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All results from a given calculation for HSCN (thiocyanic acid)

using model chemistry: HF/CEP-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 HF/CEP-31G
 hartrees
Energy at 0K-25.565056
Energy at 298.15K-25.565727
HF Energy-25.565056
Nuclear repulsion energy25.795352
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/CEP-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' 2706 2439 8.13      
2 A' 2462 2219 14.36      
3 A' 1061 956 28.87      
4 A' 695 627 11.52      
5 A' 374 337 5.97      
6 A" 421 379 2.95      

Unscaled Zero Point Vibrational Energy (zpe) 3858.8 cm-1
Scaled (by 0.9014) Zero Point Vibrational Energy (zpe) 3478.3 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/CEP-31G
ABC
9.48556 0.18384 0.18035

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.084 -1.025 0.000
C2 0.000 0.731 0.000
N3 0.013 1.893 0.000
H4 1.260 -1.239 0.000

Atom - Atom Distances (Å)
  S1 C2 N3 H4
S11.75772.91911.3616
C21.75771.16182.3385
N32.91911.16183.3709
H41.36162.33853.3709

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 177.882 C2 S1 H4 96.297
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.191      
2 C -0.571      
3 N 0.313      
4 H 0.068      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.454 -3.365 0.000 3.666
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.897 -2.442 0.000
y -2.442 -29.821 0.000
z 0.000 0.000 -25.215
Traceless
 xyz
x 5.621 -2.442 0.000
y -2.442 -6.265 0.000
z 0.000 0.000 0.644
Polar
3z2-r21.288
x2-y27.924
xy-2.442
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.111 -0.293 0.000
y -0.293 6.541 0.000
z 0.000 0.000 1.618


<r2> (average value of r2) Å2
<r2> 45.533
(<r2>)1/2 6.748