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

using model chemistry: HF/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 HF/TZVP
 hartrees
Energy at 0K-490.444979
Energy at 298.15K-490.445389
HF Energy-490.444979
Nuclear repulsion energy80.351611
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 HF/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' 4032 3664 757.81      
2 A' 2282 2073 1137.75      
3 A' 862 784 56.40      
4 A' 541 492 4.52      
5 A' 188 171 425.61      
6 A" 534 486 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 4219.9 cm-1
Scaled (by 0.9086) Zero Point Vibrational Energy (zpe) 3834.2 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 HF/TZVP
ABC
132.16596 0.19639 0.19610

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.066 1.664 0.000
C2 0.000 0.510 0.000
S3 0.011 -1.081 0.000
H4 0.283 2.583 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4
N11.15562.74520.9834
C21.15561.59052.0924
S32.74521.59053.6737
H40.98342.09243.6737

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 177.137 C2 N1 H4 155.945
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.318      
2 C 0.238      
3 S -0.220      
4 H 0.299      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.757 3.332 0.000 3.417
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.490 2.038 0.000
y 2.038 -17.363 0.000
z 0.000 0.000 -25.740
Traceless
 xyz
x -3.938 2.038 0.000
y 2.038 8.252 0.000
z 0.000 0.000 -4.313
Polar
3z2-r2-8.627
x2-y2-8.127
xy2.038
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.637 -0.155 0.000
y -0.155 8.790 0.000
z 0.000 0.000 2.592


<r2> (average value of r2) Å2
<r2> 60.680
(<r2>)1/2 7.790