Quantitative formation of [2]catenanes using copper(I) and palladium(II) as templating and assembling centers: The entwining route and the threading approach

Christiane Dietrich-Buchecker, Benoît Colasson, Makoto Fujita, Akiko Hori, Neri Geum, Shigeru Sakamoto, Kentaro Yamaguchi, Jean Pierre Sauvage

研究成果: Article

93 引用 (Scopus)

抄録

Transition metal-mediated templating and self-assembly have shown powerful potentials for the synthesis of interlocked molecules. These two strategies were combined in designing and preparing a new type of coordination catenanes incorporating Cu(I) and Pd(II) metal centers. The ligand designed here contains a phenanthroline core and pyridine sidearms (compound 1). Using this phenanthroline-pyridine conjugated ligand, two approaches were examined, which were shown to be surprisingly efficient for the catenane synthesis: the entwining route (entwining of two ligands around Cu(I) followed by Pd(II) clipping) and the threading approach (Cu(I)-templated threading of a cyclic ligand on an acyclic ligand followed by the PD(II) clipping of the second ring). In the former method, stepwise treatment of 1 with Cu(CH3CN)4PF6 (templating center) and enPd(NO3)2 (assembling center) gives rise to the quantitative formation of CuPd2 catenane 18. In the latter method, Cu(I) templates the threading of phenanthroline-containing macrocycle 2 on ligand 1, which is followed by Pd(II) clipping to give hetero catenane 20. In both approaches, the formation of catenanes is convincing thanks to the strong templating effect of Cu(I), while the ring closure steps are efficiently furnished by Pd(II)-directed self-assembly.

元の言語English
ページ(範囲)5717-5725
ページ数9
ジャーナルJournal of the American Chemical Society
125
発行部数19
DOI
出版物ステータスPublished - 2003 5 14
外部発表Yes

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Catenanes
Palladium
Copper
Ligands
Phenanthrolines
Pyridine
Self assembly
Transition metals
Metals
Molecules

ASJC Scopus subject areas

  • Chemistry(all)

これを引用

Quantitative formation of [2]catenanes using copper(I) and palladium(II) as templating and assembling centers : The entwining route and the threading approach. / Dietrich-Buchecker, Christiane; Colasson, Benoît; Fujita, Makoto; Hori, Akiko; Geum, Neri; Sakamoto, Shigeru; Yamaguchi, Kentaro; Sauvage, Jean Pierre.

:: Journal of the American Chemical Society, 巻 125, 番号 19, 14.05.2003, p. 5717-5725.

研究成果: Article

Dietrich-Buchecker, Christiane ; Colasson, Benoît ; Fujita, Makoto ; Hori, Akiko ; Geum, Neri ; Sakamoto, Shigeru ; Yamaguchi, Kentaro ; Sauvage, Jean Pierre. / Quantitative formation of [2]catenanes using copper(I) and palladium(II) as templating and assembling centers : The entwining route and the threading approach. :: Journal of the American Chemical Society. 2003 ; 巻 125, 番号 19. pp. 5717-5725.
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abstract = "Transition metal-mediated templating and self-assembly have shown powerful potentials for the synthesis of interlocked molecules. These two strategies were combined in designing and preparing a new type of coordination catenanes incorporating Cu(I) and Pd(II) metal centers. The ligand designed here contains a phenanthroline core and pyridine sidearms (compound 1). Using this phenanthroline-pyridine conjugated ligand, two approaches were examined, which were shown to be surprisingly efficient for the catenane synthesis: the entwining route (entwining of two ligands around Cu(I) followed by Pd(II) clipping) and the threading approach (Cu(I)-templated threading of a cyclic ligand on an acyclic ligand followed by the PD(II) clipping of the second ring). In the former method, stepwise treatment of 1 with Cu(CH3CN)4PF6 (templating center) and enPd(NO3)2 (assembling center) gives rise to the quantitative formation of CuPd2 catenane 18. In the latter method, Cu(I) templates the threading of phenanthroline-containing macrocycle 2 on ligand 1, which is followed by Pd(II) clipping to give hetero catenane 20. In both approaches, the formation of catenanes is convincing thanks to the strong templating effect of Cu(I), while the ring closure steps are efficiently furnished by Pd(II)-directed self-assembly.",
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AU - Colasson, Benoît

AU - Fujita, Makoto

AU - Hori, Akiko

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AU - Yamaguchi, Kentaro

AU - Sauvage, Jean Pierre

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