return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
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All results from a given calculation for HSCN (thiocyanic acid)

using model chemistry: HF/SDD

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/SDD
 hartrees
Energy at 0K-490.298944
Energy at 298.15K-490.299631
HF Energy-490.298944
Nuclear repulsion energy77.815869
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/SDD
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' 2666 2400 0.64      
2 A' 2478 2231 15.45      
3 A' 1070 963 23.35      
4 A' 687 619 9.29      
5 A' 384 345 5.83      
6 A" 431 388 1.61      

Unscaled Zero Point Vibrational Energy (zpe) 3857.8 cm-1
Scaled (by 0.9004) Zero Point Vibrational Energy (zpe) 3473.5 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 HF/SDD
ABC
9.65440 0.18791 0.18432

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.082 -1.013 0.000
C2 0.000 0.721 0.000
N3 0.010 1.873 0.000
H4 1.250 -1.240 0.000

Atom - Atom Distances (Å)
  S1 C2 N3 H4
S11.73582.88741.3520
C21.73581.15222.3257
N32.88741.15223.3512
H41.35202.32573.3512

picture of thiocyanic acid state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 N3 177.771 C2 S1 H4 96.954
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/SDD Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.182      
2 C -0.287      
3 N -0.024      
4 H 0.129      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.397 -3.271 0.000 3.557
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.925 -2.326 0.000
y -2.326 -30.449 0.000
z 0.000 0.000 -25.967
Traceless
 xyz
x 5.283 -2.326 0.000
y -2.326 -6.003 0.000
z 0.000 0.000 0.720
Polar
3z2-r21.440
x2-y27.524
xy-2.326
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.151 -0.369 0.000
y -0.369 6.329 0.000
z 0.000 0.000 1.726


<r2> (average value of r2) Å2
<r2> 63.822
(<r2>)1/2 7.989