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

using model chemistry: QCISD/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at QCISD/Def2TZVPP
 hartrees
Energy at 0K-490.994843
Energy at 298.15K-490.995603
HF Energy-490.461740
Nuclear repulsion energy79.866637
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 QCISD/Def2TZVPP
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' 3730 3730 249.93      
2 A' 2040 2040 789.31      
3 A' 880 880 4.22      
4 A' 638 638 370.74      
5 A' 460 460 130.52      
6 A" 501 501 2.07      

Unscaled Zero Point Vibrational Energy (zpe) 4124.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4124.0 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 QCISD/Def2TZVPP
ABC
34.34718 0.19630 0.19519

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.141 1.690 0.000
C2 0.000 0.495 0.000
S3 0.028 -1.076 0.000
H4 0.543 2.422 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4
N11.20242.77101.0021
C21.20241.57202.0014
S32.77101.57203.5358
H41.00212.00143.5358

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 174.282 C2 N1 H4 130.210
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability