0000000001299834

AUTHOR

Alfonso Grassi

showing 19 related works from this author

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)
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Phenoxyamidine Zn and Al Complexes: Synthesis, Characterization, and Use in the Ring-Opening Polymerization of Lactide

2019

International audience; Herein we report the synthesis of new ditopic ligands, which consist of a phenoxy group and N,N,N'trisubstituted amidines linked by a methylene spacer (L1-L4). Their coordination chemistry has been studied/investigated with Zn(II) and Al(III). Alkane elimination route between the phenol-amidine proligands (L1H-L4H) and Et2Zn led to dinuclear complexes [(L1-L4)ZnEt]2 (1a-4a) in which the Zn centers are chelated by phenoxyamidine ligands and bridged through the oxygen atom of the phenoxy groups. Salt metathesis reaction between two equivalents of the sodium amidine phenate L1Na and ZnCl2 led to a bis-chelate chiral spiro-complex (L12Zn) 1a'. Analogous alkane eliminatio…

STRUCTURAL-CHARACTERIZATIONchemistry.chemical_elementCATALYSTSZinc010402 general chemistryLIGANDS SYNTHESIS01 natural sciencesRing-opening polymerizationCoordination complexCatalysisInorganic Chemistrychemistry.chemical_compoundZINCIMINE LIGANDSGroup (periodic table)Polymer chemistry[CHIM.COOR]Chemical Sciences/Coordination chemistryPhysical and Theoretical ChemistryMethyleneCYCLIC ESTERSALUMINUM COMPLEXESchemistry.chemical_classificationEPSILON-CAPROLACTONELactide010405 organic chemistryOrganic ChemistryGROUP-4 METAL-COMPLEXES[CHIM.CATA]Chemical Sciences/CatalysisImine ligands0104 chemical scienceschemistryINITIATORSGROUP-4 METAL-COMPLEXES; ALUMINUM COMPLEXES; EPSILON-CAPROLACTONE; LIGANDS SYNTHESIS; IMINE LIGANDS; STRUCTURAL-CHARACTERIZATION; CYCLIC ESTERS; ZINC; CATALYSTS; INITIATORS
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CCDC 1868748: Experimental Crystal Structure Determination

2019

Related Article: Florian Chotard, Rosita Lapenta, Anaëlle Bolley, Audrey Trommenschlager, Cédric Balan, Jérôme Bayardon, Raluca Malacea-Kabbara, Quentin Bonnin, Ewen Bodio, Hélène Cattey, Philippe Richard, Stefano Milione, Alfonso Grassi, Samuel Dagorne, Pierre Le Gendre|2019|Organometallics|38|4147|doi:10.1021/acs.organomet.9b00501

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parametersbis(2-({[(dimethylamino)(phenyl)methylidene]amino}methyl)phenolato)-zinc(ii)Experimental 3D Coordinates
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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
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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
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CCDC 1868745: Experimental Crystal Structure Determination

2019

Related Article: Florian Chotard, Rosita Lapenta, Anaëlle Bolley, Audrey Trommenschlager, Cédric Balan, Jérôme Bayardon, Raluca Malacea-Kabbara, Quentin Bonnin, Ewen Bodio, Hélène Cattey, Philippe Richard, Stefano Milione, Alfonso Grassi, Samuel Dagorne, Pierre Le Gendre|2019|Organometallics|38|4147|doi:10.1021/acs.organomet.9b00501

Space GroupCrystallography2-({[phenyl(pyrrolidin-1-yl)methylidene]amino}methyl)phenolCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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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
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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
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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
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CCDC 1868749: Experimental Crystal Structure Determination

2019

Related Article: Florian Chotard, Rosita Lapenta, Anaëlle Bolley, Audrey Trommenschlager, Cédric Balan, Jérôme Bayardon, Raluca Malacea-Kabbara, Quentin Bonnin, Ewen Bodio, Hélène Cattey, Philippe Richard, Stefano Milione, Alfonso Grassi, Samuel Dagorne, Pierre Le Gendre|2019|Organometallics|38|4147|doi:10.1021/acs.organomet.9b00501

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parameters(2-({[(dimethylamino)(phenyl)methylidene]amino}methyl)phenolato)-bis(methyl)-aluminium(iii)Experimental 3D Coordinates
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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
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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
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CCDC 1868747: Experimental Crystal Structure Determination

2019

Related Article: Florian Chotard, Rosita Lapenta, Anaëlle Bolley, Audrey Trommenschlager, Cédric Balan, Jérôme Bayardon, Raluca Malacea-Kabbara, Quentin Bonnin, Ewen Bodio, Hélène Cattey, Philippe Richard, Stefano Milione, Alfonso Grassi, Samuel Dagorne, Pierre Le Gendre|2019|Organometallics|38|4147|doi:10.1021/acs.organomet.9b00501

Space GroupCrystallographyCrystal SystemCrystal Structurebis(mu-2-({[phenyl(pyrrolidin-1-yl)methylidene]amino}methyl)phenolato)-bis(ethyl)-di-zinc(ii)Cell ParametersExperimental 3D Coordinates
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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
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CCDC 1937786: Experimental Crystal Structure Determination

2019

Related Article: Florian Chotard, Rosita Lapenta, Anaëlle Bolley, Audrey Trommenschlager, Cédric Balan, Jérôme Bayardon, Raluca Malacea-Kabbara, Quentin Bonnin, Ewen Bodio, Hélène Cattey, Philippe Richard, Stefano Milione, Alfonso Grassi, Samuel Dagorne, Pierre Le Gendre|2019|Organometallics|38|4147|doi:10.1021/acs.organomet.9b00501

Space GroupCrystallographybis(mu-isopropoxo)-bis(N'-[(2-oxyphenyl)methyl]-NN-dimethylbenzenecarboximidamide)-di-zincCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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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
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CCDC 1868750: Experimental Crystal Structure Determination

2019

Related Article: Florian Chotard, Rosita Lapenta, Anaëlle Bolley, Audrey Trommenschlager, Cédric Balan, Jérôme Bayardon, Raluca Malacea-Kabbara, Quentin Bonnin, Ewen Bodio, Hélène Cattey, Philippe Richard, Stefano Milione, Alfonso Grassi, Samuel Dagorne, Pierre Le Gendre|2019|Organometallics|38|4147|doi:10.1021/acs.organomet.9b00501

Space GroupCrystallographyCrystal Systemdimethyl-[2-({[phenyl(pyrrolidin-1-yl)methylidene]amino}methyl)phenolato]-aluminium(iii)Crystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 1868746: Experimental Crystal Structure Determination

2019

Related Article: Florian Chotard, Rosita Lapenta, Anaëlle Bolley, Audrey Trommenschlager, Cédric Balan, Jérôme Bayardon, Raluca Malacea-Kabbara, Quentin Bonnin, Ewen Bodio, Hélène Cattey, Philippe Richard, Stefano Milione, Alfonso Grassi, Samuel Dagorne, Pierre Le Gendre|2019|Organometallics|38|4147|doi:10.1021/acs.organomet.9b00501

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parametersbis(mu-2-({[(dimethylamino)(phenyl)methylidene]amino}methyl)phenolato)-bis(ethyl)-di-zinc(ii)Experimental 3D Coordinates
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CCDC 1868743: Experimental Crystal Structure Determination

2019

Related Article: Florian Chotard, Rosita Lapenta, Anaëlle Bolley, Audrey Trommenschlager, Cédric Balan, Jérôme Bayardon, Raluca Malacea-Kabbara, Quentin Bonnin, Ewen Bodio, Hélène Cattey, Philippe Richard, Stefano Milione, Alfonso Grassi, Samuel Dagorne, Pierre Le Gendre|2019|Organometallics|38|4147|doi:10.1021/acs.organomet.9b00501

Space GroupCrystallographyCrystal SystemCrystal StructureN-[(2-hydroxyphenyl)methyl]-N'N'-dimethylbenzenecarboximidamidium bromideCell ParametersExperimental 3D Coordinates
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