0000000001300284
AUTHOR
Marie-josé Penouilh
A 4-tert-butylcalix[4]arene tetrahydroxamate podand based on the 1-oxypiperidine-2-one (1,2-PIPO−) chelate. Self-assembly into a supramolecular ionophore driven by coordination of tetravalent zirconium or hafnium(iv)
An octadentate tetrahydroxamic calix[4]arene podand incorporating 1-hydroxypiperidine-2-one (1,2-PIPOH) binding units has been designed as a specific chelator for tetravalent metal cations like Zr4+ or Hf4+. This receptor, which can be considered as the first ever abiotic ligand possessing only cyclic six-membered hydroxamate groups, has been synthesized and characterized in its tetraprotonated form (1H4). Contrary to expectation, however, this new chelator did not form a 1 : 1 complex upon reaction with M(acac)4 (M = Zr and Hf; acac = acetylacetonate), but rather self-assembled into a dimeric species of 2 : 2 stoichiometry. The latter could be characterized in solution by mass spectrometry…
Identification of Three-Way DNA Junction Ligands through Screening of Chemical Libraries and Validation by Complementary in Vitro Assays
International audience; The human genome is replete with repetitive DNA sequences that can fold into thermodynamically stable secondary structures such as hairpins and quadruplexes. Cellular enzymes exist to cope with these structures whose stable accumulation would result in DNA damage through interference with DNA transactions such as transcription and replication. Therefore, the chemical stabilization of secondary DNA structures offers an attractive way to foster DNA transaction-associated damages to trigger cell death in proliferating cancer cells. While much emphasis has been recently given to DNA quadruplexes, we focused here on three-way DNA junctions (TWJ) and report on a strategy t…
Selectively Functionalized Constrained Polyazamacrocycles: Building Blocks for Multifunctional Chelating Agents
A new class of cross-bridged and side-bridged 1,4,7,10-tetraazacyclotridecanes (homocyclens) bearing an aminomethyl pendant arm on the carbon skeleton has been prepared. The regioselectivity of the quaternization of the bis-aminal intermediates is discussed on the basis of X-ray diffraction and NMR experiments. These new polyazamacrocycles are valuable precursors of bifunctional chelating agents for applications in nuclear medicine.
A Route toward (Aminomethyl)cyclopentadienide Ligands and Their Group 4 Metal Complexes
International audience
Monitoring of transglutaminase crosslinking reaction by 1H NMR spectroscopy on model substrates
International audience; A new method based on 1H NMR spectroscopy was developed for monitoring transglutaminase crosslinking reaction with model molecules (CBZ-Gln-Gly and N-α-acetyl-lysine). The transglutaminase reaction led to the appearance of new resonances on NMR spectrum as well as significant decrease in others. The new observed resonances, originated from newly formed ɛ-(γ-glutamyl)lysine isopeptide bonds, evidence the enzymatic reaction and allow to quantify the ɛ-(γ-glutamyl)lysine fragment. Moreover, the decrease in resonance intensity, originated from lysine, permit to determine the crosslinking degree. These results obtained by 1H NMR spectroscopy can be used as an alternative …
Gold(I) Complexes of Ferrocenyl Polyphosphines: Aurophilic Gold Chloride Formation and Phosphine-Concerted Shuttling of a Dinuclear [ClAu···AuCl] Fragment
International audience; A smart steric control of the metallocene backbone in bis- and poly(phosphino)ferrocene ligands favors intramolecular aurophilic interactions between [AuCl] fragments in polynuclear gold(I) complexes. We synthesized and characterized by multinuclear NMR and X-ray diffraction analysis mono-, di-, and polynuclear gold complexes of constrained ferrocenyl diphosphines, which bear either bulky tert-butyl groups or more flexible siloxane substituents at the cyclopentadienyl rings. The complexes meso-1,1'-bis-(diphenylphosphino)-3,3'-di-tert-butylferrocene (4-m), rac-1,1'-bis[bis-(5-methy1-2-furyl)phosphino]-3,3'-di-tert-butyfferrocene (5-r), and rac-1,1'-bis ( diphenylphos…
Unsymmetrically Substituted Bis(phosphino)Ferrocenes Triggering Through-Space 31(P, P′)-Nuclear Spin Couplings and Encapsulating Coinage Metal Cations
International audience; We describe unsymmetrically substituted di-tert-butylated 1,1'-bis(phosphino)ferrocenes, with phosphino substituents R = [5-methyl]-2-furyl = Fu, and R' = phenyl (4a), i-propyl (4b). A modular synthetic approach was applied from the di-tert-butylated ferrocene platform (1), which lead to the formation of new diphosphines by using 1,1'bis(diiodo)-3,3'-bis(tert-butyl)ferrocene (2) as synthetic precursor. In contrast to the cousin non-alkylated unsymmetrically substituted diphosphino-ferrocenes which were reported up to now, these diphosphines showed strong (31 P, P')nonbonded (" ug-p e") nuclear spin-spin coupling. The strength of such internuclear spin-spin coupling c…
Cover Feature: A Route toward (Aminomethyl)cyclopentadienide Ligands and Their Group 4 Metal Complexes (Eur. J. Inorg. Chem. 34/2018)
Converging and Diverging Synthetic Strategies to Tetradentate (N,N′)-Diaminomethyl,(P,P′)-Ferrocenyl Ligands: Influence of tert-Butyl Groups on Ferrocene Backbone Conformation
Hexasubstituted hybrid tetradentate (N,N′,P,P′)-ferrocenes bearing phosphino and aminomethyl groups, plus hindering tert-butyl moieties, were synthesized by using two different strategies: a “diverging” synthesis involving successive functionalization of preformed di-tert-butylated ferrocene and a “converging” assembly of the species from appropriately substituted cyclopentadienyl rings. While the new cyclopentadienyl salts formed are of interest, their assembly with iron dichloride used as a “converging” way to produce tetradentate ferrocene ligands presented several drawbacks. Conversely, the synthesis of new tert-butylated (aminomethyl)ferrocene derivatives was found convenient to furthe…
CCDC 1433505: Experimental Crystal Structure Determination
Related Article: Fatima Allouch, Nejib Dwadnia, Nikolay V. Vologdin, Yurii V. Svyaschenko, Hélène Cattey, Marie-José Penouilh, Julien Roger, Daoud Naoufal, Ridha Ben Salem, Nadine Pirio, Jean-Cyrille Hierso|2015|Organometallics|34|5015|doi:10.1021/acs.organomet.5b00601
CCDC 1433497: Experimental Crystal Structure Determination
Related Article: Fatima Allouch, Nejib Dwadnia, Nikolay V. Vologdin, Yurii V. Svyaschenko, Hélène Cattey, Marie-José Penouilh, Julien Roger, Daoud Naoufal, Ridha Ben Salem, Nadine Pirio, Jean-Cyrille Hierso|2015|Organometallics|34|5015|doi:10.1021/acs.organomet.5b00601
CCDC 1433499: Experimental Crystal Structure Determination
Related Article: Fatima Allouch, Nejib Dwadnia, Nikolay V. Vologdin, Yurii V. Svyaschenko, Hélène Cattey, Marie-José Penouilh, Julien Roger, Daoud Naoufal, Ridha Ben Salem, Nadine Pirio, Jean-Cyrille Hierso|2015|Organometallics|34|5015|doi:10.1021/acs.organomet.5b00601
CCDC 1825467: Experimental Crystal Structure Determination
Related Article: Quentin Bonnin, Sook-Yen Wong, Cedric Balan, Virginie Comte, Raluca Malacea, Marie-Jose Penouilh, Philippe Richard, Gerald Kehr, Adrien T. Normand, Gerhard Erker, Pierre Le Gendre|2018|Eur.J.Inorg.Chem.|2018|3813|doi:10.1002/ejic.201800636
CCDC 1825466: Experimental Crystal Structure Determination
Related Article: Quentin Bonnin, Sook-Yen Wong, Cedric Balan, Virginie Comte, Raluca Malacea, Marie-Jose Penouilh, Philippe Richard, Gerald Kehr, Adrien T. Normand, Gerhard Erker, Pierre Le Gendre|2018|Eur.J.Inorg.Chem.|2018|3813|doi:10.1002/ejic.201800636
CCDC 1433506: Experimental Crystal Structure Determination
Related Article: Fatima Allouch, Nejib Dwadnia, Nikolay V. Vologdin, Yurii V. Svyaschenko, Hélène Cattey, Marie-José Penouilh, Julien Roger, Daoud Naoufal, Ridha Ben Salem, Nadine Pirio, Jean-Cyrille Hierso|2015|Organometallics|34|5015|doi:10.1021/acs.organomet.5b00601
CCDC 1433503: Experimental Crystal Structure Determination
Related Article: Fatima Allouch, Nejib Dwadnia, Nikolay V. Vologdin, Yurii V. Svyaschenko, Hélène Cattey, Marie-José Penouilh, Julien Roger, Daoud Naoufal, Ridha Ben Salem, Nadine Pirio, Jean-Cyrille Hierso|2015|Organometallics|34|5015|doi:10.1021/acs.organomet.5b00601
CCDC 1433501: Experimental Crystal Structure Determination
Related Article: Fatima Allouch, Nejib Dwadnia, Nikolay V. Vologdin, Yurii V. Svyaschenko, Hélène Cattey, Marie-José Penouilh, Julien Roger, Daoud Naoufal, Ridha Ben Salem, Nadine Pirio, Jean-Cyrille Hierso|2015|Organometallics|34|5015|doi:10.1021/acs.organomet.5b00601
CCDC 1433498: Experimental Crystal Structure Determination
Related Article: Fatima Allouch, Nejib Dwadnia, Nikolay V. Vologdin, Yurii V. Svyaschenko, Hélène Cattey, Marie-José Penouilh, Julien Roger, Daoud Naoufal, Ridha Ben Salem, Nadine Pirio, Jean-Cyrille Hierso|2015|Organometallics|34|5015|doi:10.1021/acs.organomet.5b00601
CCDC 1433504: Experimental Crystal Structure Determination
Related Article: Fatima Allouch, Nejib Dwadnia, Nikolay V. Vologdin, Yurii V. Svyaschenko, Hélène Cattey, Marie-José Penouilh, Julien Roger, Daoud Naoufal, Ridha Ben Salem, Nadine Pirio, Jean-Cyrille Hierso|2015|Organometallics|34|5015|doi:10.1021/acs.organomet.5b00601
CCDC 1825460: Experimental Crystal Structure Determination
Related Article: Quentin Bonnin, Sook-Yen Wong, Cedric Balan, Virginie Comte, Raluca Malacea, Marie-Jose Penouilh, Philippe Richard, Gerald Kehr, Adrien T. Normand, Gerhard Erker, Pierre Le Gendre|2018|Eur.J.Inorg.Chem.|2018|3813|doi:10.1002/ejic.201800636
CCDC 1009630: Experimental Crystal Structure Determination
Related Article: Vincent Rampazzi, Julien Roger, Régine Amardeil, Marie-José Penouilh, Philippe Richard, Paul Fleurat-Lessard, and Jean-Cyrille Hierso|2016|Inorg.Chem.|55|10907|doi:10.1021/acs.inorgchem.6b01318
CCDC 1438419: Experimental Crystal Structure Determination
Related Article: Vincent Rampazzi, Julien Roger, Régine Amardeil, Marie-José Penouilh, Philippe Richard, Paul Fleurat-Lessard, and Jean-Cyrille Hierso|2016|Inorg.Chem.|55|10907|doi:10.1021/acs.inorgchem.6b01318
CCDC 1009631: Experimental Crystal Structure Determination
Related Article: Vincent Rampazzi, Julien Roger, Régine Amardeil, Marie-José Penouilh, Philippe Richard, Paul Fleurat-Lessard, and Jean-Cyrille Hierso|2016|Inorg.Chem.|55|10907|doi:10.1021/acs.inorgchem.6b01318
CCDC 1825463: Experimental Crystal Structure Determination
Related Article: Quentin Bonnin, Sook-Yen Wong, Cedric Balan, Virginie Comte, Raluca Malacea, Marie-Jose Penouilh, Philippe Richard, Gerald Kehr, Adrien T. Normand, Gerhard Erker, Pierre Le Gendre|2018|Eur.J.Inorg.Chem.|2018|3813|doi:10.1002/ejic.201800636
CCDC 1825459: Experimental Crystal Structure Determination
Related Article: Quentin Bonnin, Sook-Yen Wong, Cedric Balan, Virginie Comte, Raluca Malacea, Marie-Jose Penouilh, Philippe Richard, Gerald Kehr, Adrien T. Normand, Gerhard Erker, Pierre Le Gendre|2018|Eur.J.Inorg.Chem.|2018|3813|doi:10.1002/ejic.201800636
CCDC 983068: Experimental Crystal Structure Determination
Related Article: Pawel Jewula, Jean-Claude Chambron, Marie-José Penouilh, Yoann Rousselin, Michel Meyer|2014|RSC Advances|4|22743|doi:10.1039/C4RA00977K
CCDC 1825465: Experimental Crystal Structure Determination
Related Article: Quentin Bonnin, Sook-Yen Wong, Cedric Balan, Virginie Comte, Raluca Malacea, Marie-Jose Penouilh, Philippe Richard, Gerald Kehr, Adrien T. Normand, Gerhard Erker, Pierre Le Gendre|2018|Eur.J.Inorg.Chem.|2018|3813|doi:10.1002/ejic.201800636
CCDC 1438417: Experimental Crystal Structure Determination
Related Article: Vincent Rampazzi, Julien Roger, Régine Amardeil, Marie-José Penouilh, Philippe Richard, Paul Fleurat-Lessard, and Jean-Cyrille Hierso|2016|Inorg.Chem.|55|10907|doi:10.1021/acs.inorgchem.6b01318
CCDC 1433502: Experimental Crystal Structure Determination
Related Article: Fatima Allouch, Nejib Dwadnia, Nikolay V. Vologdin, Yurii V. Svyaschenko, Hélène Cattey, Marie-José Penouilh, Julien Roger, Daoud Naoufal, Ridha Ben Salem, Nadine Pirio, Jean-Cyrille Hierso|2015|Organometallics|34|5015|doi:10.1021/acs.organomet.5b00601
CCDC 1433500: Experimental Crystal Structure Determination
Related Article: Fatima Allouch, Nejib Dwadnia, Nikolay V. Vologdin, Yurii V. Svyaschenko, Hélène Cattey, Marie-José Penouilh, Julien Roger, Daoud Naoufal, Ridha Ben Salem, Nadine Pirio, Jean-Cyrille Hierso|2015|Organometallics|34|5015|doi:10.1021/acs.organomet.5b00601
CCDC 1433507: Experimental Crystal Structure Determination
Related Article: Fatima Allouch, Nejib Dwadnia, Nikolay V. Vologdin, Yurii V. Svyaschenko, Hélène Cattey, Marie-José Penouilh, Julien Roger, Daoud Naoufal, Ridha Ben Salem, Nadine Pirio, Jean-Cyrille Hierso|2015|Organometallics|34|5015|doi:10.1021/acs.organomet.5b00601
CCDC 1009629: Experimental Crystal Structure Determination
Related Article: Vincent Rampazzi, Julien Roger, Régine Amardeil, Marie-José Penouilh, Philippe Richard, Paul Fleurat-Lessard, and Jean-Cyrille Hierso|2016|Inorg.Chem.|55|10907|doi:10.1021/acs.inorgchem.6b01318
CCDC 1825462: Experimental Crystal Structure Determination
Related Article: Quentin Bonnin, Sook-Yen Wong, Cedric Balan, Virginie Comte, Raluca Malacea, Marie-Jose Penouilh, Philippe Richard, Gerald Kehr, Adrien T. Normand, Gerhard Erker, Pierre Le Gendre|2018|Eur.J.Inorg.Chem.|2018|3813|doi:10.1002/ejic.201800636
CCDC 1825461: Experimental Crystal Structure Determination
Related Article: Quentin Bonnin, Sook-Yen Wong, Cedric Balan, Virginie Comte, Raluca Malacea, Marie-Jose Penouilh, Philippe Richard, Gerald Kehr, Adrien T. Normand, Gerhard Erker, Pierre Le Gendre|2018|Eur.J.Inorg.Chem.|2018|3813|doi:10.1002/ejic.201800636
CCDC 1825458: Experimental Crystal Structure Determination
Related Article: Quentin Bonnin, Sook-Yen Wong, Cedric Balan, Virginie Comte, Raluca Malacea, Marie-Jose Penouilh, Philippe Richard, Gerald Kehr, Adrien T. Normand, Gerhard Erker, Pierre Le Gendre|2018|Eur.J.Inorg.Chem.|2018|3813|doi:10.1002/ejic.201800636
CCDC 1438418: Experimental Crystal Structure Determination
Related Article: Vincent Rampazzi, Julien Roger, Régine Amardeil, Marie-José Penouilh, Philippe Richard, Paul Fleurat-Lessard, and Jean-Cyrille Hierso|2016|Inorg.Chem.|55|10907|doi:10.1021/acs.inorgchem.6b01318
CCDC 1825464: Experimental Crystal Structure Determination
Related Article: Quentin Bonnin, Sook-Yen Wong, Cedric Balan, Virginie Comte, Raluca Malacea, Marie-Jose Penouilh, Philippe Richard, Gerald Kehr, Adrien T. Normand, Gerhard Erker, Pierre Le Gendre|2018|Eur.J.Inorg.Chem.|2018|3813|doi:10.1002/ejic.201800636
CCDC 1433508: Experimental Crystal Structure Determination
Related Article: Fatima Allouch, Nejib Dwadnia, Nikolay V. Vologdin, Yurii V. Svyaschenko, Hélène Cattey, Marie-José Penouilh, Julien Roger, Daoud Naoufal, Ridha Ben Salem, Nadine Pirio, Jean-Cyrille Hierso|2015|Organometallics|34|5015|doi:10.1021/acs.organomet.5b00601