Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Transition-metal coordination mechanisms anionic ligands

Precatalyst 4(Sm) was utilized as a standard system [60]. The mechanism follows a coordination anionic polymerization via an eight-membered transition state (Scheme 3, see p. 985). Formation of a metal enolate turned out to be essential for the initiation of the MMA polymerization and was confirmed by the initiation activity of the enolate complex [(C5H4SiMe3)2Y(OCH=CH2)]2- The rate of polymerization is directed by steric factors depending on the metal (Sm > Y > Yb > Lu) and the auxiliary ligand (Cp > Cp ). Ethyl, isopropyl and f-butyl methacrylates are also stereospecifically polymerized, but the rate of poly-... [Pg.983]

See other pages where Transition-metal coordination mechanisms anionic ligands is mentioned: [Pg.43]    [Pg.70]    [Pg.135]    [Pg.70]    [Pg.228]    [Pg.568]    [Pg.323]    [Pg.138]    [Pg.13]    [Pg.192]    [Pg.166]    [Pg.2023]    [Pg.126]    [Pg.795]    [Pg.35]    [Pg.381]    [Pg.38]    [Pg.425]    [Pg.49]    [Pg.165]    [Pg.127]    [Pg.128]    [Pg.364]    [Pg.63]    [Pg.526]    [Pg.740]    [Pg.14]    [Pg.190]    [Pg.517]    [Pg.318]    [Pg.252]    [Pg.252]    [Pg.3706]    [Pg.71]    [Pg.453]    [Pg.85]    [Pg.82]    [Pg.58]    [Pg.33]    [Pg.19]   
See also in sourсe #XX -- [ Pg.13 ]



SEARCH



Anion coordination

Anion ligands

Anionic mechanism

Coordination mechanism

Ligand coordination

Ligand mechanisms

Ligand-metal coordination

Ligands anionic

Mechanical metals

Mechanisms, coordinated anionic

Metal anionic

Metal anions

Metalation mechanism

Transition coordinate

Transition ligand

Transition metal anions

Transition metal mechanism

Transition metals ligands

Transition-metal coordination

Transition-metal coordination mechanisms

Transitional coordinates

© 2024 chempedia.info