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

using model chemistry: CCSD=FULL/6-31G(2df,p)

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=FULL/6-31G(2df,p)
 hartrees
Energy at 0K-490.957725
Energy at 298.15K-490.958414
HF Energy-490.411670
Nuclear repulsion energy80.068170
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=FULL/6-31G(2df,p)
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' 3822 3599 355.07      
2 A' 2131 2006 771.09      
3 A' 886 834 14.29      
4 A' 553 520 101.75      
5 A' 414 390 421.22      
6 A" 526 496 0.83      

Unscaled Zero Point Vibrational Energy (zpe) 4165.8 cm-1
Scaled (by 0.9416) Zero Point Vibrational Energy (zpe) 3922.5 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=FULL/6-31G(2df,p)
ABC
44.13468 0.19672 0.19584

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.122 1.681 0.000
C2 0.000 0.496 0.000
S3 0.023 -1.076 0.000
H4 0.481 2.477 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4
N11.19152.76090.9984
C21.19151.57202.0387
S32.76091.57203.5823
H40.99842.03873.5823

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 174.978 C2 N1 H4 136.985
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability