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All results from a given calculation for HNCS (Isothiocyanic acid)

using model chemistry: CCD/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 CCD/6-311G*
 hartrees
Energy at 0K-490.867020
Energy at 298.15K-490.867736
HF Energy-490.432818
Nuclear repulsion energy79.801185
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 CCD/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' 3754 3586 253.53      
2 A' 2086 1993 885.98      
3 A' 896 856 6.78      
4 A' 603 576 454.33      
5 A' 449 429 170.17      
6 A" 480 458 1.80      

Unscaled Zero Point Vibrational Energy (zpe) 4134.0 cm-1
Scaled (by 0.9551) Zero Point Vibrational Energy (zpe) 3948.4 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 CCD/6-311G*
ABC
37.69410 0.19578 0.19476

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.146 1.688 0.000
C2 0.000 0.496 0.000
S3 0.033 -1.078 0.000
H4 0.499 2.456 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4
N11.20002.77131.0037
C21.20001.57482.0226
S32.77131.57483.5652
H41.00372.02263.5652

picture of Isothiocyanic acid state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 S3 174.210 C2 N1 H4 133.028
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability