0000000001302170
AUTHOR
Audrey Auffrant
Titanium imido complexes stabilised by bis(iminophosphoranyl)methanide ligands: the influence of N-substituents on solution dynamics and reactivity
Terminal titanium imido complexes of the general formula [Ti(N(t)Bu)Cl{CH(Ph2PNR)2}] 4 (R = Ph, (i)Pr, (t)Bu) are reported. These compounds were synthesized from the corresponding Li adducts 3 of BIPMH (bis(iminophosphoranyl)methanide) and Mountford's complex [Ti(N(t)Bu)Cl2(Py)3]. The crystal structures of two of the Ti complexes (R = Ph, (t)Bu) and two of the Li compounds (R = (i)Pr, (t)Bu) are reported. Dynamic solution NMR spectroscopy reveals a dynamic isomerisation process in the case of the Ti complex 4c (R = (t)Bu). DFT studies showed that this dynamic process comes from steric repulsion between the imido ligand and the (t)Bu N-substituents on the BIPMH ligand. Complexes 4 were teste…
Phosphasalen group IV metal complexes: synthesis, characterization and ring opening polymerization of lactide.
International audience; We report the synthesis of a series of Zr and Ti complexes bearing phosphasalen which differs from salen by the incorporation of two P atoms in the ligand backbone. The reaction of phosphasalen proligands (1a-1c)H2 with Zr(CH2Ph)4 led to different products depending on the nature of the N,N-linker in the ligand. In case of ethylene-linked phosphasalen, octahedral Zr complex 2a formed as a single stereoisomer in trans geometry. With the phenylene linker, it was shown by dynamic NMR spectroscopy that complex 2b exists as a mixture of trans and cis-β isomers in solution, both enantiomers (Δ and Λ) of the cis-β isomer being in fast equilibrium with respect to the NMR tim…
CCDC 987356: Experimental Crystal Structure Determination
Related Article: Adrien T. Normand, Alexandre Massard, Philippe Richard, Coline Canovas, Cédric Balan, Michel Picquet, Audrey Auffrant, Pierre Le Gendre|2014|Dalton Trans.|43|15098|doi:10.1039/C4DT00746H
CCDC 1978292: Experimental Crystal Structure Determination
Related Article: Adrien T. Normand, Raluca Malacea-Kabbara, Rosita Lapenta, Aymeric Dajnak, Philippe Richard, Hélène Cattey, Anaëlle Bolley, Alfonso Grassi, Stefano Milione, Audrey Auffrant, Samuel Dagorne, Pierre Le Gendre|2020|Dalton Trans.|49|6989|doi:10.1039/D0DT00972E
CCDC 1978293: Experimental Crystal Structure Determination
Related Article: Adrien T. Normand, Raluca Malacea-Kabbara, Rosita Lapenta, Aymeric Dajnak, Philippe Richard, Hélène Cattey, Anaëlle Bolley, Alfonso Grassi, Stefano Milione, Audrey Auffrant, Samuel Dagorne, Pierre Le Gendre|2020|Dalton Trans.|49|6989|doi:10.1039/D0DT00972E
CCDC 1978288: Experimental Crystal Structure Determination
Related Article: Adrien T. Normand, Raluca Malacea-Kabbara, Rosita Lapenta, Aymeric Dajnak, Philippe Richard, Hélène Cattey, Anaëlle Bolley, Alfonso Grassi, Stefano Milione, Audrey Auffrant, Samuel Dagorne, Pierre Le Gendre|2020|Dalton Trans.|49|6989|doi:10.1039/D0DT00972E
CCDC 1978291: Experimental Crystal Structure Determination
Related Article: Adrien T. Normand, Raluca Malacea-Kabbara, Rosita Lapenta, Aymeric Dajnak, Philippe Richard, Hélène Cattey, Anaëlle Bolley, Alfonso Grassi, Stefano Milione, Audrey Auffrant, Samuel Dagorne, Pierre Le Gendre|2020|Dalton Trans.|49|6989|doi:10.1039/D0DT00972E
CCDC 1978295: Experimental Crystal Structure Determination
Related Article: Adrien T. Normand, Raluca Malacea-Kabbara, Rosita Lapenta, Aymeric Dajnak, Philippe Richard, Hélène Cattey, Anaëlle Bolley, Alfonso Grassi, Stefano Milione, Audrey Auffrant, Samuel Dagorne, Pierre Le Gendre|2020|Dalton Trans.|49|6989|doi:10.1039/D0DT00972E
CCDC 1978290: Experimental Crystal Structure Determination
Related Article: Adrien T. Normand, Raluca Malacea-Kabbara, Rosita Lapenta, Aymeric Dajnak, Philippe Richard, Hélène Cattey, Anaëlle Bolley, Alfonso Grassi, Stefano Milione, Audrey Auffrant, Samuel Dagorne, Pierre Le Gendre|2020|Dalton Trans.|49|6989|doi:10.1039/D0DT00972E
CCDC 1978289: Experimental Crystal Structure Determination
Related Article: Adrien T. Normand, Raluca Malacea-Kabbara, Rosita Lapenta, Aymeric Dajnak, Philippe Richard, Hélène Cattey, Anaëlle Bolley, Alfonso Grassi, Stefano Milione, Audrey Auffrant, Samuel Dagorne, Pierre Le Gendre|2020|Dalton Trans.|49|6989|doi:10.1039/D0DT00972E
CCDC 987359: Experimental Crystal Structure Determination
Related Article: Adrien T. Normand, Alexandre Massard, Philippe Richard, Coline Canovas, Cédric Balan, Michel Picquet, Audrey Auffrant, Pierre Le Gendre|2014|Dalton Trans.|43|15098|doi:10.1039/C4DT00746H
CCDC 1978287: Experimental Crystal Structure Determination
Related Article: Adrien T. Normand, Raluca Malacea-Kabbara, Rosita Lapenta, Aymeric Dajnak, Philippe Richard, Hélène Cattey, Anaëlle Bolley, Alfonso Grassi, Stefano Milione, Audrey Auffrant, Samuel Dagorne, Pierre Le Gendre|2020|Dalton Trans.|49|6989|doi:10.1039/D0DT00972E
CCDC 987357: Experimental Crystal Structure Determination
Related Article: Adrien T. Normand, Alexandre Massard, Philippe Richard, Coline Canovas, Cédric Balan, Michel Picquet, Audrey Auffrant, Pierre Le Gendre|2014|Dalton Trans.|43|15098|doi:10.1039/C4DT00746H
CCDC 987358: Experimental Crystal Structure Determination
Related Article: Adrien T. Normand, Alexandre Massard, Philippe Richard, Coline Canovas, Cédric Balan, Michel Picquet, Audrey Auffrant, Pierre Le Gendre|2014|Dalton Trans.|43|15098|doi:10.1039/C4DT00746H
CCDC 1978294: Experimental Crystal Structure Determination
Related Article: Adrien T. Normand, Raluca Malacea-Kabbara, Rosita Lapenta, Aymeric Dajnak, Philippe Richard, Hélène Cattey, Anaëlle Bolley, Alfonso Grassi, Stefano Milione, Audrey Auffrant, Samuel Dagorne, Pierre Le Gendre|2020|Dalton Trans.|49|6989|doi:10.1039/D0DT00972E