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

using model chemistry: mPW1PW91/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/3-21G*
 hartrees
Energy at 0K-489.218383
Energy at 298.15K-489.219158
HF Energy-489.218383
Nuclear repulsion energy78.769135
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 mPW1PW91/3-21G*
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' 2715 2578 0.22      
2 A' 2300 2184 9.56      
3 A' 1037 985 14.69      
4 A' 723 686 0.53      
5 A' 423 401 3.35      
6 A" 473 449 0.91      

Unscaled Zero Point Vibrational Energy (zpe) 3835.1 cm-1
Scaled (by 0.9496) Zero Point Vibrational Energy (zpe) 3641.8 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 mPW1PW91/3-21G*
ABC
9.66263 0.19372 0.18991

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.081 -0.996 0.000
C2 0.000 0.689 0.000
N3 0.005 1.856 0.000
H4 1.252 -1.188 0.000

Atom - Atom Distances (Å)
  S1 C2 N3 H4
S11.68622.85261.3466
C21.68621.16702.2561
N32.85261.16703.2892
H41.34662.25613.2892

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 177.516 C2 S1 H4 95.472
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.165      
2 C 0.069      
3 N -0.419      
4 H 0.185      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.085 -2.907 0.000 3.103
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.925 -1.854 0.000
y -1.854 -28.275 0.000
z 0.000 0.000 -25.350
Traceless
 xyz
x 4.887 -1.854 0.000
y -1.854 -4.637 0.000
z 0.000 0.000 -0.250
Polar
3z2-r2-0.500
x2-y26.350
xy-1.854
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.993 -0.243 0.000
y -0.243 6.132 0.000
z 0.000 0.000 2.115


<r2> (average value of r2) Å2
<r2> 61.624
(<r2>)1/2 7.850