title: Cyclic [2]pseudorotaxane tetramers consisting of two rigid rods threaded through two bis-macrocycles: copper(I)-templated synthesis and X-ray structure studies.
abstract: Variously substituted coordinating rigid rods have been synthesized which incorporate a central 4,7-phenanthroline nucleus attached to two 2-pyridyl groups via its 3 and 8 positions, so as to yield bis-bidentate chelates, the two-coordinating axes of the chelates being parallel to one another. Regardless of the nature of the substituents borne by the rods, the copper(I)-induced threading reaction of two such rods through the rings of two bis-macrocycles affords in a quantitative yield the 4-copper(I) threaded assembly. The [2]pseudorotaxane tetramers thus obtained have been fully characterized in solution and, for one of them, an X-ray structure could be obtained, confirming the threaded nature of the complex and providing important structural information.
authors.affiliation: Laboratoire de Chimie Ogano-Minerale, LC3 UMR 7177 du CNRS, Universite Louis Pasteur, Institut de Chimie, 4 rue Blaise Pascal, 67070 Strasbourg Cedex, France.
authors.forename: Julien
authors.initials: J
authors.lastname: Frey
authors.forename: Christian
authors.initials: C
authors.lastname: Tock
authors.forename: Jean-Paul
authors.initials: JP
authors.lastname: Collin
authors.forename: Valérie
authors.initials: V
authors.lastname: Heitz
authors.forename: Jean-Pierre
authors.initials: JP
authors.lastname: Sauvage
authors.forename: Kari
authors.initials: K
authors.lastname: Rissanen
mesh_terms: D002384:Catalysis; D003300:Copper / Q000737:chemistry*; D018360:Crystallography, X-Ray; D047028:Macrocyclic Compounds / Q000138:chemical synthesis* / Q000737:chemistry; D008958:Models, Molecular; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000737:chemistry*; D010618:Phenanthrolines / Q000737:chemistry*; D043862:Rotaxanes / Q000138:chemical synthesis* / Q000737:chemistry; D013237:Stereoisomerism
chemical_list: D047028:Macrocyclic Compounds; D009942:Organometallic Compounds; D010618:Phenanthrolines; D043862:Rotaxanes; C053487:4,7-phenanthroline; D003300:Copper