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

using model chemistry: CCSD(T)=FULL/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 CCSD(T)=FULL/TZVP
 hartrees
Energy at 0K-490.977979
Energy at 298.15K-490.978680
HF Energy-490.441766
Nuclear repulsion energy79.411484
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 CCSD(T)=FULL/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' 3704 3541        
2 A' 2027 1938        
3 A' 864 826        
4 A' 609 582        
5 A' 443 424        
6 A" 466 445        

Unscaled Zero Point Vibrational Energy (zpe) 4055.7 cm-1
Scaled (by 0.956) Zero Point Vibrational Energy (zpe) 3877.3 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 CCSD(T)=FULL/TZVP
ABC
35.76142 0.19395 0.19290

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)=FULL/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.165 1.695 0.000
C2 0.000 0.499 0.000
S3 0.042 -1.083 0.000
H4 0.488 2.460 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4
N11.20772.78571.0056
C21.20771.58222.0208
S32.78571.58223.5707
H41.00562.02083.5707

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 173.645 C2 N1 H4 131.640
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability