Chu, Zengze published the artcileSynthesis of Dendritic Oligo-Spiro(fluorene-9,9′-xanthene) Derivatives with Carbazole and Fluorene Pendants and their Thermal, Optical, and Electroluminescent Properties, SDS of cas: 159-62-6, the publication is Macromolecular Rapid Communications (2009), 30(20), 1745-1750, database is CAplus and MEDLINE.
Two novel spiro-configured ter(arylene-ethynylene) derivatives, TSF-Cz and TSF-F, were designed and synthesized using spiro(fluorene-9,9′-xanthene) (SFX) as building blocks, introducing a hole-transporting carbazole and a fluorene chromophore as the peripheral functional group into the backbone through an O atom. The 2 well-defined oligomers possess good solubility, film-forming quality, and high Tg‘s at 140 and 126°, resp. These oligomers exhibit blue photoluminescence (PL) emission both in solution and solid states. The double-layered devices fabricated using the 2 materials as the emitter show a sky-blue emission with a brightness and a current efficiency of 7,613 cd m-2 and 1.11 cd A-1 for TSF-Cz, and 1,507 cd m-2 and 0.36 cd A-1 for TSF-F, resp.
Macromolecular Rapid Communications published new progress about 159-62-6. 159-62-6 belongs to naphthyridine, auxiliary class Other Aromatic Heterocyclic,Spiro, name is Spiro[fluorene-9,9′-xanthene], and the molecular formula is C25H16O, SDS of cas: 159-62-6.
Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem