Method for the Preparation of Nonracemic Bis-Cyclometalated Iridium(III) Complexes

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	Method for the Preparation of Nonracemic Bis-Cyclometalated Iridium(III) Complexes
	Helms, Melanie ; Lin, Zhijie ; Gong, Lei ; Harms, Klaus ; Meggers, Eric ; Gong L(龚磊) ; ERIC MEGGERS
刊名	http://dx.doi.org/10.1002/ejic.201300411
	2013
关键词	EMITTING ELECTROCHEMICAL-CELLS RUTHENIUM POLYPYRIDYL COMPLEXES OCTAHEDRAL METAL-COMPLEXES PHOTOPHYSICAL PROPERTIES ASYMMETRIC-SYNTHESIS STEREOSELECTIVE-SYNTHESIS CRYSTAL-STRUCTURE III COMPLEXES LIGANDS LUMINESCENT
英文摘要	German Research Foundation (DFG) [ME 1805/4-1]; US National Institutes of Health (NIH) [CA114046]; A practical strategy for the generation of virtually enantiomerically pure bis-cyclometalated iridium(III) complexes is reported. Accordingly, the reactions of [Ir(-Cl)(ppy)(2)](2) (ppy = cyclometalating 2-phenylpyridine) with (S)-4-tert-butyl-2-(2-hydroxyphenyl)-2-oxazoline [(S)-1a], [Ir(-Cl)(pq)(2)](2) (pq = cyclometalating 2-phenylquinoline) with (S)-2-(2-hydroxyphenyl)-4-isopropyl-2-oxazoline [(S)-1b], and [Ir(-Cl)(pbt)(2)](2) (pbt = cyclometalating 2-phenylbenzothiazole) with (S)-2-(2-hydroxyphenyl)-4-isopropyl-2-thiazoline [(S)-1d] afforded diastereomeric mixtures of salicyloxazolinato or salicylthiazolinato complexes /-[Ir(ppy)(2){(S)-1a-H}]PF6, /-[Ir(pq)(2){(S)-1b-H}]PF6, and /-[Ir(pbt)(2){(S)-1d-H}]PF6, respectively, which could be resolved by silica gel flash chromatography. With the individual diastereomers in hand, an acid-induced substitution of the chiral auxiliaries by achiral bidentate ligands with retention of configuration afforded several iridium complexes - or -[Ir((CN)-N-perpendicular to)(2)((NN)-N-perpendicular to)]PF6 ((CN)-N-perpendicular to = cyclometalating ppy, pq, or pbt; (NN)-N-perpendicular to = 2,2-bipyridine, 1,10-phenanthroline, or 2,2-biquinoline) with enantiomeric ratio (er) values of 24:1 to 230:1.
语种	英语
出版者	WILEY-V C H VERLAG GMBH
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/88943]
专题	化学化工－已发表论文
推荐引用方式 GB/T 7714	Helms, Melanie,Lin, Zhijie,Gong, Lei,et al. Method for the Preparation of Nonracemic Bis-Cyclometalated Iridium(III) Complexes[J]. http://dx.doi.org/10.1002/ejic.201300411,2013.
APA	Helms, Melanie.,Lin, Zhijie.,Gong, Lei.,Harms, Klaus.,Meggers, Eric.,...&ERIC MEGGERS.(2013).Method for the Preparation of Nonracemic Bis-Cyclometalated Iridium(III) Complexes.http://dx.doi.org/10.1002/ejic.201300411.
MLA	Helms, Melanie,et al."Method for the Preparation of Nonracemic Bis-Cyclometalated Iridium(III) Complexes".http://dx.doi.org/10.1002/ejic.201300411 (2013).