Spectrum Atlas

quinoline+ethynyl C11H7N

B_1eccc74737 · SMILES C#Cc1ccc2ccccc2n1 · InChIKey KLJNCYLWOJPRSX-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)

51 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
188.5108.0+19.6
2135.6157.6+22.0
3176.0184.8+8.8
4227.1246.5+19.4
5363.9375.8+11.9
6397.4412.8+15.4
7416.3420.4+4.0
8427.4442.1+14.7
9491.1502.6+11.5
10529.7534.2+4.5
11560.9571.6+10.7
12564.2579.8+15.5
13599.1638.4+39.3
14634.1676.7+42.6
15634.8684.9+50.1
16683.6695.2+11.7
17700.4713.8+13.4
18774.4786.5+12.2
19781.8791.6+9.7
20801.9821.3+19.5
21851.1866.5+15.4
22891.9910.2+18.3
23906.4914.4+8.0
24963.8981.1+17.3
25971.7997.5+25.8
26990.31019.1+28.8
271000.11027.3+27.2
281046.31057.4+11.1
291146.71142.0-4.6
301176.61170.7-5.9
311182.91180.1-2.8
321233.71237.3+3.6
331255.61257.1+1.5
341291.01299.0+8.0
351345.21358.8+13.6
361378.31376.9-1.4
371412.31421.0+8.7
381468.71483.0+14.3
391508.91525.8+16.9
401552.01578.8+26.8
411600.91635.8+34.9
421650.11682.8+32.8
431675.21719.3+44.2
442229.62266.2+36.6
453180.03223.8+43.8
463186.83230.4+43.6
473193.03235.7+42.7
483207.43249.9+42.5
493221.73264.2+42.5
503222.63265.8+43.2
513494.23528.6+34.4

Second route

Analytic Hessian (pyscf, grid 99/590) against the corpus finite differences: b3lyp max |Δω| 0 cm⁻¹; wb97x max |Δω| 11 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-hel1-16, 2026-09-28 08:28:53 → 2026-09-28 09:03:41, 2088 s, peak 3.46 GB, deck 9e27bf8e9348
  • Imaginary modes: B3LYP 0, ωB97X 0
  • Source files: corpus factory · manifest