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

using model chemistry: B2PLYP=FULL/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 B2PLYP=FULL/TZVP
 hartrees
Energy at 0K-491.468907
Energy at 298.15K-491.469638
HF Energy-491.300504
Nuclear repulsion energy79.625711
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 B2PLYP=FULL/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' 3716 3546 275.80      
2 A' 2046 1952 670.21      
3 A' 871 831 2.99      
4 A' 617 589 363.73      
5 A' 456 435 85.24      
6 A" 481 459 3.91      

Unscaled Zero Point Vibrational Energy (zpe) 4093.3 cm-1
Scaled (by 0.9542) Zero Point Vibrational Energy (zpe) 3905.8 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 B2PLYP=FULL/TZVP
ABC
39.59674 0.19477 0.19382

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.146 1.691 0.000
C2 0.000 0.497 0.000
S3 0.034 -1.081 0.000
H4 0.480 2.474 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4
N11.20232.77731.0032
C21.20231.57852.0345
S32.77731.57853.5830
H41.00322.03453.5830

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 174.245 C2 N1 H4 134.377
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability