An efficient noncovalent assembly process involving high geometrical control was applied to a linear bis(imidazolyl zinc porphyrin) 7Zn, bearing C18 substitutents, to generate linear multiporphyrin wires. The association process is based on imidazole recognition within the cavity of the phenanthroline-strapped zinc porphyrin. In chlorinated solvents, discrete soluble oligomers were obtained after (7Zn)n was end-capped with a terminal single imidazolyl zinc porphyrin derivative 4Zn. These soluble species, as well as their destabilization in the presence of protic solvents, were studied by UV-visible and time-resolved luminescence. In the solid state, assemblies as long as 480 nm, which corresponds to 190 iterative units or a total of 380 porphyrins, were observed by atomic force microscopy measurements on mica. The length and linearity of the porphyrin wires obtained illustrate the potential of phenanthroline-strapped porphyrins for the directional control of self-assembly processes.
Authors
- Matthieu Koepf,
- Jonas Conradt,
- dr hab. inż. Jędrzej Szmytkowski link open in new tab ,
- Jennifer A. Wytko,
- Lionel Allouche,
- Heinz Kalt,
- Teodor Silviu Balaban,
- Jean Weiss
Additional information
- DOI
- Digital Object Identifier link open in new tab 10.1021/ic2001255
- Category
- Publikacja w czasopiśmie
- Type
- artykuł w czasopiśmie wyróżnionym w JCR
- Language
- angielski
- Publication year
- 2011
Source: MOSTWiedzy.pl - publication "Highly linear self-assembled porphyrin wires" link open in new tab
