Conjugated supramolecular materials

Supramolecular self-assembly has recently been extensively investigated as a tool to create nanostructured or hierarchically structured optoelectronically active materials from monodisperse, conjugated oligomers because such n-conjugated organic materials are interesting candidates for the fabrication of organic... 

These n interactions can be equally critical in materials chemistry applications, including self-assembled supramolecular architectures.For example, molecular wires can be formed from stacks of aromatic macrocycles.The binding of small molecules to carbon nanotubes and attraction between graphene sheets are both determined by noncovalent n interactions. The crystal structure and charge-transport properties of 7t-conjugated organic materials are also largely determined by n-n interactions. ... 

On the other hand, it has also become clear that a materials-oriented synthesis of conjugated poly(phenylene)s cannot narrow its attention to properties of molecules only in solution, but has to include aspects of processing and supramolecu-lar ordering as well. The rigid-rod character of PPPs therefore suggests the use of chain stiffness as a structure-forming principle in the design of supramolecular motifs. 

The present article is centered around macromolecular and supramolecular structures obtained upon use of benzene as a regular building block. While, e.g., the gas permeability of polyethylene tereph-thalate)s,35 the mechanical strength of carbon fibers,36 and the ion conductivity of polybenzimidazoles24 are important features from a practical viewpoint, the focus here is on the occurrence of -conjugation, or lack thereof, originating from the repetition of the aromatic benzene units in various structural motifs. If the reader regards materials... 

Abstract Phthalocyanines represent a versatile class of functional dyes which have found applications in various disciplines ranging from materials science, catalysis, nanotechnology to medicine. The intrinsic properties of the macrocycles as well as their molecular arrangements, both in solution and in the condensed phase, can be altered through rational chemical modification. Conjugation of other functional units to phthalocyanines can also complement the characteristics of the macrocycles. All these approaches can improve the performance of these macro-cyclic compounds as advanced functional materials. The purpose of this article is to provide an up-to-date review of the current research status of phthalocyanine-containing supramolecular systems. The formation, structures, and properties of self-assembled phthalocyanines as well as the non-covalent hetero-arrays containing phthalocyanines and other functional units are reviewed herein. 

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