Processive rotaxane systems. Studies on the mechanism and control of the threading process.
The threading behavior of a zinc analogue of a previously reported processive manganese porphyrin catalyst onto a series of polymers of different lengths is reported. It is demonstrated that the speed of the threading process is determined by the opening of the cavity of the toroidal porphyrin host, which can be tuned with the help of axial ligands that coordinate to the metal center in the porphyrin.
Ramos
Pilar Hidalgo
PH
Institute for Molecules and Materials, Radboud Universiteit Nijmegen, Toernooiveld 1, 6525 ED Nijmegen, The Netherlands.
Coumans
Ruud G E
RG
Deutman
Alexander B C
AB
Smits
Jan M M
JM
de Gelder
Rene
R
Elemans
Johannes A A W
JA
Nolte
Roeland J M
RJ
Rowan
Alan E
AE
D000465:Algorithms; D002384:Catalysis; D018360:Crystallography, X-Ray; D007700:Kinetics; D008024:Ligands; D049449:Luminescence; D008968:Molecular Conformation; D008970:Molecular Weight; D011166:Porphyrins / Q000737:chemistry; D043862:Rotaxanes / Q000737:chemistry*; D013816:Thermodynamics; D017967:Zinc Compounds / Q000737:chemistry
D008024:Ligands; D011166:Porphyrins; D043862:Rotaxanes; D017967:Zinc Compounds