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

using model chemistry: CCSD/aug-cc-pVDZ

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/aug-cc-pVDZ
 hartrees
Energy at 0K-490.880433
Energy at 298.15K-490.881190
HF Energy-490.427864
Nuclear repulsion energy78.861296
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/aug-cc-pVDZ
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' 3679 3544 219.25      
2 A' 2010 1937 871.54      
3 A' 870 838 1.88      
4 A' 676 652 420.77      
5 A' 447 431 87.21      
6 A" 481 463 3.57      

Unscaled Zero Point Vibrational Energy (zpe) 4081.4 cm-1
Scaled (by 0.9634) Zero Point Vibrational Energy (zpe) 3932.0 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 CCSD/aug-cc-pVDZ
ABC
31.09418 0.19156 0.19038

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.162 1.711 0.000
C2 0.000 0.504 0.000
S3 0.036 -1.089 0.000
H4 0.550 2.431 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4
N11.21762.80711.0131
C21.21761.59382.0045
S32.80711.59383.5581
H41.01312.00453.5581

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 173.671 C2 N1 H4 127.706
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability