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

using model chemistry: LSDA/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 LSDA/6-31G**
 hartrees
Energy at 0K-167.744994
Energy at 298.15K-167.745878
Nuclear repulsion energy57.946213
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 LSDA/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' 3689 3620 141.82      
2 A' 2366 2322 107.08      
3 A' 1171 1150 49.53      
4 A' 1120 1099 128.57      
5 A' 433 425 16.00      
6 A" 487 478 1.90      

Unscaled Zero Point Vibrational Energy (zpe) 4633.5 cm-1
Scaled (by 0.9813) Zero Point Vibrational Energy (zpe) 4546.8 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 LSDA/6-31G**
ABC
22.08388 0.35234 0.34681

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.064 1.343 0.000
C2 0.000 0.173 0.000
O3 -0.147 -1.110 0.000
H4 0.725 -1.557 0.000

Atom - Atom Distances (Å)
  N1 C2 O3 H4
N11.17192.46152.9738
C21.17191.29071.8751
O32.46151.29070.9791
H42.97381.87510.9791

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 176.611 C2 O3 H4 110.647
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.367      
2 C 0.421      
3 O -0.441      
4 H 0.387      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.512 -3.743 0.000 4.037
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.960 -3.119 0.000
y -3.119 -17.683 0.000
z 0.000 0.000 -16.478
Traceless
 xyz
x 2.120 -3.119 0.000
y -3.119 -1.964 0.000
z 0.000 0.000 -0.156
Polar
3z2-r2-0.313
x2-y22.723
xy-3.119
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.687 -0.073 0.000
y -0.073 4.203 0.000
z 0.000 0.000 1.415


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