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 SCN (thiocyanato radical)

using model chemistry: MP2/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C*V 2Π
Energy calculated at MP2/3-21G
 hartrees
Energy at 0K-487.555752
Energy at 298.15K-487.555502
Nuclear repulsion energy68.845206
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 MP2/3-21G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Σ 2935 2802 21.23      
2 Σ 644 615 26.30      
3 Π 520 497 2.39      
3 Π 500 478 3.42      

Unscaled Zero Point Vibrational Energy (zpe) 2300.0 cm-1
Scaled (by 0.9545) Zero Point Vibrational Energy (zpe) 2195.3 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 MP2/3-21G
B
0.18950

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.690
S2 0.000 0.000 1.062
N3 0.000 0.000 -1.836

Atom - Atom Distances (Å)
  C1 S2 N3
C11.75161.1463
S21.75162.8978
N31.14632.8978

picture of thiocyanato radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S2 C1 N3 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability