Ruelas-Alvarez, Glenda Y. published the artcileExploration of the Luminescence Properties of Organic Phosphate Salts of 3-Quinoline- and 5-Isoquinolineboronic Acid, Formula: C9H8BNO2, the publication is European Journal of Inorganic Chemistry (2019), 2019(22), 2707-2724, database is CAplus.
3-Quinoline- and 5-isoquinolineboronic acids (3QBA and 5IQBA) were combined with 1-naphthyl and di-Ph phosphate (1NP and DPP) to give three crystalline mol. salts of 1:1 stoichiometric composition, viz., 3QBA–1NP, 5IQBA–1NP and 3QBA–DPP. The products were characterized by elemental anal., single-crystal x-ray diffraction studies, IR spectroscopy, luminescence spectroscopy and TG-DSC measurements. The anal. of the solid-state structures revealed that the mol. components are linked by strong charge-assisted hydrogen bonds forming heterodimeric synthons of the type B(OH)2···–O2P and N+-H···O(P). In addition, the hydrogen phosphate salts derived from 1NP exhibit the homodimeric P(O)OH···O(HO)P synthon. The aggregates formed through the above-mentioned hydrogen bonding motifs are further connected through π···π interactions, which involve mainly the aromatic rings of the quinolinium/isoquinolinium cations. The crystal structure analyses were accomplished by Hirshfeld surface analyses and the associated 2D fingerprint plots, illustrating the similarities and differences of the three salts more concisely. Solid-state photoluminescence spectroscopy of the title compounds showed emission in the blue region with an extraordinary high quantum yield (Φf = 98 %) for compound 3QBA–DPP.
European Journal of Inorganic Chemistry published new progress about 371766-08-4. 371766-08-4 belongs to isoquinoline, auxiliary class Isoquinoline,Boronic acid and ester,Boronic Acids,Boronic acid and ester, name is Isoquinolin-5-ylboronic acid, and the molecular formula is C9H8BNO2, Formula: C9H8BNO2.
Referemce:
https://en.wikipedia.org/wiki/Isoquinoline,
Isoquinoline | C9H7N – PubChem