Quantitative mass determination of conjugated polymers for single molecule conformation analysis: enhancing rigidity with macrocycles
作者:Klaus Becker、Gerald Gaefke、Jasmin Rolffs、Sigurd Höger、John M. Lupton
DOI:10.1039/c0cc00670j
日期:——
A combination of advanced synthetic and single molecule spectroscopic techniques allowed us to demonstrate that macrocycles, covalently bound to a conjugated polymer backbone, raise the effective chain persistence length by at least a factor of 5.
A Nanosized Phenylene‐Ethynylene‐Butadiynylene [2]Catenane
作者:Christopher Schweez、Sigurd Höger
DOI:10.1002/chem.201802567
日期:2018.8.14
convergent, template‐directed synthesis, an efficient route to a phenylene‐ethynylene‐butadiynylene based [2]catenane is described. The key step is performed by the aminolysis of the corresponding precatenane, which is obtained by a sequence of metal‐catalyzed cross‐coupling and desilylation reactions. The cyclization reaction leads besides the [2]precatenane to a variety of larger precatenanes and offers