Boominathan, Siva Senthil Kumar published the artcileDiindeno-Fused Dibenzo[a,h]anthracene and Dibenzo[c,l]chrysene: Syntheses, Structural Analyses, and Properties, Related Products of naphthyridine, the publication is Chemistry – A European Journal (2019), 25(30), 7280-7284, database is CAplus and MEDLINE.
Diindeno-fused dibenzo[a,h]anthracene 6 and diindeno-fused dibenzo[c,l]chrysene 9 contain the key moieties 1,4-quinodipropene (1,4-QDP) and 2,6-naphthoquinodipropene (2,6-NQDP), resp., and they both have an open-shell singlet ground state. The latter compound exhibits a strong biradical character and interesting properties, including a low ΔET-S (2.44 kcal mol-1), a small HOMO-LUMO gap (1.06 eV), a wide photoabsorption range (250-1172 nm), and a large two-photon absorption cross-section (σ=1342±56 GM). This work verifies that 6 has a slightly larger HOMO-LUMO gap and ΔET-S than its helical isomer diindeno[2,1-f:1′,2′-j]picene (DIP), but is a much stronger two-photon absorber, verifying the important effect of geometry on the photophys. properties.
Chemistry – A European Journal published new progress about 152873-79-5. 152873-79-5 belongs to naphthyridine, auxiliary class Trifluoromethyl,Sulfonate,Benzene, name is 1,5-NAphthalenebis(trifluoromethanesulfonate), and the molecular formula is C12H6F6O6S2, Related Products of naphthyridine.
Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem