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Related Experiment Video

Updated: Jun 1, 2026

Ultrahigh Density Array of Vertically Aligned Small-molecular Organic Nanowires on Arbitrary Substrates

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Published on: June 18, 2013

Highly linear self-assembled porphyrin wires.

Matthieu Koepf¹, Jonas Conradt, Jędrzej Szmytkowski

¹Institut de Chimie, UMR 7177 CNRS-UDS, 1 Rue Blaise Pascal, 67008 Strasbourg, France.

Inorganic Chemistry

|June 9, 2011

Summary

Researchers created long, linear zinc porphyrin wires using a self-assembly process. This method offers precise geometrical control for advanced nanomaterials.

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Area of Science:

Supramolecular Chemistry
Materials Science
Nanotechnology

Background:

Self-assembly is crucial for creating ordered nanostructures.
Zinc porphyrins are versatile building blocks for functional materials.

Purpose of the Study:

To develop a controlled noncovalent assembly method for linear multiporphyrin wires.
To investigate the formation and properties of these self-assembled structures.

Main Methods:

Utilized a linear bis(imidazolyl zinc porphyrin) with C(18) substituents.
Employed imidazole recognition within phenanthroline-strapped zinc porphyrins for assembly.
Studied soluble oligomers using UV-visible and time-resolved luminescence spectroscopy.
Analyzed solid-state assemblies via atomic force microscopy.

Main Results:

Achieved efficient noncovalent assembly with high geometrical control.
Generated discrete soluble oligomers and long solid-state wires (up to 480 nm).
Observed precise control over wire length and linearity.

Conclusions:

Phenanthroline-strapped porphyrins enable directional control in self-assembly.
The developed method is effective for constructing linear multiporphyrin architectures.
These findings highlight potential applications in nanoscale material design.