Surprising Substituent Effects on the Self-Assembly of Helicates from Bis(bipyridyl) BINOL Ligands
摘要:
A number of different bis(bipyridyl) BINOL ligands were prepared using a convergent building block approach, These were studied with regard to their ability to undergo self-assembly to dinuclear helicatcs upon coordination to suitable late-transition-metal ions. Surprisingly, the substituents at the periphery of the ligand structure were found to have a marked influence on the outcome of the self-assembly processes with regard to the helicates composition, the stereoselectivity of the helicate formation, their redox reactivity, and their electronical properties as scrutinized by NMR- and CD-spectroscopic methods as well as ESI-mass spectrometric methods.
Surprising Substituent Effects on the Self-Assembly of Helicates from Bis(bipyridyl) BINOL Ligands
摘要:
A number of different bis(bipyridyl) BINOL ligands were prepared using a convergent building block approach, These were studied with regard to their ability to undergo self-assembly to dinuclear helicatcs upon coordination to suitable late-transition-metal ions. Surprisingly, the substituents at the periphery of the ligand structure were found to have a marked influence on the outcome of the self-assembly processes with regard to the helicates composition, the stereoselectivity of the helicate formation, their redox reactivity, and their electronical properties as scrutinized by NMR- and CD-spectroscopic methods as well as ESI-mass spectrometric methods.
Bunzen, Jens; Bruhn, Torsten; Bringmann, Gerhard, Journal of the American Chemical Society, 2009, vol. 131, p. 3621 - 3630
作者:Bunzen, Jens、Bruhn, Torsten、Bringmann, Gerhard、Luetzen, Arne
DOI:——
日期:——
Surprising Substituent Effects on the Self-Assembly of Helicates from Bis(bipyridyl) BINOL Ligands
作者:Jens Bunzen、Rainer Hovorka、Arne Lützen
DOI:10.1021/jo900254r
日期:2009.8.7
A number of different bis(bipyridyl) BINOL ligands were prepared using a convergent building block approach, These were studied with regard to their ability to undergo self-assembly to dinuclear helicatcs upon coordination to suitable late-transition-metal ions. Surprisingly, the substituents at the periphery of the ligand structure were found to have a marked influence on the outcome of the self-assembly processes with regard to the helicates composition, the stereoselectivity of the helicate formation, their redox reactivity, and their electronical properties as scrutinized by NMR- and CD-spectroscopic methods as well as ESI-mass spectrometric methods.