Spectrum Atlas

pyridine+OH+SH C5H5NOS

B_1216dad3c6 · SMILES Oc1ccc(S)cn1 · InChIKey WKNNWBDELJBZHF-UHFFFAOYSA-N

Cheap level done analytic check agrees

Harmonic frequencies at the cheap level (deck v1: B3LYP and ωB97X, 6-31G*, at the B3LYP geometry)

33 vibrational modes; imaginary modes negative. Shift = ωB97X − B3LYP.

0500100015002000250030003500 wavenumber (cm⁻¹) 3 µm4 µm5 µm6 µm8 µm10 µm15 µm25 µm B3LYP ωB97X 0500100015002000250030003500 wavenumber (cm⁻¹) 3 µm4 µm5 µm6 µm8 µm10 µm15 µm25 µm B3LYP ωB97X 0100020003000 wavenumber (cm⁻¹) 3 µm5 µm10 µm20 µm B3LYP ωB97X

Band heights are not computed for this molecule yet (no dipole derivatives); positions only, at unit height. High wavenumbers on the left; the table below is the same data.

#B3LYP (cm⁻¹)ωB97X (cm⁻¹)shift
1112.1135.9+23.8
2123.6260.0+136.4
3253.7274.7+21.0
4299.6321.8+22.3
5382.7387.5+4.8
6433.3447.4+14.0
7438.6451.8+13.2
8505.3530.6+25.4
9572.4614.9+42.6
10653.9658.8+4.9
11666.1675.6+9.5
12756.0779.7+23.6
13841.4863.0+21.7
14872.5882.1+9.5
15929.5955.2+25.7
16967.0993.9+26.9
17988.91016.9+27.9
181029.71040.3+10.6
191132.51152.8+20.3
201150.51155.9+5.4
211202.81213.8+11.0
221319.01295.6-23.3
231343.81354.0+10.2
241371.81375.6+3.8
251440.81462.6+21.8
261525.21543.7+18.5
271631.21668.6+37.4
281653.61691.0+37.4
292640.52689.4+48.9
303195.13238.1+43.1
313211.53254.1+42.6
323231.43274.4+43.0
333694.93735.0+40.1

Second route

Analytic Hessian (pyscf, grid 99/590) against the corpus finite differences: b3lyp max |Δω| 1 cm⁻¹; wb97x max |Δω| 12 cm⁻¹.

Provenance

  • Releases: none yet
  • Entered the corpus as: cores with one or two substituents, enumerated from the parents (layer B)
  • Run: ubuntu-32gb-hel1-16, 2026-09-26 23:51:42 → 2026-09-27 00:02:36, 653 s, peak 1.97 GB, deck 9e27bf8e9348
  • Imaginary modes: B3LYP 0, ωB97X 0
  • Source files: corpus factory · manifest