Nonconjugated Dendritic Iridium(III) Complexes with Tunable Pyridine-Based Ligands: Synthesis, Photophysical, Electrochemical, and Electroluminescent Properties was written by Li, Xianghong;Chen, Zhao;Zhao, Qiang;Shen, Li;Li, Fuyou;Yi, Tao;Cao, Yong;Huang, Chunhui. And the article was included in Inorganic Chemistry in 2007.Category: alcohols-buliding-blocks This article mentions the following:
A simple synthetic route was developed for preparation of iridium cyclometalated dendritic nonconjugated second-generation polybenzyloxy-substituted 2-phenylpyridine and 2-(2-benzo[b]thienyl)pyridine complexes based on tunable 2-arylpyridine ligands. From a key intermediate, 2-bromo-4-pyridinemethanol, three series of polybenzyloxy dendritic pyridine-based ligands with 2-Ph, 2-benzothienyl, and 2,4-difluorophenyl substituents were easily prepared via two-step reaction sequence comprising Suzuki coupling and etherification. Using these pyridine proligands the dendritic-substituted iridium(III) complexes cyclometalated complexes exhibiting tunable photoluminescence from blue to red were obtained. The photoluminescence quantum yields of these dendritic complexes in neat films increased with the increasing generation number of dendritic C-N-ligands. Importantly, these iridium complexes were used as dopants for successfully fabricated polymer-based electrophosphorescent light-emitting diodes (PLEDs), featuring the highest external quantum efficiency of 12.8%. In the experiment, the researchers used many compounds, for example, 2-Bromopyridine-4-methanol (cas: 118289-16-0Category: alcohols-buliding-blocks).
2-Bromopyridine-4-methanol (cas: 118289-16-0) belongs to alcohols. Alkyl halides are often synthesized from alcohols, in effect substituting a halogen atom for the hydroxyl group. Alcohols may be oxidized to give ketones, aldehydes, and carboxylic acids. These functional groups are useful for further reactions. Oxidation of organic compounds generally increases the number of bonds from carbon to oxygen (or another electronegative element, such as a halogen), and it may decrease the number of bonds to hydrogen.Category: alcohols-buliding-blocks
Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts