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

using model chemistry: CCD/TZVP

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/TZVP
 hartrees
Energy at 0K-490.883948
Energy at 298.15K-490.884626
HF Energy-490.443256
Nuclear repulsion energy79.853021
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/TZVP
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' 3774 3578 314.09      
2 A' 2094 1985 909.85      
3 A' 886 840 9.70      
4 A' 552 523 308.39      
5 A' 438 415 273.10      
6 A" 480 455 2.57      

Unscaled Zero Point Vibrational Energy (zpe) 4111.7 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 3897.9 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/TZVP
ABC
40.60353 0.19582 0.19488

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.138 1.685 0.000
C2 0.000 0.498 0.000
S3 0.030 -1.078 0.000
H4 0.485 2.469 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4
N11.19472.76861.0012
C21.19471.57712.0295
S32.76861.57713.5767
H41.00122.02953.5767

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 174.466 C2 N1 H4 134.933
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability