Spectrum Atlas

furan+CH3 C5H6O

B_29ee41c012 · SMILES Cc1ccco1 · InChIKey VQKFNUFAXTZWDK-UHFFFAOYSA-N

Cheap level done

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

30 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
1128.2115.8-12.5
2241.4253.0+11.6
3335.9338.3+2.4
4613.8628.6+14.8
5638.6656.9+18.2
6659.5666.4+6.9
7730.8761.5+30.7
8805.6833.0+27.4
9858.7893.0+34.4
10902.0906.2+4.3
11943.4951.1+7.7
121002.01005.9+3.9
131046.31053.5+7.2
141081.61087.2+5.7
151124.21134.8+10.6
161186.81191.9+5.1
171252.71268.9+16.2
181269.41279.8+10.4
191429.01444.5+15.4
201446.31456.8+10.5
211503.71505.7+2.1
221519.61531.9+12.3
231561.31582.7+21.5
241657.91685.0+27.1
253043.73079.4+35.7
263092.93144.7+51.8
273139.23184.8+45.6
283259.83299.9+40.2
293271.63311.9+40.3
303300.83340.2+39.4

Provenance

  • Releases: none yet
  • Entered the corpus as: cores with one or two substituents, enumerated from the parents (layer B)
  • Run: ubuntu-32gb-hel1-2, 2026-10-05 21:08:46 → 2026-10-05 21:16:38, 471 s, peak 1.34 GB, deck 9e27bf8e9348
  • Imaginary modes: B3LYP 0, ωB97X 0
  • Source files: corpus factory · manifest