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

using model chemistry: HSEh1PBE/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HSEh1PBE/cc-pVTZ
 hartrees
Energy at 0K-168.530226
Energy at 298.15K-168.531188
HF Energy-168.530226
Nuclear repulsion energy58.438669
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 HSEh1PBE/cc-pVTZ
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' 3808 3660 159.56      
2 A' 2411 2317 132.25      
3 A' 1252 1203 92.75      
4 A' 1123 1080 75.21      
5 A' 469 451 14.73      
6 A" 528 507 3.85      

Unscaled Zero Point Vibrational Energy (zpe) 4795.6 cm-1
Scaled (by 0.9611) Zero Point Vibrational Energy (zpe) 4609.1 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 HSEh1PBE/cc-pVTZ
ABC
22.67027 0.35767 0.35211

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.155 1.320 0.000
C2 0.000 0.180 0.000
O3 0.020 -1.111 0.000
H4 0.926 -1.436 0.000

Atom - Atom Distances (Å)
  N1 C2 O3 H4
N11.15082.43742.9611
C21.15081.29091.8630
O32.43741.29090.9635
H42.96111.86300.9635

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 173.142 C2 O3 H4 110.623
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.139      
2 C 0.067      
3 O -0.176      
4 H 0.249      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.355 -3.750 0.000 3.987
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.225 -2.987 0.000
y -2.987 -18.177 0.000
z 0.000 0.000 -16.701
Traceless
 xyz
x 2.214 -2.987 0.000
y -2.987 -2.214 0.000
z 0.000 0.000 -0.000
Polar
3z2-r2-0.000
x2-y22.952
xy-2.987
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.157 -0.041 0.000
y -0.041 4.290 0.000
z 0.000 0.000 1.964


<r2> (average value of r2) Å2
<r2> 35.835
(<r2>)1/2 5.986