Resting/dormant benzyl- and allyl-type Ti(IV) complexes formed under alpha-olefin polymerization conditions have been detected and characterized by NMR. Experimental and computational evidence supports a formation mechanism via reversible Ti-C bond homolysis rather than "classical" sigma-bond metathesis.
Toluene and α-Olefins as Radical Scavengers: Direct NMR Evidence for Homolytic Chain Transfer Mechanism Leading to Benzyl and "dormant" Titanium Allyl Complexes / Zaccaria, Francesco; Zuccaccia, Cristiano; Cipullo, Roberta; Budzelaar, Peter H. M.; Macchioni, Alceo; Busico, Vincenzo; Ehm, Christian; Budzelaar, Petrus Henricus Maria. - In: ORGANOMETALLICS. - ISSN 0276-7333. - 37:22(2018), pp. 4189-4194. [10.1021/acs.organomet.8b00755]
Toluene and α-Olefins as Radical Scavengers: Direct NMR Evidence for Homolytic Chain Transfer Mechanism Leading to Benzyl and "dormant" Titanium Allyl Complexes
Zaccaria, Francesco;ZUCCACCIA, CRISTIANO;Cipullo, Roberta;Busico, Vincenzo;Ehm, Christian;BUDZELAAR, Petrus Henricus Maria
2018
Abstract
Resting/dormant benzyl- and allyl-type Ti(IV) complexes formed under alpha-olefin polymerization conditions have been detected and characterized by NMR. Experimental and computational evidence supports a formation mechanism via reversible Ti-C bond homolysis rather than "classical" sigma-bond metathesis.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
