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

using model chemistry: CCD/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 CCD/6-31G**
 hartrees
Energy at 0K-490.817029
Energy at 298.15K-490.817744
HF Energy-490.394465
Nuclear repulsion energy79.646990
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/6-31G**
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' 3812 3574 272.01      
2 A' 2101 1970 822.69      
3 A' 901 844 6.33      
4 A' 618 579 452.52      
5 A' 444 416 132.95      
6 A" 474 445 1.07      

Unscaled Zero Point Vibrational Energy (zpe) 4174.2 cm-1
Scaled (by 0.9376) Zero Point Vibrational Energy (zpe) 3913.8 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 CCD/6-31G**
ABC
36.55968 0.19508 0.19404

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.166 1.690 0.000
C2 0.000 0.496 0.000
S3 0.043 -1.079 0.000
H4 0.478 2.459 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4
N11.20542.77751.0027
C21.20541.57622.0199
S32.77751.57623.5649
H41.00272.01993.5649

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 173.639 C2 N1 H4 132.127
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability