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

using model chemistry: B3LYP/6-311G*

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/6-311G*
 hartrees
Energy at 0K-168.680410
Energy at 298.15K-168.681340
Nuclear repulsion energy58.210226
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/6-311G*
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' 3737 3611 106.70      
2 A' 2385 2304 118.27      
3 A' 1258 1215 120.48      
4 A' 1100 1063 66.97      
5 A' 453 437 16.83      
6 A" 515 498 4.14      

Unscaled Zero Point Vibrational Energy (zpe) 4723.6 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 4564.4 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 B3LYP/6-311G*
ABC
22.72537 0.35470 0.34925

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.072 1.334 0.000
C2 0.000 0.181 0.000
O3 -0.151 -1.108 0.000
H4 0.705 -1.560 0.000

Atom - Atom Distances (Å)
  N1 C2 O3 H4
N11.15552.45212.9625
C21.15551.29741.8781
O32.45211.29740.9681
H42.96251.87810.9681

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 176.884 C2 O3 H4 111.157
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.290      
2 C 0.310      
3 O -0.463      
4 H 0.443      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.570 -3.683 0.000 4.004
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.246 -3.284 0.000
y -3.284 -18.281 0.000
z 0.000 0.000 -16.685
Traceless
 xyz
x 2.237 -3.284 0.000
y -3.284 -2.315 0.000
z 0.000 0.000 0.078
Polar
3z2-r20.156
x2-y23.035
xy-3.284
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.773 -0.052 0.000
y -0.052 4.127 0.000
z 0.000 0.000 1.522


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