Chemistry - A European Journal

Cover image for Vol. 20 Issue 31

Editor: Neville Compton, Deputy Editors: Anne Deveson, Elisabeth Roedern

Impact Factor: 5.831

ISI Journal Citation Reports © Ranking: 2012: 21/152 (Chemistry Multidisciplinary)

Online ISSN: 1521-3765

Associated Title(s): Angewandte Chemie International Edition, Chemistry – An Asian Journal, ChemistryOpen, ChemBioChem, ChemCatChem, ChemElectroChem, ChemMedChem, ChemPhysChem, ChemPlusChem, ChemSusChem, European Journal of Inorganic Chemistry, European Journal of Organic Chemistry

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May 23, 2014

New Multichromophoric Ligand for Light Harvesting

New Multichromophoric Ligand for Light Harvesting

Light-harvesting antennae are of great importance for the development of efficient solar cells. Multichromophoric systems capable of harvesting light are of interest as they can be used in multicomponent systems in which the different chromophores are in close contact to favor energy and/or electron transfer, so that the excitation energy can be funneled to a specific acceptor. If one of these chromophores is also a good ligand for metal ions, new interesting properties can arise in a supramolecular system, such as control of the energy/electron transfer processes by changing the metal ion or the ability to generate supramolecular architectures and coordination polymers. To find out more about this subject read the paper by Marc Gingras, Aix-Marseille Université, France, Giacomo Bergamini, University of Bologna, Italy, and co-workers


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Recently Published Articles

  1. Glycerol as Suitable Solvent for Synthesis of Metallic Species and Catalysis

    Dr. Faouzi Chahdoura, Dr. Isabelle Favier and Prof. Montserrat Gómez

    Article first published online: 28 JUL 2014 | DOI: 10.1002/chem.201403534

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    Glycerol—a multitalented solvent: The present contribution discusses the foremost reported works involving glycerol as a solvent in the synthesis of organometallic complexes and metallic nanoparticles. This Minireview mainly focuses on their catalytic applications. A special emphasis is given to the ability of glycerol to immobilize nanometric species, which, in turn, enables a straightforward recycling of the catalytic phase.

  2. Cyclodextrin Polyrotaxanes as a Highly Modular Platform for the Development of Imaging Agents

    Dr. Jean Wilfried Fredy, Jérémy Scelle, Dr. Aurélie Guenet, Elodie Morel, Dr. Ségolène Adam de Beaumais, Dr. Mickaël Ménand, Dr. Valérie Marvaud, Dr. Célia S. Bonnet, Dr. Eva Tóth, Prof. Matthieu Sollogoub, Dr. Guillaume Vives and Prof. Bernold Hasenknopf

    Article first published online: 28 JUL 2014 | DOI: 10.1002/chem.201403635

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    Bimodal necklace: Selectively functionalized cyclodextrins with a bodipy fluorescent tag or a Gd3+ complex were synthetized and threaded onto a polyammonium chain to form polyrotaxanes (see figure). This modular supramolecular assembly makes an ideal platform for bimodal (fluorescent and MRI) imaging applications.

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    Dr. Simon Janody, Dr. Rodolphe Jazzar, Arnaud Comte, Philipp M. Holstein, Dr. Jean-Pierre Vors, Dr. Mark J. Ford and Prof. Dr. Olivier Baudoin

    Article first published online: 28 JUL 2014 | DOI: 10.1002/chem.201402907

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    Overcoming strain: A range of valuable 1-indanols and 1-indanamines containing a tertiary C1 atom were synthesized by intramolecular palladium(0)-catalyzed C(sp3)[BOND]H arylation (see scheme; PivOK=potassium pivalate). Reactivity and diastereoselectivity differences among the different substrates can be rationalized by conformational analysis.

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    Constraining peptides: The synthesis and evaluation of differently substituted cyclopropane pipecolic acids as new conformationally constrained amino acid templates for the generation of linear and cyclic peptidomimetics is described. One template was used to prepare a peptidomimetic that proved to be a nanomolar antagonist of the αvβ3 integrin (see scheme).

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    Article first published online: 28 JUL 2014 | DOI: 10.1002/chem.201403084

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    Visibly organized: The N,N′-bis[(3-hydroxy-4-pyron-2-yl)methyl]-N,N′-dimethylethylendiamine (Malten=L) ligand forms the stable [CuH−2L] species, which is able to bind Ca2+ but not Mg2+ in water at physiological pH 7.4. The binding of Ca2+ is visible to the naked eye. Ca2+ forms a trinuclear [Ca{Cu(H−2L)}2]2+ and tetranuclear [Ca{Cu(H−2L)}]24+ species having different colors in the solid state (see figure). Selected complexes induce DNA alterations compatible with its hydrolytic cleavages.