Durka, Krzysztof published the artcileSynthesis, characterization and photoluminescence of 8-oxyquinolinato organoboron complexes derived from pyrazole, Category: pyrazoles-derivatives, the publication is Tetrahedron Letters (2017), 58(12), 1185-1189, database is CAplus.
A 1-pot protocol was developed for the synthesis of luminescent heteroleptic diaryldiborinic complexes containing the central aryl ring bonded to two B atoms substituted with pyrazole and complexed with 8-hydroxyquinoline. The luminescent properties of these compounds were measured. In dilute solutions they exhibited an emission at â?13 nm with quantum yields of 22-27% which are typical for borinic 8-hydroxyquinoline complexes. The only exception was the complex containing the bithiophene scaffold, for which no fluorescence was observed The obtained pyrazole-based complexes show improved solubility and thermal stability with respect to their Ph analogs. The exptl. UV-visible absorption and emission data are supported by theor. calculations of the frontier MOs, revealing the aromatic linker to quinolinato ligand excitation mechanism.
Tetrahedron Letters published new progress about 930-36-9. 930-36-9 belongs to pyrazoles-derivatives, auxiliary class Pyrazole, name is 1-Methylpyrazole, and the molecular formula is C4H6N2, Category: pyrazoles-derivatives.
Referemce:
https://en.wikipedia.org/wiki/Pyrazole,
Pyrazoles – an overview | ScienceDirect Topics