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

using model chemistry: HF/LANL2DZ

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/LANL2DZ
 hartrees
Energy at 0K-167.665734
Energy at 298.15K-167.666748
Nuclear repulsion energy58.099356
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/LANL2DZ
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' 4032 3628 209.90      
2 A' 2557 2301 150.80      
3 A' 1306 1175 151.53      
4 A' 1125 1013 95.03      
5 A' 514 462 22.83      
6 A" 564 507 10.07      

Unscaled Zero Point Vibrational Energy (zpe) 5048.7 cm-1
Scaled (by 0.8999) Zero Point Vibrational Energy (zpe) 4543.3 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/LANL2DZ
ABC
25.61426 0.35128 0.34653

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/LANL2DZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.060 1.339 0.000
C2 0.000 0.190 0.000
O3 -0.136 -1.111 0.000
H4 0.669 -1.625 0.000

Atom - Atom Distances (Å)
  N1 C2 O3 H4
N11.15082.45723.0259
C21.15081.30721.9341
O32.45721.30720.9555
H43.02591.93410.9555

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 177.006 C2 O3 H4 116.608
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.147      
2 C 0.221      
3 O -0.535      
4 H 0.462      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.925 -3.587 0.000 4.071
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.737 -3.872 0.000
y -3.872 -19.528 0.000
z 0.000 0.000 -16.958
Traceless
 xyz
x 2.506 -3.872 0.000
y -3.872 -3.180 0.000
z 0.000 0.000 0.674
Polar
3z2-r21.348
x2-y23.791
xy-3.872
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.499 -0.091 0.000
y -0.091 4.007 0.000
z 0.000 0.000 1.231


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