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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Jones, Matthew D.
University of Bath
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (18/18 displayed)
- 2019Copolymerization of Cyclic Phosphonate and Lactide: Synthetic Strategies toward Control of Amphiphilic Microstructurecitations
- 2018Bipyrrolidine salan alkoxide complexes of lanthanides: synthesis, characterisation, activity in the polymerisation of lactide and mechanistic investigation by DOSY NMRcitations
- 2017Synthesis of PLGA using a C3-symmetric Zr (IV) amine tris(phenolate) alkoxide initiator and the effects of gamma radiation on its propertiescitations
- 2017Zirconium amine tris(phenolate):A more effective initiator for biomedical lactidecitations
- 2017Zirconium amine tris(phenolate)citations
- 2017Zn<sup>II</sup> Chlorido Complexes with Aliphatic, Chiral Bisguanidine Ligands as Catalysts in the Ring‐Opening Polymerisation of <i>rac</i>‐Lactide Using FT‐IR Spectroscopy in Bulkcitations
- 2016Aminopiperidine based complexes for lactide polymerisationcitations
- 2013Synergistic empirical and theoretical study on the stereoselective mechanism for the aluminum salalen complex mediated polymerization of rac-Lactidecitations
- 2011Homopiperazine and piperazine complexes of Zr(IV) and Hf(IV) and their application to the ring-opening polymerisation of lactidecitations
- 2011Salalen aluminium complexes and their exploitation for the ring opening polymerisation of rac-lactidecitations
- 2009Synthesis and structure of aluminium amine-phenolate complexescitations
- 2009Novel Ti(IV) and Zr(IV) complexes and their application in the ring-opening polymerisation of cyclic esterscitations
- 2006Synthesis and X-ray structures of new titanium(IV) aryloxides and their exploitation for the ring opening polymerization of epsilon-caprolactonecitations
- 2003trans-bis[(S)-(-)-2-aminomethyl-1-ethylpyrrolidine-kappa N-2]palladium(II) dichloride methanol trisolvate
- 2003(η3-Allyl)[(S)-(+)-(2-pyrrolidinylmethyl)-pyrrolidine] palladium(II) trifluoromethane-sulfonatecitations
- 2003(eta(3)-allyl)[(S)-(+)-(2-pyrrolidinylmethyl)pyrrolidine]palladium(II) trifluoromethanesulfonate
- 2003[1,1 '-bis(diphenylphosphino)ferrocene-kappa P-2,P '](1,5-cyclooctadiene)rhodium(I) trifluoromethanesulfonate dichloromethane disolvatecitations
- 2003(eta(3)-Allyl)[(R)-(+)-2,2 '-bis(diphenylphosphino)-1,1 '-binaphthyllpalladium(II) trifluoromethanesulfonate dichloromethane solvatecitations
Places of action
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article
Synthesis and structure of aluminium amine-phenolate complexes
Abstract
<p>Reaction of Al(O<sup>i</sup> Pr)<sub>3</sub>with the tris-phenol amine ligand L<sup>1</sup> H<sub>3</sub>in toluene at ambient temperature results in the formation of the iso-propanol adduct [HO<sup>i</sup> Pr·Al(L<sup>1</sup>)]. Single crystal X-ray diffraction analysis reveals the structure to be a hydrogen bonded dimer. Reaction of Al(O<sup>i</sup> Pr)<sub>3</sub>(or AlMe<sub>3</sub>) with L<sup>1</sup> H<sub>3</sub>in THF affords the related, and structurally characterised THF adduct, [THF·Al(L<sup>1</sup>)]. Similar reaction of Al(O<sup>i</sup> Pr)<sub>3</sub>(or AlMe<sub>3</sub>) with the bis-phenol amine and tetra-phenol diamine ligands, L<sup>2</sup> H<sub>3</sub>and L<sup>3</sup> H<sub>4</sub>, results in the formation and isolation of the complexes [Al(L<sup>2</sup>)]<sub>2</sub>and [Al(L<sup>3</sup>)H] respectively, both of which have been structurally characterised via single crystal X-ray diffraction studies. Reaction of the alkoxide bridged dimer [Al(L<sup>2</sup>)]<sub>2</sub>with the strong Lewis base HMPA results in the formation of the monomeric HMPA adduct [HMPA·Al(L<sup>2</sup>)] which was also structurally characterised. The adduct [HO<sup>i</sup> Pr·Al(L<sup>1</sup>)] and the dimer [Al(L<sup>2</sup>)]<sub>2</sub>were tested for their activity in the ring-opening polymerisation (ROP) of rac-lactide under solvent-free conditions (130 °C). Under the conditions employed [Al(L<sup>2</sup>)]<sub>2</sub>failed to produce polymer after 48 h, in stark contrast to [HO<sup>i</sup> Pr·Al(L<sup>1</sup>)] which after 24 h and 48 h produced narrow molecular weight polymer (24 h: yield = 25%, M<sub>n</sub>= 14500 and PDI = 1.05; 48 h: yield = 65%, M<sub>n</sub>= 47700 and PDI = 1.06).</p>