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

using model chemistry: mPW1PW91/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 mPW1PW91/TZVP
 hartrees
Energy at 0K-168.013443
Energy at 298.15K-168.013381
HF Energy-168.013443
Nuclear repulsion energy52.296559
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/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 2030 1937 78.66      
2 Σ 1322 1262 8.37      
3 Π 597 569 16.33      
3 Π 515 492 43.45      

Unscaled Zero Point Vibrational Energy (zpe) 2232.2 cm-1
Scaled (by 0.954) Zero Point Vibrational Energy (zpe) 2129.5 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/TZVP
B
0.39462

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/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 -0.040
O3 0.000 0.000 1.132

Atom - Atom Distances (Å)
  N1 C2 O3
N11.21972.3912
C21.21971.1716
O32.39121.1716

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/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.149      
2 C 0.333      
3 O -0.183      


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 0.717 0.717
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.879 0.000 0.000
y 0.000 -14.510 0.000
z 0.000 0.000 -20.445
Traceless
 xyz
x 1.598 0.000 0.000
y 0.000 3.652 0.000
z 0.000 0.000 -5.250
Polar
3z2-r2-10.500
x2-y2-1.369
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.535 0.000 0.000
y 0.000 1.612 0.000
z 0.000 0.000 4.642


<r2> (average value of r2) Å2
<r2> 31.944
(<r2>)1/2 5.652