Spectrum Atlas

naphthalene+ C10H8

P3c_01f3186607 · SMILES c1ccc2ccccc2c1 · InChIKey UFWIBTONFRDIAS-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)

48 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
1158.1166.4+8.4
2183.9198.5+14.6
3357.2359.4+2.2
4377.1383.9+6.8
5428.2428.8+0.6
6441.3452.2+10.9
7472.7453.2-19.5
8515.5518.0+2.5
9563.0573.4+10.4
10609.1601.6-7.4
11741.7745.7+4.0
12755.0762.6+7.6
13777.4784.2+6.8
14779.5792.4+12.9
15808.8812.7+3.9
16877.2891.8+14.6
17941.0945.3+4.3
18941.3954.5+13.2
19977.5998.4+20.9
201001.31022.2+20.9
211023.01049.4+26.4
221027.91051.2+23.3
231045.41054.4+9.0
241073.91082.4+8.6
251127.31123.8-3.5
261129.31134.4+5.1
271200.51188.5-12.0
281212.01211.3-0.7
291247.11230.6-16.6
301267.31254.0-13.2
311312.91319.0+6.1
321421.01417.6-3.4
331431.61441.1+9.5
341443.21448.0+4.8
351479.61476.7-3.0
361516.01493.7-22.3
371520.81523.1+2.3
381563.71586.1+22.4
391583.51588.0+4.6
401636.61669.4+32.8
413211.03251.3+40.3
423213.03251.7+38.6
433213.43253.7+40.3
443215.33254.5+39.2
453228.53267.6+39.1
463228.63267.7+39.1
473238.73277.8+39.1
483238.83277.9+39.1

Second route

Analytic Hessian (pyscf, grid 99/590) against the corpus finite differences: b3lyp max |Δω| 0 cm⁻¹; wb97x max |Δω| 4 cm⁻¹.

Provenance

  • Releases: none yet
  • Entered the corpus as: pool 3, chosen by rule (decision 54): cations of finished parents (layer P3c)
  • Run: ubuntu-32gb-hel1-2, 2026-10-08 04:43:53 → 2026-10-08 05:31:10, 2836 s, peak 2.69 GB, deck 37f37863836d
  • Imaginary modes: B3LYP 0, ωB97X 0
  • Source files: corpus factory · manifest