0000000000524045

AUTHOR

Audrey Auffrant

showing 15 related works from this author

Titanium imido complexes stabilised by bis(iminophosphoranyl)methanide ligands: the influence of N-substituents on solution dynamics and reactivity

2014

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…

chemistry.chemical_classificationLigandAlkyneNuclear magnetic resonance spectroscopyCrystal structurePhotochemistryMedicinal chemistryAdductInorganic Chemistrychemistry.chemical_compoundchemistryPhenylacetyleneReactivity (chemistry)Hydroamination[CHIM.OTHE]Chemical Sciences/OtherComputingMilieux_MISCELLANEOUS
researchProduct

Phosphasalen group IV metal complexes: synthesis, characterization and ring opening polymerization of lactide.

2020

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…

010402 general chemistryLIGANDS SYNTHESIS01 natural sciencesRing-opening polymerizationCoordination complexInorganic ChemistryINDIUM COMPLEXESOctahedral molecular geometry[CHIM]Chemical SciencesSALALEN COMPLEXESCYCLIC ESTERSCOORDINATION CHEMISTRYZIRCONIUM COMPLEXES; COORDINATION CHEMISTRY; SALALEN COMPLEXES; LIGANDS SYNTHESIS; INDIUM COMPLEXES; SALEN LIGANDS; CYCLIC ESTERS; INITIATORS; CATALYSIS; ALUMINUMchemistry.chemical_classification010405 organic chemistryLigandCATALYSISCationic polymerizationNuclear magnetic resonance spectroscopyALUMINUM0104 chemical sciencesCrystallographychemistrySALEN LIGANDSAlkoxy groupINITIATORS[CHIM.OTHE]Chemical Sciences/OtherIsomerizationZIRCONIUM COMPLEXESDalton transactions (Cambridge, England : 2003)
researchProduct

CCDC 987356: Experimental Crystal Structure Determination

2014

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

Space GroupCrystallographyCrystal System(28-dimethyl-4466-tetraphenyl-37-diaza-46-diphosphanona-36-dien-5-yl)-(tetrahydrofuran)-lithiumCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 1978292: Experimental Crystal Structure Determination

2020

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

Space GroupCrystallography22'-[12-phenylenebis(PP-diphenylphosphorimidoyl)]bis(46-di-t-butylphenol) 22'-[(4-bromo-12-phenylene)bis(PP-diphenylphosphorimidoyl)]bis(46-di-t-butylphenol) pentane solvateCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 1978293: Experimental Crystal Structure Determination

2020

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

Space GroupCrystallographyCrystal System22'-(1166-tetraphenyl-25-diazonia-16-diphosphahexa-15-diene-16-diyl)bis(46-di-t-butylphenolate) dichloromethane solvateCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 1978288: Experimental Crystal Structure Determination

2020

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

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parameters{22'-[12-phenylenebis(PP-diphenylphosphorimidoyl)]bis(46-di-t-butylphenolato)}-bis(propan-2-olato)-zirconium(iv) dichloromethane unknown solvateExperimental 3D Coordinates
researchProduct

CCDC 1978291: Experimental Crystal Structure Determination

2020

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

Space GroupCrystallographyCrystal System22'-(1177-tetraphenyl-26-diazonia-17-diphosphahepta-16-diene-17-diyl)bis(46-di-t-butylphenolate)Crystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 1978295: Experimental Crystal Structure Determination

2020

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

bis(N-methylmethanaminato)-{22'-[propane-13-diylbis(PP-diphenylphosphorimidoyl)]bis(46-di-t-butylphenolato)}-titanium(iv)Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 1978290: Experimental Crystal Structure Determination

2020

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

Space GroupCrystallography{22'-[ethane-12-diylbis(PP-diphenylphosphorimidoyl)]bis(46-di-t-butylphenolato)}-bis(propan-2-olato)-zirconium(iv) dichloromethane solvateCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 1978289: Experimental Crystal Structure Determination

2020

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

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parametersbis(mu-22'-[propane-13-diylbis(PP-diphenylphosphorimidoyl)]bis(46-di-t-butylphenolato))-tetrakis(benzyl)-di-zirconium(iv) unknown solvateExperimental 3D Coordinates
researchProduct

CCDC 987359: Experimental Crystal Structure Determination

2014

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

Space GroupCrystallographyCrystal System(t-butylimino)-chloro-(2288-tetramethyl-4466-tetraphenyl-37-diaza-46-diphosphanona-36-dien-5-yl)-titanium(iv) unknown solvateCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 1978287: Experimental Crystal Structure Determination

2020

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

Space GroupCrystallographydibenzyl-{22'-[ethane-12-diylbis(PP-diphenylphosphorimidoyl)]bis(46-di-t-butylphenolato)}-zirconium(iv) unknown solvateCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 987357: Experimental Crystal Structure Determination

2014

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

Space GroupCrystallographyCrystal SystemCrystal Structure(tetrahydrofuran)-(2288-tetramethyl-4466-tetraphenyl-37-diaza-46-diphosphanona-36-dien-5-yl)-lithiumCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 987358: Experimental Crystal Structure Determination

2014

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

Space GroupCrystallography(bis(NPP-triphenylphosphorimidoyl)methyl)-chloro-(t-butylimino)-titanium(iv)Crystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 1978294: Experimental Crystal Structure Determination

2020

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

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parametersbenzyl-{17-bis[35-di-t-butyl-2-(oxido)phenyl]-1177-tetraphenyl-26-diaza-17-diphosphahepta-16-dien-3-yl}-zirconium(iv) n-hexane solvateExperimental 3D Coordinates
researchProduct