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

using model chemistry: MP2/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/6-31G**
 hartrees
Energy at 0K-490.810619
Energy at 298.15K-490.811360
HF Energy-490.392966
Nuclear repulsion energy79.430961
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 MP2/6-31G**
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' 3789 3548 272.33      
2 A' 2069 1938 595.09      
3 A' 905 847 1.80      
4 A' 661 619 444.16      
5 A' 453 424 60.21      
6 A" 468 438 5.20      

Unscaled Zero Point Vibrational Energy (zpe) 4172.0 cm-1
Scaled (by 0.9365) Zero Point Vibrational Energy (zpe) 3907.1 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 MP2/6-31G**
ABC
36.94361 0.19407 0.19305

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.203 1.692 0.000
C2 0.000 0.492 0.000
S3 0.063 -1.080 0.000
H4 0.411 2.487 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4
N11.21722.78521.0044
C21.21721.57362.0370
S32.78521.57363.5844
H41.00442.03703.5844

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 172.694 C2 N1 H4 132.722
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability