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

using model chemistry: HF/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/aug-cc-pVDZ
 hartrees
Energy at 0K-167.754252
Energy at 298.15K-167.755307
Nuclear repulsion energy58.955462
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 HF/aug-cc-pVDZ
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' 4094 3728 213.85      
2 A' 2612 2378 187.77      
3 A' 1374 1251 122.65      
4 A' 1185 1079 52.80      
5 A' 521 474 18.74      
6 A" 587 535 13.18      

Unscaled Zero Point Vibrational Energy (zpe) 5186.8 cm-1
Scaled (by 0.9106) Zero Point Vibrational Energy (zpe) 4723.1 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 HF/aug-cc-pVDZ
ABC
23.40602 0.36323 0.35768

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.134 1.312 0.000
C2 0.000 0.183 0.000
O3 -0.196 -1.090 0.000
H4 0.629 -1.559 0.000

Atom - Atom Distances (Å)
  N1 C2 O3 H4
N11.13672.42382.9132
C21.13671.28741.8520
O32.42381.28740.9487
H42.91321.85200.9487

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 178.019 C2 O3 H4 110.921
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.239      
2 C 0.361      
3 O -0.331      
4 H 0.209      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.202 -3.854 0.000 4.037
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.747 -3.298 0.000
y -3.298 -18.581 0.000
z 0.000 0.000 -16.965
Traceless
 xyz
x 2.026 -3.298 0.000
y -3.298 -2.225 0.000
z 0.000 0.000 0.199
Polar
3z2-r20.398
x2-y22.834
xy-3.298
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.421 0.065 0.000
y 0.065 4.228 0.000
z 0.000 0.000 2.281


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000