Synthesis of Mono- and Dinuclear Aluminum Complexes Bearing Aromatic Amino-Phenolato Ligands: A Comparative Study in the Ring-Opening Polymerization of Cyclohexene Oxide DOI
Yongjie Chen,

Baoxia Li,

Yaorong Wang

и другие.

Inorganic Chemistry, Год журнала: 2023, Номер 62(51), С. 21247 - 21256

Опубликована: Дек. 6, 2023

Dinuclear aluminum methyl complexes bearing aromatic diamine-bridged tetra(phenolato) ligands and the mononuclear complex with phenylamine-bridged bis(phenolato) ligand have been synthesized characterized. Structure determination revealed that Al-Al distances in these dinuclear are tunable by choice of suitable backbone ligands. The catalytic behaviors mono- for cyclohexene oxide (CHO) polymerization were investigated. activities Al observed to increase decrease distances, appeared better activity than complex, even if distance is as long 9.401 Å. 2, shortest (7.236 Å), showed highest toward CHO TOFs up 6460 h-1 neat at 30 °C. Furthermore, comparative kinetic studies first-order concentration, reaction orders initiator concentration different complexes. mechanism study both phenolate groups involved initiation process.

Язык: Английский

Synthesis of Mono- and Dinuclear Aluminum Complexes Bearing Aromatic Amino-Phenolato Ligands: A Comparative Study in the Ring-Opening Polymerization of Cyclohexene Oxide DOI
Yongjie Chen,

Baoxia Li,

Yaorong Wang

и другие.

Inorganic Chemistry, Год журнала: 2023, Номер 62(51), С. 21247 - 21256

Опубликована: Дек. 6, 2023

Dinuclear aluminum methyl complexes bearing aromatic diamine-bridged tetra(phenolato) ligands and the mononuclear complex with phenylamine-bridged bis(phenolato) ligand have been synthesized characterized. Structure determination revealed that Al-Al distances in these dinuclear are tunable by choice of suitable backbone ligands. The catalytic behaviors mono- for cyclohexene oxide (CHO) polymerization were investigated. activities Al observed to increase decrease distances, appeared better activity than complex, even if distance is as long 9.401 Å. 2, shortest (7.236 Å), showed highest toward CHO TOFs up 6460 h-1 neat at 30 °C. Furthermore, comparative kinetic studies first-order concentration, reaction orders initiator concentration different complexes. mechanism study both phenolate groups involved initiation process.

Язык: Английский

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