Saidi, Lamia; Samet, Amira; Dammak, Thameur; Pillet, Sebastien; Abid, Younes published their research in Physical Chemistry Chemical Physics in 2021. The article was titled 《Down and up conversion luminescence of the lead-free organic metal halide material: (C9H8NO)2SnCl6·2H2O》.HPLC of Formula: 614-16-4 The article contains the following contents:
The present work deals with the optical properties of hybrid organic metal halide material namely (C9H8NO)2SnCl6.2H2O. Its structure is built up from isolated [SnCl6]2- octahedral dianions surrounded by Hydroxyl quinolinium organic cations (C9H8NO)+, abbreviated as [HQ]+. Unlike the usual hybrid materials, where metal halide ions are luminescent semiconductors while the organic ones are optically inactive, [HQ]2SnCl6.2H2O contains two optically active entities: [HQ]+ organic cations and [SnCl6]2- dianions. The optical properties of the synthesized crystals were studied by optical absorption spectroscopy, photoluminescence measurements and DFT calculations of electronic d. of states. These studies have shown that both organic and inorganic entities have very close HOMO-LUMO gaps and very similar band alignments favoring the resonant energy transfer process. In addition, measurements of luminescence under variable excitations reveal an intense green luminescence around 497 nm under UV excitation (down conversion) and IR excitation (up conversion luminescence). The down conversion luminescence is assigned to the π-π* transition within the [HQ]+ organic cations involving charge transfer between the organic and inorganic entities, whereas the up-conversion luminescence is based on the triplet-triplet annihilation mechanism (TTA). The experimental part of the paper was very detailed, including the reaction process of 3-Oxo-3-phenylpropanenitrile(cas: 614-16-4HPLC of Formula: 614-16-4)
3-Oxo-3-phenylpropanenitrile(cas: 614-16-4) has been used to produce 2-benzoyl-3-furan-2-yl-acrylonitrile. It is an active methylene compound, useful in heterocyclic synthesis, e.g. polyfunctional pyridines and pyrimidines.HPLC of Formula: 614-16-4
Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts