Spectrum Atlas

naphthalene+OH+CHO C11H8O2

B_012aa0a84c · SMILES O=Cc1ccc2cccc(O)c2c1 · InChIKey CLQIYERERYTRGT-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)

57 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
155.488.5+33.0
294.4134.4+40.0
3166.3176.6+10.3
4191.4212.2+20.9
5202.3246.9+44.6
6239.0278.2+39.2
7303.8316.4+12.7
8317.8323.5+5.8
9379.1382.9+3.9
10431.7441.0+9.3
11477.0484.4+7.4
12508.0520.5+12.5
13529.8536.7+6.9
14538.5542.5+4.0
15574.8585.9+11.1
16639.5644.3+4.8
17661.3678.7+17.4
18733.5740.9+7.4
19756.8767.4+10.5
20776.9784.5+7.6
21795.6807.2+11.6
22847.0864.3+17.3
23866.0881.5+15.5
24874.2886.7+12.5
25896.5922.5+26.0
26933.9943.6+9.7
27975.11000.7+25.6
28993.11021.9+28.8
291027.21047.0+19.8
301065.61075.8+10.2
311108.01117.9+9.9
321174.71167.2-7.5
331190.21192.8+2.6
341213.61217.9+4.3
351235.61247.5+12.0
361259.01268.9+9.9
371308.41312.1+3.7
381326.81332.7+5.9
391388.01396.2+8.2
401413.51419.4+5.9
411440.61441.2+0.7
421443.51449.0+5.4
431498.21515.4+17.2
441511.41529.9+18.5
451564.41593.8+29.4
461631.91664.2+32.3
471659.01686.4+27.5
481686.51731.9+45.3
491795.51830.2+34.6
502897.32948.7+51.4
513142.93191.3+48.4
523188.33232.0+43.7
533191.53233.7+42.2
543206.53249.0+42.5
553222.23264.6+42.4
563224.13267.1+43.0
573776.43816.2+39.8

Second route

Analytic Hessian (pyscf, grid 99/590) against the corpus finite differences: b3lyp max |Δω| 1 cm⁻¹; wb97x max |Δω| 6 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-hel1-21, 2026-09-27 11:09:22 → 2026-09-27 12:03:28, 3245 s, peak 4.18 GB, deck 9e27bf8e9348
  • Imaginary modes: B3LYP 0, ωB97X 0
  • Source files: corpus factory · manifest