In 2018,Zeghouan, Ouahida; Dems, Mohamed AbdEsselem; Sellami, Seifeddine; Merazig, Hocine; Daran, Jean Claude published 《A strongly fluorescent NiII complex with 2-(2-hydroxyethyl)pyridine ligands: synthesis, characterization and theoretical analysis and comparison with a related polymeric Cu complex》.Acta Crystallographica, Section E: Crystallographic Communications published the findings.Category: pyridine-derivatives The information in the text is summarized as follows:
The synthesis and characterization of diaquabis 2-(2-hydroxyethyl)pyridine-κ2N,O nickel dinitrate, Ni C7H9NO2H2O2NO32, under ambient conditions is reported and compared with catena-poly bis 2-2-hydroxyethylpyridine-κ2N,O copper-μ-sulfato-κ2O:O’, CuC7H9NO2SO4n Zeghouan et al. 2016. Private communication refcode 1481676. CCDC, Cambridge, England. In the two complexes, the 2-(2-hydroxyethyl)pyridine ligands coordinate the metal ions through the N atom of the pyridine ring and the O atom of the hydroxy group, creating a chelate ring. The NiII or CuII ion lies on an inversion center and exhibits a slightly distorted MO4N2 octahedral coordination geometry, build up by O and N atoms from two 2-(2-hydroxyethyl)pyridine ligands and two water mols. or two O atoms belonging to sulfate anions. The sulfate anion bridges the CuII ions, forming a polymeric chain. The photoluminescence properties of these complexes have been studied on as-synthesized samples and reveal that both compounds display a strong blue-light emission with maxima around 497 nm. From DFT/TDDFT studies, the blue emission appears to be derived from the ligand-to-metal charge-transfer (LMCT) excited state. In addition, the IR spectroscopic properties and thermogravimetric behaviors of both complexes have been investigated. In the part of experimental materials, we found many familiar compounds, such as 2-(2-Hydroxyethyl)pyridine(cas: 103-74-2Category: pyridine-derivatives)
2-(2-Hydroxyethyl)pyridine(cas: 103-74-2) belongs to pyridine. Pyridine is very deactivated towards electrophilic substitution with respect to benzene. For this reason classical formylation, using methods such as the Gattermann or Vilsmeier reactions, are not generally successful. Category: pyridine-derivatives