FI Catalysts: A Molecular Zeolite for Olefin Polymerization

Autor:	Haruyuki Makio, Hidetsugu Tanaka, Terunori Fujita, Takashi Ochiai
Rok vydání:	2010
Předmět:	chemistry.chemical_compound Ethylene Polymerization Transition metal Chemistry Migratory insertion General Chemistry Zeolite Photochemistry Selectivity Transition state Catalysis
Zdroj:	Advanced Synthesis & Catalysis. 352:1635-1640
ISSN:	1615-4169 1615-4150
DOI:	10.1002/adsc.201000279
Popis:	A bis(phenoxyimine) group 4 transition metal catalyst (now known as FI catalysts) can discern ethylene from a mixture of ethylene and propylene at more than 99% selectivity. Denisty function theory (DFT) calculations revealed a spatially confined reaction site in the transition states of the migratory insertion which is just the right size for an ethylene molecule but too small for a propylene one. The substituents adjacent to the phenoxy-oxygens are of crucial importance in developing the size/shape-selectivity.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7918eabef24276ae7823bd8ad80c0bbe https://doi.org/10.1002/adsc.201000279 Zobrazit plný text záznamu Plný text