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

using model chemistry: TPSSh/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at TPSSh/6-31+G**
 hartrees
Energy at 0K-168.645830
Energy at 298.15K-168.646732
HF Energy-168.645830
Nuclear repulsion energy57.755125
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 TPSSh/6-31+G**
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' 3744 3603 143.20      
2 A' 2351 2263 132.18      
3 A' 1217 1172 89.09      
4 A' 1092 1051 79.64      
5 A' 441 424 15.00      
6 A" 499 480 0.91      

Unscaled Zero Point Vibrational Energy (zpe) 4671.6 cm-1
Scaled (by 0.9625) Zero Point Vibrational Energy (zpe) 4496.4 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 TPSSh/6-31+G**
ABC
22.35477 0.34925 0.34388

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.222 1.326 0.000
C2 0.000 0.181 0.000
O3 0.070 -1.119 0.000
H4 0.993 -1.422 0.000

Atom - Atom Distances (Å)
  N1 C2 O3 H4
N11.16592.46203.0044
C21.16591.30191.8857
O32.46201.30190.9711
H43.00441.88570.9711

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 172.111 C2 O3 H4 111.289
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.320      
2 C 0.442      
3 O -0.517      
4 H 0.394      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.636 -3.649 0.000 3.999
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.079 -0.108 0.000
y -0.108 4.799 0.000
z 0.000 0.000 1.923


<r2> (average value of r2) Å2
<r2> 36.628
(<r2>)1/2 6.052