0000000001309474
AUTHOR
Bénédicte Douziech
Aza and cyanobridged tripodal dinuclear copper(II) complexes: Electrochemical studies and structural evidence for an original azacyanocarbanion
International audience; The reactivity of the mononuclear [Cu(TMPA)(L)] n+ complex (TMPA: tris(2-methylpyridine) amine, L: CH3CN, H2O) towards two different bridging species (tetracyanoethylene, 4,40-bipyridine) was investigated. The dinuclear complex [(mu-4,40-bipy)Cu-II(TMPA)(2)](CF3SO3)(4) (1) was synthesised and analysed by Xray diffraction (XRD). Magnetic studies revealed that this derivative displays very weak antiferromagnetic interactions between the two metal centres (2J = -0.69 cm(-1)). Solution studies (EPR spectroscopy and voltammetry) evidenced the lability of the bridged neutral bipyridine ligand in acetonitrile. The reaction of TCNE (TCNE: tetracyanoethylene) with the copper(…
“Two-Story” Calix[6]arene-Based Zinc and Copper Complexes: Structure, Properties, and O 2 Binding
International audience; A new “two-story” calix[6]arene-based ligand was synthesized, and its coordination chemistry was explored. It presents a tren cap connected to the calixarene small rim through three amido spacers. X-ray diffraction studies of its metal complexes revealed a six-coordinate ZnII complex with all of the carbonyl groups of the amido arms bound and a five-coordinate CuII complex with only one amido arm bound. These dicationic complexes were poorly responsive toward exogenous neutral donors, but the amido arms were readily displaced by small anions or deprotonated with a base to give the corresponding monocationic complexes. Cyclic voltammetry in various solvents showed a r…
Nickel precursors based on diamagnetic and paramagnetic di(imine)pyridine ligands for magnetic materials: Synthesis, X-ray structures and magnetic studies
International audience; Structural characterization and spectroscopic studies of the (2-acetyl-6-(1-TEMPO-imino)ethyl)pyridine (pat) and the 2,6-bis(1-TEMPO-imino)ethyl)pyridine (pbtMe) ligands are presented. Their electrochemical properties are also discussed. Two new nickel complexes, [NiII(dip)(CH3CN)(H2O)2](BF4)2 (1) (dip = 2,6-(di-iminepyridine)) and [NiII(pbtMe)(CH3CN)3](BF4)2 (2) have been characterized by X-ray diffraction. The reaction of 1 with the tetraethyl ammonium pentacyanopropenide salt (Et4N)(pcp) affords the new compound [NiII(pcp)(dip)(CH3CN)](pcp) (3) for which X-ray diffraction studies evidence an usual bridging μ2 coordination mode for the pentacyanopropenide anion, le…
CCDC 1823715: Experimental Crystal Structure Determination
Related Article: Nathalie Cosquer, Emeric Lefebvre, Bénédicte Douziech, Sylvie Houille, François Michaud, Carlos J. Gómez-García, Françoise Conan|2018|Inorg.Chim.Acta|479|1|doi:10.1016/j.ica.2018.04.026
CCDC 1823714: Experimental Crystal Structure Determination
Related Article: Nathalie Cosquer, Emeric Lefebvre, Bénédicte Douziech, Sylvie Houille, François Michaud, Carlos J. Gómez-García, Françoise Conan|2018|Inorg.Chim.Acta|479|1|doi:10.1016/j.ica.2018.04.026
CCDC 1823713: Experimental Crystal Structure Determination
Related Article: Nathalie Cosquer, Emeric Lefebvre, Bénédicte Douziech, Sylvie Houille, François Michaud, Carlos J. Gómez-García, Françoise Conan|2018|Inorg.Chim.Acta|479|1|doi:10.1016/j.ica.2018.04.026
CCDC 1541407: Experimental Crystal Structure Determination
Related Article: Gaël De Leener, Diana Over, Coryse Smet, Damien Cornut, Ana Gabriela Porras-Gutierrez, Isidoro López, Bénédicte Douziech, Nicolas Le Poul, Filip Topić, Kari Rissanen, Yves Le Mest, Ivan Jabin, and Olivia Reinaud|2017|Inorg.Chem.|56|10971|doi:10.1021/acs.inorgchem.7b01225
CCDC 1541408: Experimental Crystal Structure Determination
Related Article: Gaël De Leener, Diana Over, Coryse Smet, Damien Cornut, Ana Gabriela Porras-Gutierrez, Isidoro López, Bénédicte Douziech, Nicolas Le Poul, Filip Topić, Kari Rissanen, Yves Le Mest, Ivan Jabin, and Olivia Reinaud|2017|Inorg.Chem.|56|10971|doi:10.1021/acs.inorgchem.7b01225
CCDC 1823712: Experimental Crystal Structure Determination
Related Article: Nathalie Cosquer, Emeric Lefebvre, Bénédicte Douziech, Sylvie Houille, François Michaud, Carlos J. Gómez-García, Françoise Conan|2018|Inorg.Chim.Acta|479|1|doi:10.1016/j.ica.2018.04.026