return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: PBEPBE/6-31G(2df,p)

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(2df,p)
 hartrees
Energy at 0K-491.329810
Energy at 298.15K-491.330416
HF Energy-491.329810
Nuclear repulsion energy78.331334
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(2df,p)
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' 2608 2581 1.97      
2 A' 2206 2183 15.71      
3 A' 938 928 6.39      
4 A' 695 688 0.02      
5 A' 341 338 3.72      
6 A" 407 403 0.86      

Unscaled Zero Point Vibrational Energy (zpe) 3596.8 cm-1
Scaled (by 0.9897) Zero Point Vibrational Energy (zpe) 3559.8 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 PBEPBE/6-31G(2df,p)
ABC
9.45924 0.19179 0.18798

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.071 -1.001 0.000
C2 0.000 0.691 0.000
N3 -0.021 1.865 0.000
H4 1.277 -1.180 0.000

Atom - Atom Distances (Å)
  S1 C2 N3 H4
S11.69392.86721.3597
C21.69391.17462.2654
N32.86721.17463.3106
H41.35972.26543.3106

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 176.591 C2 S1 H4 95.160
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.114      
2 C 0.199      
3 N -0.297      
4 H 0.212      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.968 -3.129 0.000 3.275
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.545 -1.509 0.000
y -1.509 -27.860 0.000
z 0.000 0.000 -25.030
Traceless
 xyz
x 4.900 -1.509 0.000
y -1.509 -4.572 0.000
z 0.000 0.000 -0.328
Polar
3z2-r2-0.655
x2-y26.315
xy-1.509
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.619 -0.234 0.000
y -0.234 7.184 0.000
z 0.000 0.000 3.162


<r2> (average value of r2) Å2
<r2> 61.871
(<r2>)1/2 7.866