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All results from a given calculation for HOCN (cyanic acid)

using model chemistry: M06-2X/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at M06-2X/3-21G*
 hartrees
Energy at 0K-167.621707
Energy at 298.15K-167.622626
HF Energy-167.621707
Nuclear repulsion energy57.362930
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/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 A' 3555 3367 114.32      
2 A' 2398 2271 56.17      
3 A' 1258 1191 109.11      
4 A' 1050 995 92.81      
5 A' 471 446 21.36      
6 A" 493 467 7.08      

Unscaled Zero Point Vibrational Energy (zpe) 4612.4 cm-1
Scaled (by 0.9472) Zero Point Vibrational Energy (zpe) 4368.8 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/3-21G*
ABC
21.81903 0.34472 0.33936

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.147 1.345 0.000
C2 0.000 0.190 0.000
O3 -0.209 -1.115 0.000
H4 0.638 -1.636 0.000

Atom - Atom Distances (Å)
  N1 C2 O3 H4
N11.16372.48523.0210
C21.16371.32191.9349
O32.48521.32190.9945
H43.02101.93490.9945

picture of cyanic acid state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 O3 178.188 C2 O3 H4 112.527
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.381      
2 C 0.557      
3 O -0.600      
4 H 0.424      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.633 -3.426 0.000 3.796
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.486 -3.748 0.000
y -3.748 -18.104 0.000
z 0.000 0.000 -16.456
Traceless
 xyz
x 1.794 -3.748 0.000
y -3.748 -2.133 0.000
z 0.000 0.000 0.339
Polar
3z2-r20.678
x2-y22.618
xy-3.748
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.348 0.005 0.000
y 0.005 3.784 0.000
z 0.000 0.000 0.976


<r2> (average value of r2) Å2
<r2> 36.823
(<r2>)1/2 6.068