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Steering Self-Assembly of Amphiphilic Molecular Nanostructures via Halogen Exchange.

ABSTRACT: In the field of self-assembly, the quest for gaining control over the supramolecular architecture without affecting the functionality of the individual molecular building blocks is intrinsically challenging. By using a combination of synthetic chemistry, cryogenic transmission electron microscopy, optical absorption measurements, and exciton theory, we demonstrate that halogen exchange in carbocyanine dye molecules allows for fine-tuning the diameter of the self-assembled nanotubes formed by these molecules, while hardly affecting the molecular packing determined by hydrophobic/hydrophilic interactions. Our findings open a unique way to study size effects on the optical properties and exciton dynamics of self-assembled systems under well-controlled conditions.

SUBMITTER: Kriete B

PROVIDER: S-EPMC5502413 | biostudies-literature | 2017 Jul

REPOSITORIES: biostudies-literature

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Steering Self-Assembly of Amphiphilic Molecular Nanostructures via Halogen Exchange.

Kriete Björn B Bondarenko Anna S AS Jumde Varsha R VR Franken Linda E LE Minnaard Adriaan J AJ Jansen Thomas L C TLC Knoester Jasper J Pshenichnikov Maxim S MS

The journal of physical chemistry letters 20170614 13

In the field of self-assembly, the quest for gaining control over the supramolecular architecture without affecting the functionality of the individual molecular building blocks is intrinsically challenging. By using a combination of synthetic chemistry, cryogenic transmission electron microscopy, optical absorption measurements, and exciton theory, we demonstrate that halogen exchange in carbocyanine dye molecules allows for fine-tuning the diameter of the self-assembled nanotubes formed by the ...[more]

PMID: 28594561

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