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

using model chemistry: MP3/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP3/TZVP
 hartrees
Energy at 0K-490.883520
Energy at 298.15K-490.884210
HF Energy-490.443430
Nuclear repulsion energy79.972526
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 MP3/TZVP
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' 3799 3553 312.50      
2 A' 2112 1975 930.23      
3 A' 895 837 8.70      
4 A' 558 522 318.76      
5 A' 441 412 252.92      
6 A" 482 451 2.66      

Unscaled Zero Point Vibrational Energy (zpe) 4143.3 cm-1
Scaled (by 0.9352) Zero Point Vibrational Energy (zpe) 3874.8 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 MP3/TZVP
ABC
40.04027 0.19644 0.19548

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.138 1.683 0.000
C2 0.000 0.498 0.000
S3 0.030 -1.077 0.000
H4 0.489 2.461 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4
N11.19302.76470.9994
C21.19301.57492.0230
S32.76471.57493.5673
H40.99942.02303.5673

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 174.429 C2 N1 H4 134.465
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability