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

using model chemistry: wB97X-D/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 wB97X-D/3-21G*
 hartrees
Energy at 0K-167.638528
Energy at 298.15K-167.639433
HF Energy-167.638528
Nuclear repulsion energy57.490813
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/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' 3596 3408 108.92      
2 A' 2381 2257 61.88      
3 A' 1259 1193 110.99      
4 A' 1051 996 97.18      
5 A' 459 435 21.38      
6 A" 488 462 4.15      

Unscaled Zero Point Vibrational Energy (zpe) 4616.6 cm-1
Scaled (by 0.9478) Zero Point Vibrational Energy (zpe) 4375.6 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 wB97X-D/3-21G*
ABC
22.12975 0.34617 0.34084

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.091 1.347 0.000
C2 0.000 0.188 0.000
O3 -0.163 -1.115 0.000
H4 0.671 -1.639 0.000

Atom - Atom Distances (Å)
  N1 C2 O3 H4
N11.16242.47473.0421
C21.16241.31301.9466
O32.47471.31300.9854
H43.04211.94660.9854

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 177.337 C2 O3 H4 115.023
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.400      
2 C 0.573      
3 O -0.597      
4 H 0.425      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.675 -3.495 0.000 3.876
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.210 -3.651 0.000
y -3.651 -18.050 0.000
z 0.000 0.000 -16.317
Traceless
 xyz
x 1.974 -3.651 0.000
y -3.651 -2.286 0.000
z 0.000 0.000 0.312
Polar
3z2-r20.625
x2-y22.840
xy-3.651
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.336 -0.028 0.000
y -0.028 3.758 0.000
z 0.000 0.000 0.985


<r2> (average value of r2) Å2
<r2> 36.605
(<r2>)1/2 6.050