Spectrum Atlas

2-naphthylamine C10H9N

A_519351d19c · SMILES Nc1ccc2ccccc2c1 · InChIKey JBIJLHTVPXGSAM-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
1122.4133.7+11.3
2183.7194.0+10.2
3280.7288.2+7.5
4293.8304.6+10.7
5301.8322.6+20.8
6407.8420.3+12.5
7422.6427.7+5.1
8465.4469.3+3.8
9483.6489.9+6.3
10530.0534.0+4.0
11538.8551.6+12.8
12615.2629.4+14.2
13638.6643.0+4.4
14664.2677.4+13.1
15735.1739.8+4.6
16761.3773.4+12.0
17770.2785.0+14.8
18783.3790.9+7.7
19821.4839.2+17.9
20849.3868.2+18.9
21882.4902.5+20.0
22915.0922.3+7.2
23942.5974.8+32.3
24954.8982.2+27.4
25974.1988.8+14.7
26982.01013.5+31.5
271051.11059.1+8.0
281128.21133.6+5.4
291156.01160.5+4.6
301186.21170.0-16.2
311190.51190.2-0.3
321222.51219.8-2.7
331264.01264.5+0.6
341298.41303.9+5.5
351326.11326.8+0.7
361412.11405.8-6.3
371421.51426.8+5.3
381431.31431.2-0.1
391500.31514.8+14.5
401525.31540.1+14.8
411570.21597.3+27.1
421628.61660.2+31.6
431665.41690.0+24.6
441686.01712.3+26.2
451699.11737.1+38.0
463166.63211.7+45.1
473170.93215.3+44.4
483172.83216.4+43.6
493176.93220.8+43.9
503190.23234.1+43.9
513191.63235.1+43.5
523205.93248.9+43.0
533546.63595.1+48.5
543645.33695.2+49.9

Second route

Analytic Hessian (pyscf, grid 99/590) against the corpus finite differences: b3lyp max |Δω| 1 cm⁻¹; wb97x max |Δω| 8 cm⁻¹.

Provenance

  • Releases: layerA2_2026-09-23, layerA2_2026-09-23b, layerA2_2026-09-24, layerA_2026-09-22
  • Entered the corpus as: parent molecules chosen by hand (benzene, naphthalene, the PAH cores and their relatives) (layer A)
  • Run: ubuntu-32gb-hel1-2, 2026-09-18 11:56:54 → 2026-09-18 12:27:47, 1853 s, peak 3.43 GB, deck 97ed2d67c66b
  • Imaginary modes: B3LYP 0, ωB97X 0
  • Source files: corpus factory · manifest