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

using model chemistry: PBEPBE/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 PBEPBE/6-31G**
 hartrees
Energy at 0K-491.346459
Energy at 298.15K-491.347186
HF Energy-491.346459
Nuclear repulsion energy79.028000
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 PBEPBE/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' 3615 3566 177.06      
2 A' 2025 1997 528.29      
3 A' 866 854 1.36      
4 A' 678 669 327.48      
5 A' 442 436 44.72      
6 A" 465 458 2.37      

Unscaled Zero Point Vibrational Energy (zpe) 4044.9 cm-1
Scaled (by 0.9863) Zero Point Vibrational Energy (zpe) 3989.5 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 PBEPBE/6-31G**
ABC
32.88705 0.19235 0.19123

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.180 1.704 0.000
C2 0.000 0.498 0.000
S3 0.048 -1.086 0.000
H4 0.497 2.460 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4
N11.21952.79981.0150
C21.21951.58512.0244
S32.79981.58513.5751
H41.01502.02443.5751

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 173.242 C2 N1 H4 129.678
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.496      
2 C 0.239      
3 S -0.048      
4 H 0.305      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.170 1.814 0.000 2.159
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.119 3.065 0.000
y 3.065 -19.171 0.000
z 0.000 0.000 -24.906
Traceless
 xyz
x -2.080 3.065 0.000
y 3.065 5.341 0.000
z 0.000 0.000 -3.261
Polar
3z2-r2-6.522
x2-y2-4.947
xy3.065
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.548 -0.241 0.000
y -0.241 8.890 0.000
z 0.000 0.000 2.331


<r2> (average value of r2) Å2
<r2> 61.463
(<r2>)1/2 7.840