Synthesis, characterization, photophysics and electrophosphorescent applications of phosphorescent platinum cyclometalated complexes with 9-arylcarbazole moieties was written by Ho, Cheuk-Lam;Wong, Wai-Yeung;Yao, Bing;Xie, Zhiyuen;Wang, Lixiang;Lin, Zhenyang. And the article was included in Journal of Organometallic Chemistry in 2009.Product Details of 922721-30-0 The following contents are mentioned in the article:
Cyclometalating Pt(II) complexes with substituted 9-arylcarbazolyl chromophores were synthesized and characterized. These complexes are thermally stable and most of them were characterized by x-ray crystallog. The phosphorescence emissions of the complexes are dominated by 3MLCT excited states. The excited state properties of these complexes can be modulated by varying the electronic characteristics of the cyclometalating ligands via substituent effects, thus allowing the emission to be tuned from bright green to yellow, orange and red light. The correlation between the functional properties of these metallophosphors and the results of d. functional theory calculations was made. Because of the propensity of the electron-rich carbazolyl group to facilitate hole injection/transport, the presence of such moiety can increase the HOMO levels and improve the charge balance in the resulting complexes relative to the parent Pt(II) phosphor with 2-phenylpyridine ligand. The solution-processed electrophosphorescent organic light-emitting diodes doped with these Pt-based phosphors were fabricated which showed a maximum external quantum efficiency of 2.77% for the best device, corresponding to a power efficiency of 3.48 lm/W and a luminance efficiency of 8.49 cd/A. The present work enables the rational design of Pt-carbazolyl electrophosphors by synthetically tailoring the structure of carbazolylpyridine ring that can permit good color-tuning versatility suitable for multi-color display technol. This study involved multiple reactions and reactants, such as 3-Bromo-9-(4-fluorophenyl)-9H-carbazole (cas: 922721-30-0Product Details of 922721-30-0).
3-Bromo-9-(4-fluorophenyl)-9H-carbazole (cas: 922721-30-0) belongs to organobromine compounds. Bromo compounds are employed in a variety of metal-catalyzed coupling reactions. They are also ideal candidates for the synthesis of Grignard reagents that have wide-applicability in organic synthesis. When the molecular ion is detected, the bromine and chlorine isotope patterns are very distinct, but caution is to be exercised for certain mixed chlorinated/brominated compounds, which can look similar to homohalogen patterns.Product Details of 922721-30-0
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary