energy at 298.15K-167.093524
HF Energy-167.093677
Nuclear repulsion energy51.654180
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 LSDA/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 2062 2023 40.12      
2 Σ 1291 1267 9.12      
3 Π 543 533 10.82      
3 Π 453 445 34.24      

Unscaled Zero Point Vibrational Energy (zpe) 2174.3 cm-1
Scaled (by 0.9813) Zero Point Vibrational Energy (zpe) 2133.6 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 LSDA/6-31G**
B
0.38518

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 -1.273
C2 0.000 0.000 -0.044
O3 0.000 0.000 1.147

Atom - Atom Distances (Å)
  N1 C2 O3
N11.22972.4202
C21.22971.1905
O32.42021.1905

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 LSDA/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.308      
2 C 0.565      
3 O -0.257      


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 0.757 0.757
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.383 0.000 0.000
y 0.000 -15.648 0.000
z 0.000 0.000 -19.596
Traceless
 xyz
x 3.239 0.000 0.000
y 0.000 1.342 0.000
z 0.000 0.000 -4.581
Polar
3z2-r2-9.162
x2-y21.265
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.433 0.000 0.000
y 0.000 1.321 0.000
z 0.000 0.000 4.206


<r2> (average value of r2) Å2
<r2> 32.216
(<r2>)1/2 5.676