Spectrum Atlas

phenanthrene+Cl C14H9Cl

A2_3c2cf09504 · SMILES Clc1cccc2ccc3ccccc3c12 · InChIKey SDUAXSKHZIJCSC-UHFFFAOYSA-N

Cheap level done imaginary mode confirmedanalytic check agrees

Harmonic frequencies at the cheap level (deck v1: B3LYP and ωB97X, 6-31G*, at the B3LYP geometry)

66 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
1-23.643.1+66.8
289.4107.3+18.0
3174.0189.9+15.9
4218.0223.9+5.8
5230.6232.1+1.5
6274.7283.3+8.6
7277.6287.5+9.9
8379.9384.6+4.6
9408.7422.4+13.7
10441.6447.5+5.9
11475.4489.0+13.6
12490.1495.9+5.8
13512.3518.1+5.9
14513.6521.2+7.6
15555.9560.1+4.2
16579.4590.8+11.4
17606.9622.8+15.9
18658.8664.9+6.1
19720.2735.1+14.9
20729.8735.4+5.5
21756.0766.5+10.4
22768.3777.4+9.1
23787.2802.6+15.4
24808.3826.6+18.3
25841.2855.6+14.4
26847.6856.6+9.0
27883.4904.7+21.3
28911.1933.6+22.5
29931.3945.3+14.0
30949.9983.2+33.3
31968.31000.7+32.4
32980.31013.3+33.0
33991.11019.8+28.7
341011.01021.5+10.5
351083.51092.5+9.0
361121.51132.3+10.8
371131.31137.8+6.5
381181.71168.6-13.1
391190.51188.4-2.1
401202.51206.6+4.1
411220.21220.3+0.2
421240.41242.2+1.8
431256.21259.3+3.1
441290.71297.8+7.1
451324.21337.7+13.5
461354.11343.1-10.9
471376.91361.9-15.0
481429.91446.8+16.8
491459.91470.1+10.2
501475.11490.7+15.5
511499.31510.8+11.5
521548.31573.9+25.6
531577.51605.6+28.1
541611.91646.0+34.0
551652.71688.8+36.1
561669.81705.4+35.6
571687.51724.6+37.1
583178.53222.7+44.2
593181.73225.1+43.4
603189.53232.8+43.3
613191.63234.6+43.0
623199.73243.1+43.4
633208.13250.7+42.7
643209.13252.0+42.9
653227.23269.8+42.6
663321.63369.9+48.3

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: none yet
  • Entered the corpus as: substituted three- and four-ring cores, enumerated from the parents (layer A′) (layer A2)
  • Run: ubuntu-32gb-hel1-11, 2026-09-22 16:49:56 → 2026-09-22 18:17:02, 5226 s, peak 5.69 GB, deck 97ed2d67c66b
  • Imaginary modes: B3LYP 1, ωB97X 0
  • Source files: corpus factory · manifest