Cyclic [2]pseudorotaxane tetramers consisting of two rigid rods threaded through two bis-macrocycles: copper(I)-templated synthesis and X-ray structure studies.
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.
Frey
Julien
J
Laboratoire de Chimie Ogano-Minerale, LC3 UMR 7177 du CNRS, Universite Louis Pasteur, Institut de Chimie, 4 rue Blaise Pascal, 67070 Strasbourg Cedex, France.
Tock
Christian
C
Collin
Jean-Paul
JP
Heitz
Valérie
V
Sauvage
Jean-Pierre
JP
Rissanen
Kari
K
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
D047028:Macrocyclic Compounds; D009942:Organometallic Compounds; D010618:Phenanthrolines; D043862:Rotaxanes; C053487:4,7-phenanthroline; D003300:Copper