Spectrum Atlas

naphthalene+OH+OH C10H8O2

B_1a70b2bc05 · SMILES Oc1ccc2cc(O)ccc2c1 · InChIKey MNZMMCVIXORAQL-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)

54 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
193.5107.6+14.1
2184.1191.5+7.4
3226.8240.1+13.3
4245.8254.8+9.0
5308.6370.9+62.4
6363.1392.7+29.6
7369.8406.1+36.3
8395.6425.6+30.1
9409.7439.3+29.6
10432.4441.0+8.6
11475.0484.8+9.8
12482.0493.3+11.3
13540.0544.1+4.1
14577.3588.5+11.2
15597.2600.0+2.8
16663.2681.1+17.9
17702.3705.2+2.9
18749.3768.0+18.7
19773.5780.7+7.2
20796.0815.6+19.6
21825.9842.4+16.6
22844.1869.8+25.8
23865.7874.6+8.9
24881.9904.9+23.0
25933.3968.6+35.3
26962.3975.7+13.4
27967.2994.0+26.8
28991.11001.5+10.4
291151.31150.2-1.2
301176.41163.5-12.9
311186.91184.1-2.8
321212.91226.9+14.0
331222.41240.7+18.3
341235.01257.1+22.1
351293.71301.5+7.8
361310.61313.8+3.2
371328.01337.9+9.8
381412.11421.9+9.8
391422.71424.0+1.3
401435.61436.3+0.7
411498.01517.4+19.4
421539.71560.2+20.5
431579.01609.5+30.5
441637.41669.8+32.4
451678.01706.0+27.9
461699.11744.7+45.5
473159.93205.0+45.1
483162.93207.2+44.4
493187.13230.8+43.7
503189.13233.0+43.9
513204.63248.0+43.4
523216.63259.5+42.9
533748.13787.9+39.8
543756.03795.4+39.4

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, 2026-09-28 16:15:40 → 2026-09-28 16:52:55, 2235 s, peak 3.69 GB, deck 9e27bf8e9348
  • Imaginary modes: B3LYP 0, ωB97X 0
  • Source files: corpus factory · manifest