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

using model chemistry: BLYP/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at BLYP/6-31G
 hartrees
Energy at 0K-168.545946
Energy at 298.15K-168.546685
Nuclear repulsion energy56.493493
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 BLYP/6-31G
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' 3444 3418 55.87      
2 A' 2208 2192 62.32      
3 A' 1181 1172 95.78      
4 A' 975 967 85.02      
5 A' 374 371 16.81      
6 A" 411 408 0.04      

Unscaled Zero Point Vibrational Energy (zpe) 4297.0 cm-1
Scaled (by 0.9924) Zero Point Vibrational Energy (zpe) 4264.4 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 BLYP/6-31G
ABC
22.41300 0.33360 0.32871

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.053 1.377 0.000
C2 0.000 0.187 0.000
O3 -0.058 -1.148 0.000
H4 0.837 -1.577 0.000

Atom - Atom Distances (Å)
  N1 C2 O3 H4
N11.19112.52503.0856
C21.19111.33641.9530
O32.52501.33640.9929
H43.08561.95300.9929

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 174.947 C2 O3 H4 113.126
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.165      
2 C 0.258      
3 O -0.500      
4 H 0.408      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.016 -3.285 0.000 3.854
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.812 -3.225 0.000
y -3.225 -18.741 0.000
z 0.000 0.000 -16.626
Traceless
 xyz
x 2.871 -3.225 0.000
y -3.225 -3.022 0.000
z 0.000 0.000 0.151
Polar
3z2-r20.302
x2-y23.929
xy-3.225
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.626 -0.367 0.000
y -0.367 4.437 0.000
z 0.000 0.000 1.211


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