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Drain, Charles Michael; Lehn, Jean‐Maríe; Clark, J. Stephen; Hodgson, Paul B.

doi:10.1039/c39950000503

Cited by 17 publications

(20 citation statements)

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“…Regioselective association of molecular components may give rise to alternative super‐structures. Sterically directed or preorganized molecular components can, under thermodynamic control, trigger regioselectivity …”

Section: Applications Of H‐bondingmentioning

confidence: 99%

H‐Bond: Τhe Chemistry‐Biology H‐Bridge

Pairas

Tsoungas

2016

ChemistrySelect

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H‐bonding, as a non covalent stabilizing interaction of diverse nature, has a central role in the structure, function and dynamics of chemical and biological processes, pivotal to molecular recognition and eventually to drug design. Types of conventional and non conventional (H−H, dihydrogen, H‐ π, CH‐ π, anti‐ , proton coordination and H−S) H‐bonding interactions are discussed as well as features emerging from their interplay, such as cooperativity (σ‐ and π‐) effects and allostery. Its utility in many applications is described. Catalysis, proton and electron transfer processes in various materials or supramolecular architectures of preorganized hosts for guest binding, are front‐line technology. The H‐bond–related concept of proton transfer (PT) addresses energy issues or deciphering the mechanism of many natural and synthetic processes. PT is also of paramount importance in the functions of cells and is assisted by large complex proteins embedded in membranes. Both intermolecular and intramolecular PT in H‐bonded systems has received attention, theoretically and experimentally, using prototype molecules. It is found in rearrangement reactions, protein functions, and enzyme reactions or across proton channels and pumps. Investigations on the competition between intra‐ and intermolecular H bonding are discussed. Of particular interest is the H‐bond furcation, a common phenomenon in protein‐ligand binding. Multiple H‐bonding (H‐bond furcation) is observed in supramolecular structures.

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Section: Applications Of H‐bondingmentioning

confidence: 99%

H‐Bond: Τhe Chemistry‐Biology H‐Bridge

Pairas

Tsoungas

2016

ChemistrySelect

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“…NMR spectra were recorded on a Bruker ALX 300 spectrometer operating at 300 and 121. 5 (d, ppm) were reported with reference to SiMe 4 ( 1 H) and H 3 PO 4 ( 31 P). Infrared spectra were recorded on a Perkin-Elmer 16 PC FT-IR spectrophotometer and mass spectra on a Finnigan TSQ 7000 spectrometer.…”

Section: General Informationmentioning

confidence: 99%

“…Among various synthetic routes to multiporphyrin arrays [3], one convenient approach is to assemble ligand-appended porphyrins by coordination with appropriate external metal ions. In the past decade, metal-assisted self-assembly of pyridylporphyrins to give dimers and oligomers with interesting architecture and spectral properties has been studied extensively [3][4][5]. However, analogous multiporphyrins based on cyclometalated C^N ligands have not been well explored [6].…”

Section: Introductionmentioning

confidence: 99%

Bimetallic complexes with porphyrins containing a cyclometalated phenylpyridine group

Cheung

Zhang

Mak

et al. 2005

Journal of Organometallic Chemistry

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“…Polymers created by coordination chemistry have a long history, including, more recently, those with porphyrins. [36][37][38][39][40][41][42][43][44][45][46] For example, in combination with hydrogen bonding interactions, large rings of these chromophores can be formed in solution. 47,48 Cooperation between specific intermolecular recognition motifs in terms of the polymer backbone and nonspecific interactions such as π-stacking between porphyrins, can result in strong interactions between two or more polymer chains.…”

Section: Introductionmentioning

confidence: 99%

Formation and applications of stable 10 nm to 500 nm supramolecular porphyrinic materials

Drain

Bazzan

Milic

et al. 2005

Israel Journal of Chemistry

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Nanoscaled materials of organic dyes are of interest for a variety of potential applications because of the rich photonic properties that this class of molecules can impart. One mode to form such nanoscaled materials is via self‐organization and self‐assembly, using reasonably well understood methods in supramolecular chemistry. But there are inherent complexities that arise from the use of organic‐based supramolecular materials, including stability toward dioxygen, structural stability, and nanoarchitectures that may change with environmental conditions. Porphyrinoids have rich photonic properties yet are remarkably stable, have a rigid core, are readily functionalized, and metalation of the macrocycle can impart a plethora of optical, electronic, and magnetic properties. While there are many <10 nm porphyrinic assemblies, which may or may not self‐organize into crystals, there is a paucity of 10–500 nm porphyrinic materials that can be isolated and stored. A variety of strategies towards the latter nanoscopic porphyrinic materials are discussed in terms of design, construction, and nanoarchitecture. The hierarchical structures include colloids, nanorods, nanotubes, nanorings, and nano‐crystalline materials. This prolegomenon emphasizes the supramolecular chemistry, structure‐stability, and structure‐function relationships. The goal herein is to examine general trends and delineate general principles.

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Corrigenda

Cited by 17 publications

References 0 publications

H‐Bond: Τhe Chemistry‐Biology H‐Bridge

H‐Bond: Τhe Chemistry‐Biology H‐Bridge

Bimetallic complexes with porphyrins containing a cyclometalated phenylpyridine group

Formation and applications of stable 10 nm to 500 nm supramolecular porphyrinic materials

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