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

using model chemistry: CISD/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CISD/6-311+G(3df,2p)
 hartrees
Energy at 0K-490.925142
Energy at 298.15K-490.925896
HF Energy-490.459989
Nuclear repulsion energy80.387080
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 CISD/6-311+G(3df,2p)
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' 3838 3538 350.81      
2 A' 2115 1949 1031.90      
3 A' 908 837 11.67      
4 A' 594 548 266.93      
5 A' 452 416 278.46      
6 A" 521 480 1.75      

Unscaled Zero Point Vibrational Energy (zpe) 4213.2 cm-1
Scaled (by 0.9218) Zero Point Vibrational Energy (zpe) 3883.8 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 CISD/6-311+G(3df,2p)
ABC
39.87405 0.19853 0.19754

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.123 1.676 0.000
C2 0.000 0.494 0.000
S3 0.022 -1.071 0.000
H4 0.514 2.441 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4
N11.18822.75080.9961
C21.18821.56542.0136
S32.75081.56543.5464
H40.99612.01363.5464

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 174.835 C2 N1 H4 134.211
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability