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: wB97X-D/Def2TZVPP

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 wB97X-D/Def2TZVPP
 hartrees
Energy at 0K-168.010184
Energy at 298.15K-168.010134
HF Energy-168.010184
Nuclear repulsion energy52.333701
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 wB97X-D/Def2TZVPP
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 2043 1951 95.87      
2 Σ 1319 1260 7.67      
3 Π 609 582 16.56      
3 Π 524 500 40.23      

Unscaled Zero Point Vibrational Energy (zpe) 2247.0 cm-1
Scaled (by 0.9552) Zero Point Vibrational Energy (zpe) 2146.3 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 wB97X-D/Def2TZVPP
B
0.39509

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/Def2TZVPP

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 -0.038
O3 0.000 0.000 1.131

Atom - Atom Distances (Å)
  N1 C2 O3
N11.22102.3899
C21.22101.1688
O32.38991.1688

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 wB97X-D/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.155      
2 C 0.298      
3 O -0.143      


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 0.735 0.735
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.527 0.000 0.000
y 0.000 -15.847 0.000
z 0.000 0.000 -20.055
Traceless
 xyz
x 3.425 0.000 0.000
y 0.000 1.444 0.000
z 0.000 0.000 -4.868
Polar
3z2-r2-9.737
x2-y21.321
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.877 0.000 0.000
y 0.000 1.830 0.000
z 0.000 0.000 4.615


<r2> (average value of r2) Å2
<r2> 31.834
(<r2>)1/2 5.642