Les séminaires CulturChem

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    27.01.2020 - 27.01.2020

    Dipyrrin-based self-assembled architectures

    Séminaire du Dr Stéphane Baudron (CNRS-Université de Strasbourg UMR 7140)
    Abstract :
    Dipyrrins are bis-pyrrolic derivatives that can be rather easily synthesized and functionalized, forming monoanionic chelates under mild basic conditions. These features make them interesting ligands for the elaboration of discrete and infinite metal-organic architectures. In particular, our efforts have centered on...
    

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    16.12.2019 - 16.12.2019

    Tunable mixed-dimensional heterostructures by the chemical functionalization of 2D materials

    Séminaire du Prof. Alicia Forment-Aliaga (ICMol -Universitat de València)
    Abstract :
    Since the isolation of graphene in 2004, there has been an explosion in the search for other 2 dimensional (2D)materials. Among them, special attention has been paid to transition metal chalcogenides (TMCs) due to their broad spectrum of opto-electronic properties. One step forward the preparation of hybrid composites...
    

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    09.12.2019 - 09.12.2019

    From classic BODIPY to multifunctional Wazaby platform

    Séminaire du Prof. Ewen Bodio (ICMUB – Université Bourgogne-Franche-Comté)
    Abstract :
    . BODIPY is one of the most versatile fluorophore (high quantum yield, high brightness, stable, synthesizable at gram-scale…), but its emission in the visible region of light spectrum and its poor water-solubility hamper its use for in vivo applications. This lecture will describe how the optimization a BODIPY-based...
    

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    02.12.2019 - 02.12.2019

    Transition Metal Catalysis : A Sweet Perspective

    Résumé du Dr Thomas Lecourt (Laboratoire COBRA – INSA de Rouen Normandie)
    Abstract :
    Selective modification of complex sugars is a major challenge to design innovative chemical tools for glycobiology. In this context, our team has been involved for several years in the use of transition-metal catalysis to get a straightforward access to highly elaborated carbohydrate scaffolds. We more particularly...
    

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    25.11.2019 - 25.11.2019

    Secondary Phosphine Oxides as bifunctional ligands in catalysis

    Séminaire du Dr Piet Van Leeuwen (INSA- Toulouse)
    Abstract :
    In 1986 we introduced platinum complexes of diphenylphosphine oxide (SPO) as homogeneous catalysts for hydrogenation and hydroformylation reactions. As a phosphorus ligand it is very akin to triphenylphosphine, the workhorse ligand at the time in homogeneous catalysis. We speculated that the oxygen atom might play an additional role and facilitate...
    
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    18.11.2019 - 18.11.2019

    Chemistry of ethynylene-bridged porphyrinoids: Triphyrin (2.1.1), Porphycene, Porphyrin (2.1.2.1) and further expanded families

    Séminaire du Dr Hiroko Yamada (Nara Institute of Science and Technology, Ikoma)
    Abstract :
    Porphyrin is one of the representative aromatic compounds and has a planar molecular structure with four pyrrole units connected by four meso-carbons. We have focused on a dipyrrylethene unit, where two pyrrole units are connected by ethene bridge. By the presence of ethynylene-bridge, porphyrinoids have different...
    

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    04.11.2019 - 04.11.2019

    Probing the 3D structures of organic (macro/supra)molecules by ion mobility experiments : from fundamentals to analysis.

    Séminaire du Pr Pascal Gerbaux (University of Mons, Belgium)
    Abstract :
    Structural analysis is undoubtedly one of the most important aspects of current research. The vertiginous development of spectroscopic techniques over the last decades has allowed the scientific community to accumulate a great deal of success, by affording relevant data at the molecular level. As a striking example, mass spectrometry...
    

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    28.10.2019 - 28.10.2019

    Synthesis of Complex Molecules via Metal-Mediated Domino Reactions

    Séminaire du Dr Gaëlle Blond (Université de Strasbourg)
    Abstract :
    The design and elaboration of complex molecules from simple starting material in the minimum of operations is a challenging goal in organic synthesis. While most reactions allow for the formation of only one bond at a time, a particularly promising strategy to access complex molecules is to trigger domino reactions that convert simple...
    

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    21.10.2019 - 21.10.2019

    On discovery in catalysis

    Séminaire du Dr Frank Glorius (Westfälische Wilhelms-Universität Münster, Germany)
    Abstract :
    Catalysis is a key technology of our modern societies, since it allows for increased levels of selectivity and efficacy of chemical transformations. While significant progress can be made by rational design or engineered step-by-step improvements, many pressing challenges in the field require the discovery...
    

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    14.10.2019 - 14.10.2019

    Metal-Organic Architectures for Catalysis & Functional Materials

    Séminaire du Pr Alexander Kirillov (University of Lisbon, PT)
    Abstract :
    This presentation will highlight our recent research on the design and applications of a wide diversity of functional metal-organic architectures, including metal-organic frameworks (MOFs), coordination polymers (CPs), and multinuclear metal complexes. The following topics will be discussed. (1) Aqueous medium self-assembly generation...
    
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    07.10.2019 - 07.10.2019

    New heterocorroles and norcorroles from dipyrrin metal complexes

    Séminaire du Pr Hiroshi Shinokubo (Nagoya University)
    Abstract :
    We have developed a metal-templated strategy to access various novel porphyrinoids. Dipyrrin metal complexes are a nice precursor to prepare 10-heterocorroles containing various heteroatoms (O, N, S, Si, P, and B) as well as norcorroles. 10-Heterocorroles exhibit tunable optical and electronic properties depending on the heteroatoms....
    

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    30.09.2019 - 30.09.2019

    Electron-Triggered Metamorphism in Self- Assembled Metal-Organic Architectures

    Séminaire du Dr Christophe Bucher (ENS Lyon)
    Abstract :
    Stimuli-responsive self-assembled molecular materials are currently subject to intense research activity. This growing interest stems largely from the myriad of exciting applications envisioned for dynamic supramolecular assemblies, also known as dynamers, in materials science, sensing, catalysis and electronics. Enormous technologic interests...
    

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    23.09.2019 - 23.09.2019

    Iminophosphorane complexes: non innocence and reactivity

    Séminaire du Dr Audrey Auffrant (Ecole polytechnique)
    Abstract :
    Mixed ligands relying on the complementarity on different heteroatoms found numerous applications especially in catalysis. We are particularly interested in ligands incorporating the iminophosphorane (P=N) functionality from which we will present two original families, some of their metal complexes in order to discuss their non-innocence...
    

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    16.09.2019 - 16.09.2019

    Control of the composition and the surface chemistry of II-VI semiconductor nanoplatelets

    Séminaire du Dr Sandrine Ithurria (ESPCI)
    Abstract :
    2D colloidal II-VI semiconductor nanoplatelets (NPLs) are a unique class of nanoparticles with optical properties comparable to quantum well. Their thicknesses, the unique confined direction, are defined at the atomic scale all along the nanoparticles without roughness which provide them optical properties without inhomogeneous broadening. In a synthesis...
    

  • 09.09.2019 - 09.09.2019

    Symposium Second Year PhD Students – JCM 2019 Second part

    Symposium Second Year PhD Students
        Rodrigue MARQUANT (Laboratoire des BioMolécules)
         Cysteic acid-rich peptides as bioactive glycosaminoglycan mimics
     Laurent CATTIAUX (Laboratoire des BioMolécules)
         Supported synthesis of biological interest oligosaccharides
     Anna NOTARO (Institute of Chemistry for Life and Health Sciences)
         New Ru(II) Polypyridyl Complexes Containing Non-Innocent...
    
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    08.07.2019 - 08.07.2019

    The design and application of dissipative supramolecular materials.

    Séminaire du Dr Job Boekhoven (Technical University of Munich)
    Abstract :
    Why can’t we make materials like biology does? A car tire that regenerates itself like our skin does; Or a sweater that adapts to the cold like the hairs on our skin. Besides the obvious “biology is complex”, there is a trivial answer: most biological materials exist in states far away from equilibrium where processes like adaptation...
    

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    01.07.2019 - 01.07.2019

    Drug Discovery Challeng from Target to Clinical Candidate

    Séminaire du Dr Samir Jegham (SANOFI - AVENTIS R&D, Research Platform-IDD)
    Abstract :
    Early drug discovery has changed dramatically over the recent past. We moved from blockbusters/massive one-fit-all strategy, to a variety of personalized solutions and we are gradually embedding an integrated drug discovery mindset, based on translational sciences rationale.
     
    The challenge is the target. Once the...
    

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    21.01.2019 - 21.01.2019

    Polyoxometalate Composites – from water purification to energy storage

    Séminaire du Pr Carsten Streb (Ulm University, Allemagne)
    Abstract :
    The combination of polyoxometalates – molecular metal oxide anions – with functional substrates such as nanostructured carbon or porous silica will be described as a means to access (multi)functional composite materials. Tuning of each component will be reported as a facile means of controlling reactivity and developing materials with...