In 2019,Journal of Organometallic Chemistry included an article by Haque, Ashanul; Al Balushi, Rayya A.; Al-Busaidi, Idris Juma; Ilmi, Rashid; Al Rasbi, Nawal; Jayapal, Maharaja; Khan, Muhammad S.; Raithby, Paul R.. Safety of 4-Ethynylpyridine. The article was titled 《Synthesis, optical spectroscopy, structural, and DFT studies on dimeric iodo-bridged Copper(I) complexes》. The information in the text is summarized as follows:
Three new iodo-bridged Cu(I) complexes [CuI(PPh3)L]2, where L = ArC5H4N, Ar = Ph (C1), biphenyl (C2) and fluorenyl (C3) were synthesized via coordination-driven self-assembly processes. Two of the Cu(I) complexes, C2 and C3, were characterized by single-crystal x-ray diffraction studies. The complexes have two mols. of the P-donor ligand and two mols. of the N-donor ligand in trans configurations, supporting the central Cu2I2 unit. Absorption properties of the complexes were studied. Extensive DFT calculations were carried out to delineate the influence of the aromatic spacers on the optical properties and the nature of the excited states. The ease of synthesis of these Cu(I) dimers and the wide range of ethynylpyridine supporting ligands that can be incorporated highlight the potential for these materials to form polymers by linking through the ethynylpyridine ligands.4-Ethynylpyridine(cas: 2510-22-7Safety of 4-Ethynylpyridine) was used in this study.
4-Ethynylpyridine(cas: 2510-22-7) 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. Safety of 4-Ethynylpyridine