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

using model chemistry: B3LYP/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 B3LYP/LANL2DZ
 hartrees
Energy at 0K-168.601272
Energy at 298.15K-168.602145
Nuclear repulsion energy56.916635
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/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' 3673 3530 114.12      
2 A' 2297 2208 95.85      
3 A' 1190 1144 101.76      
4 A' 1020 981 111.82      
5 A' 442 425 19.11      
6 A" 484 465 0.18      

Unscaled Zero Point Vibrational Energy (zpe) 4552.7 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 4376.1 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 B3LYP/LANL2DZ
ABC
23.52990 0.33818 0.33338

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/LANL2DZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.027 1.369 0.000
C2 0.000 0.185 0.000
O3 -0.076 -1.137 0.000
H4 0.792 -1.596 0.000

Atom - Atom Distances (Å)
  N1 C2 O3 H4
N11.18382.50663.0759
C21.18381.32471.9496
O32.50661.32470.9815
H43.07591.94960.9815

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 175.437 C2 O3 H4 114.599
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.083      
2 C 0.057      
3 O -0.394      
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
  2.042 -3.429 0.000 3.991
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.144 -3.479 0.000
y -3.479 -19.068 0.000
z 0.000 0.000 -16.866
Traceless
 xyz
x 2.823 -3.479 0.000
y -3.479 -3.063 0.000
z 0.000 0.000 0.240
Polar
3z2-r20.481
x2-y23.924
xy-3.479
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.670 -0.275 0.000
y -0.275 4.429 0.000
z 0.000 0.000 1.341


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