Poly[μ6-(naphthalene-2,6-dicarboxylato)-bis(aqualithium)]

The title compound, [Li2(C12H6O4)(H2O)2]n, crystallizes with one half of the molecular entities in the asymmetric unit. The second half is gererated by inversion symmetry. The crystal structure has a layered arrangement built from distorted edge-sharing LiO3(OH)2 tetrahedra parallel to (100), with naphthalenedicarboxylate bridging the LiO3(OH)2 layers along the [100] direction. Hydrogen bonding between the water molecule and adjacent carboxylate groups consolidates the packing

Empowering organic‐based negative electrode material based on conjugated lithium carboxylate through molecular design

International audienc

Structural and spectroscopic investigations of redox active seven coordinate luminescent lanthanide complexes

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Seven-coordinate lanthanide complexes with a tripodal redox active ligand: structural, electrochemical and spectroscopic investigations

International audienc

Structural and spectroscopic investigations of redox active seven coordinate luminescent lanthanide complexes

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Luminescent pro-nitroxide lanthanide complexes for the detection of reactive oxygen species

International audienceThe DOTA-based ligand H3L (5) appended with a pro-nitroxide moiety has been synthesized. The europium and ytterbium complexes 5Ln show metal-centred luminescence. They react with ROS in aqueous media to give a transient iminonitroxide and a stable nitronylnitroxide radical authenticated by EPR, with change in luminescence

2D-Layered Lithium Carboxylate Based on Biphenyl Core as Negative Electrode for Organic Lithium-Ion Batteries

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Mesoscale Texturation of Organic-Based Negative Electrode Material through in Situ Proton Reduction of Conjugated Carboxylic Acid

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Lanthanide Complexes (GdIII and EuIII) Based on a DOTA-TEMPO Platform for Redox Monitoring via Relaxivity

International audienceThree lanthanide complexes (Ln=Gd, Eu) based on a DO3 A ([Ln(L-1)]) or DO2 A ([Ln(L2-3)](+)) platform appended by a redox active TEMPO-based arm were prepared. Complex [Ln(L-2)](+) shows an alkyne arm, offering the possibility of postfunctionalization by click reaction to yield [Ln(L-3)](+). The complexes demonstrate a redox response whereby the hydroxylamine, nitroxide and oxoammonium forms of the arm can be obtained in turn. Luminescence measurements on the europium complexes support an octadentate (L-1, L-3) or heptadentate (L-2) chelation by the ligand, with one water molecule in the inner coordination sphere. The relaxivity was determined from 20 kHz to 30 MHz by fast-field cycling NMR. The three Gd-III complexes under their hydroxylamine form [Gd(L-1)] and [Gd(L2-3)](+) show r(1) values of 7.0, 5.1 and 5.0 mM(-1) s(-1) (30 KHz), which increase to 8.8, 5.5 and 6.1 mM(-1) s(-1) in the nitroxide form. The radical complexes are not toxic against M21 cell lines, at least up to 40 mu M. By using EPR spectroscopy we establish that they do not penetrate the cells with the exception of [Eu(L-2)](+)