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

using model chemistry: QCISD(T)/aug-cc-pVTZ

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(T)/aug-cc-pVTZ
 hartrees
Energy at 0K-491.037146
Energy at 298.15K-491.037886
HF Energy-490.463547
Nuclear repulsion energy79.381064
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(T)/aug-cc-pVTZ
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' 3677 3555        
2 A' 1993 1927        
3 A' 863 834        
4 A' 647 626        
5 A' 448 433        
6 A" 479 463        

Unscaled Zero Point Vibrational Energy (zpe) 4053.4 cm-1
Scaled (by 0.9668) Zero Point Vibrational Energy (zpe) 3918.8 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 QCISD(T)/aug-cc-pVTZ
ABC
33.51388 0.19396 0.19285

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.167 1.698 0.000
C2 0.000 0.498 0.000
S3 0.041 -1.082 0.000
H4 0.510 2.442 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4
N11.21142.78811.0061
C21.21141.58102.0092
S32.78811.58103.5548
H41.00612.00923.5548

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 173.555 C2 N1 H4 129.704
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability