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

using model chemistry: CCD/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 CCD/6-31+G**
 hartrees
Energy at 0K-490.823794
Energy at 298.15K-490.824489
HF Energy-490.397594
Nuclear repulsion energy79.678460
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/6-31+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' 3800 3581 287.52      
2 A' 2075 1956 969.92      
3 A' 901 849 7.50      
4 A' 603 568 462.43      
5 A' 441 415 122.21      
6 A" 461 434 5.26      

Unscaled Zero Point Vibrational Energy (zpe) 4140.2 cm-1
Scaled (by 0.9423) Zero Point Vibrational Energy (zpe) 3901.3 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/6-31+G**
ABC
37.02474 0.19526 0.19423

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.179 1.688 0.000
C2 0.000 0.494 0.000
S3 0.050 -1.078 0.000
H4 0.452 2.469 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4
N11.20772.77601.0036
C21.20771.57302.0263
S32.77601.57303.5702
H41.00362.02633.5702

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 173.315 C2 N1 H4 132.581
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability