Spectrum Atlas

naphthalene+F+ethynyl C12H7F

B_0bba7a14db · SMILES C#Cc1ccc2ccc(F)cc2c1 · InChIKey BETNKCPYYBKOMO-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
185.192.6+7.5
2125.5139.8+14.3
3135.3146.8+11.5
4224.7235.1+10.4
5286.4295.6+9.2
6310.3323.4+13.1
7390.5393.6+3.1
8396.1408.3+12.2
9423.7430.8+7.1
10467.5475.4+7.9
11471.1479.1+8.0
12488.6494.2+5.6
13547.9559.7+11.8
14563.4627.1+63.7
15615.3629.1+13.8
16629.1649.3+20.2
17647.2671.2+24.0
18657.8672.5+14.7
19678.0683.5+5.5
20757.9773.1+15.1
21777.9784.3+6.4
22787.1795.4+8.3
23807.7822.0+14.3
24855.3872.2+16.9
25861.3877.8+16.5
26912.6933.6+21.0
27954.8982.9+28.0
28970.5983.4+12.9
29975.51003.1+27.6
30994.31004.0+9.7
311148.11149.2+1.2
321179.91164.5-15.5
331184.31193.0+8.7
341213.41220.9+7.5
351252.01246.3-5.7
361287.51290.5+3.0
371297.71302.8+5.1
381363.61372.2+8.6
391413.61408.7-4.9
401424.51425.3+0.8
411465.81489.5+23.7
421508.51525.2+16.7
431561.91589.9+27.9
441622.81653.8+30.9
451661.71692.8+31.1
461688.51735.6+47.1
472225.12263.8+38.6
483185.63229.3+43.7
493192.63235.5+42.9
503204.23247.5+43.3
513216.73259.0+42.3
523218.23260.8+42.6
533225.33267.3+42.0
543494.73529.1+34.4

Second route

Analytic Hessian (pyscf, grid 99/590) against the corpus finite differences: b3lyp max |Δω| 4 cm⁻¹; wb97x max |Δω| 9 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-hel1-18, 2026-09-26 07:01:01 → 2026-09-26 07:41:55, 2454 s, peak 3.86 GB, deck 9e27bf8e9348
  • Imaginary modes: B3LYP 0, ωB97X 0
  • Source files: corpus factory · manifest