Spectrum Atlas

naphthalene+Cl+CN C11H6ClN

B_090068f97e · SMILES N#Cc1ccc2cc(Cl)ccc2c1 · InChIKey VIJMEUNAVBOWBY-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
160.173.9+13.8
2122.2140.6+18.4
3153.7172.7+19.1
4183.3188.8+5.4
5222.8233.6+10.7
6290.9310.1+19.2
7322.6327.3+4.7
8402.4412.9+10.5
9403.8416.1+12.3
10472.7489.1+16.4
11489.0494.3+5.3
12489.5499.2+9.7
13525.5529.7+4.3
14574.0588.7+14.7
15580.4593.8+13.5
16666.5670.6+4.1
17667.5683.9+16.4
18727.2734.9+7.6
19769.0786.2+17.2
20812.4821.9+9.6
21822.8835.4+12.6
22831.3844.8+13.4
23900.2922.8+22.6
24916.6927.0+10.3
25919.7944.9+25.2
26972.0988.6+16.7
27977.9999.8+22.0
28979.11005.5+26.4
291102.21117.0+14.7
301161.71160.8-0.8
311188.01183.1-4.9
321196.01194.0-2.0
331233.91226.0-7.9
341283.91288.7+4.8
351299.41307.1+7.7
361373.41381.3+7.9
371411.01398.2-12.8
381417.11422.1+4.9
391444.81464.8+20.0
401512.11529.0+16.9
411543.81571.9+28.1
421615.11646.8+31.6
431648.11678.8+30.7
441678.31727.8+49.5
452347.52387.6+40.1
463195.73238.4+42.8
473196.03238.7+42.8
483209.03251.5+42.5
493216.43259.1+42.6
503223.83265.5+41.7
513229.93271.9+42.0

Second route

Analytic Hessian (pyscf, grid 99/590) against the corpus finite differences: b3lyp max |Δω| 1 cm⁻¹; wb97x max |Δω| 5 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 01:19:20 → 2026-09-26 01:58:26, 2346 s, peak 3.88 GB, deck 9e27bf8e9348
  • Imaginary modes: B3LYP 0, ωB97X 0
  • Source files: corpus factory · manifest