Synthesis and Characterization of 2,6-Di(quinolin-8-yl)pyridines. New Ligands for Bistridentate RuII Complexes with Microsecond Luminescent Lifetimes
摘要:
The synthesis of 4-substituted and 4-aryl-substituted 2,6-di(quinolin-8-yl)pyridines is described. The tridentate ligands were prepared via a palladium-catalyzed Suzuki-Miyaura cross-coupling reaction or via a one-step ring-forming reaction generating the central pyridine ring. X-ray crystal structures and H-1 NMR shifts are discussed and compared to the corresponding data for a Ru-II bistridentate complex. Intramolecular stacking of two quinoline units in the Run complex is suggested by H-1 NMR data and also observed in the X-ray structure.
Synthesis and Characterization of 2,6-Di(quinolin-8-yl)pyridines. New Ligands for Bistridentate RuII Complexes with Microsecond Luminescent Lifetimes
摘要:
The synthesis of 4-substituted and 4-aryl-substituted 2,6-di(quinolin-8-yl)pyridines is described. The tridentate ligands were prepared via a palladium-catalyzed Suzuki-Miyaura cross-coupling reaction or via a one-step ring-forming reaction generating the central pyridine ring. X-ray crystal structures and H-1 NMR shifts are discussed and compared to the corresponding data for a Ru-II bistridentate complex. Intramolecular stacking of two quinoline units in the Run complex is suggested by H-1 NMR data and also observed in the X-ray structure.
Facile Synthesis of Bistridentate Ru<sup>II</sup> Complexes Based on 2,6-Di(quinolin-8-yl)pyridyl Ligands: Sensitizers with Microsecond <sup>3</sup>MLCT Excited State Lifetimes
作者:Michael Jäger、Rohan J. Kumar、Helmar Görls、Jonas Bergquist、Olof Johansson
DOI:10.1021/ic802342t
日期:2009.4.6
[Ru(dqp)2Cl]+ (28−46%). [Ru(dqp2)Cl]+ was photochemically, or thermally in the presence of AgI, converted to mer-1. By using mer-[Ru(dqp)(MeCN)3] 2+, which was crystallographically characterized, a wide range of homo- and heteroleptic meridional [Ru(dqp)2]2+-based complexes was synthesized in up to 77% yield. The synthetic utility of meridional [Ru(dqp)2]2+-based complexes as building blocks was demonstrated
Bistridentate Ruthenium(II)polypyridyl-Type Complexes with Microsecond <sup>3</sup>MLCT State Lifetimes: Sensitizers for Rod-Like Molecular Arrays
作者:Maria Abrahamsson、Michael Jäger、Rohan J. Kumar、Tomas Österman、Petter Persson、Hans-Christian Becker、Olof Johansson、Leif Hammarström
DOI:10.1021/ja804890k
日期:2008.11.19
A series of bistridentate ruthenium(II) polypyridyl-type complexes based on the novel 2,6-di(quinolin-8-yl)pyridine (dqp) ligand have been synthesized and their photophysicalproperties have been studied. The complexes are amenable to substitution in the 4-position of the central pyridine with conserved quasi-C2v symmetry, which allows for extension to isomer-free, rod-like molecular arrays for vectorial
Synthesis and Characterization of 2,6-Di(quinolin-8-yl)pyridines. New Ligands for Bistridentate Ru<sup>II</sup> Complexes with Microsecond Luminescent Lifetimes
作者:Michael Jäger、Lars Eriksson、Jonas Bergquist、Olof Johansson
DOI:10.1021/jo7015373
日期:2007.12.1
The synthesis of 4-substituted and 4-aryl-substituted 2,6-di(quinolin-8-yl)pyridines is described. The tridentate ligands were prepared via a palladium-catalyzed Suzuki-Miyaura cross-coupling reaction or via a one-step ring-forming reaction generating the central pyridine ring. X-ray crystal structures and H-1 NMR shifts are discussed and compared to the corresponding data for a Ru-II bistridentate complex. Intramolecular stacking of two quinoline units in the Run complex is suggested by H-1 NMR data and also observed in the X-ray structure.