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

using model chemistry: B3LYP/SDD

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/SDD
 hartrees
Energy at 0K-168.601894
Energy at 298.15K-168.602767
Nuclear repulsion energy56.903833
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 B3LYP/SDD
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' 3672 3530 113.56      
2 A' 2295 2207 96.58      
3 A' 1190 1144 102.30      
4 A' 1020 981 111.07      
5 A' 441 424 19.07      
6 A" 483 465 0.19      

Unscaled Zero Point Vibrational Energy (zpe) 4550.9 cm-1
Scaled (by 0.9613) Zero Point Vibrational Energy (zpe) 4374.8 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 B3LYP/SDD
ABC
23.52365 0.33802 0.33323

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/SDD

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.026 1.369 0.000
C2 0.000 0.185 0.000
O3 -0.076 -1.137 0.000
H4 0.792 -1.597 0.000

Atom - Atom Distances (Å)
  N1 C2 O3 H4
N11.18432.50723.0765
C21.18431.32491.9497
O32.50721.32490.9816
H43.07651.94970.9816

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 175.444 C2 O3 H4 114.594
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/SDD Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.074      
2 C 0.045      
3 O -0.391      
4 H 0.420      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.039 -3.431 0.000 3.991
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.148 -3.480 0.000
y -3.480 -19.062 0.000
z 0.000 0.000 -16.868
Traceless
 xyz
x 2.817 -3.480 0.000
y -3.480 -3.055 0.000
z 0.000 0.000 0.238
Polar
3z2-r20.475
x2-y23.914
xy-3.480
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.680 -0.275 0.000
y -0.275 4.437 0.000
z 0.000 0.000 1.352


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