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Actualités de l'institut

juin 12 2023

Nature [Biogéochimie Moléculaire]

Abstract Eukaryotic life appears to have flourished surprisingly late in the history of our planet. This view is based on the low diversity of diagnostic eukaryotic fossils in marine sediments of mid-Proterozoic age (around 1,600 to 800 million years ago) and an absence of steranes, the molecular fossils of eukaryotic membrane sterols1,2. This scarcity of eukaryotic remains is difficult to...[En savoir plus]

juin 1 2023

Prix du meilleur Poster pour Paula Milán Rodríguez [IFM]

L'Institut de Chimie de Strasbourg (UMR 7177) a le plaisir de vous informer que Paula Milán Rodríguez (équipe IFM dirigée par M. Cecchini) s'est vu remettre le prix du meilleur Poster à l'occasion du XXIIIème Congrès du Groupe de Graphisme et Modélisation Moléculaire (GGMM) qui s’est déroulé à Toulouse du 15-17 Mai 2023 : https://ggmmfr.wordpress.com/   Téléchargement du poster:  "Markov State...[En savoir plus]

mai 26 2023

J. Am. Chem. Soc. [LSAMM, LCQ]

Abstract A multi-responsive receptor consisting of two (acridinium-Zn(II) porphyrin) conjugates has been designed. The binding constant between this receptor and a ditopic guest has been modulated (i) upon addition of nucleophiles converting acridinium moieties into the non-aromatic acridane derivatives and (ii) upon oxidation of the porphyrin units. A total of eight states has been probed for...[En savoir plus]

mai 25 2023

Organic Geochemistry [Biogéochimie Moléculaire]

Abstract Lipid biomarkers, such as the various bacteriohopanetetrol (BHT) isomers studied here, are useful tools in tracing bacterially mediated nitrogen and carbon cycle processes affecting greenhouse gas emissions, including the anaerobic oxidation of ammonia. Three BHT isomers occur commonly in the environment. By gas chromatography, BHT-34S elutes first; it is produced by numerous bacteria....[En savoir plus]

mai 23 2023

Chemical Communications [CLAC]

Abstract A bipyridine-strapped porphyrin was prepared using a remote template effect of alkali or transition metal cations in the bipyridine subunit to enhance the yield 10-fold. The flexibility of the bipyridine-strap also allowed the synthesis of a doubly strapped porphyrin. Reference Remote template effect in the synthesis of bipyridine-strapped porphyrins M. Berthe, Y. Kagawa, A....[En savoir plus]

mai 23 2023

Eur. J. Inorg. Chem. [CLAC]

Abstract Six- and seven-membered cyclic hydroxamic acids are found as terminal binding units in different families of siderophores, including exochelins and mycobactins. The simplest models of these preorganized chelating ligands were known, but their coordination chemistry with Fe3+, the target metal ion of siderophores, had never been reported. Four complexes were synthesized and studied: two...[En savoir plus]

mai 23 2023

Chemistry - A European Journal [LCSOM]

Abstract The   performance   of   six   newly   synthesized benzo[h]quinoline-derived  acetonitrilo  pentamethylcyclopentadienyl iridium(III) tetrakis(3,5-bis-trifluoromethylphenyl)borate salts bearing different substituents -X (-OMe, -H, -Cl, -Br, -NO2 and –(NO2)2) on the heterochelating ligand were evaluated in the dehydro-O-silylation of   benzyl   alcohol   and   the   monohydrosilylation  ...[En savoir plus]

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