Literature DB >> 15281798

One ligand fits all: cationic mono(amidinate) alkyl catalysts over the full size range of the group 3 and lanthanide metals.

Sergio Bambirra1, Marco W Bouwkamp, Auke Meetsma, Bart Hessen.   

Abstract

Using a sterically demanding amidinate ancillary ligand and an in situ alkylation procedure, neutral mono(amidinate) dialkyl and cationic mono(amidinate) monoalkyl complexes were prepared for metals spanning the full size range of the group 3 and lanthanide metals. The activity of the cationic monoalkyls in catalytic ethene polymerization was found to vary by over 2 orders of magnitude depending on the metal ionic radius, the intermediate metal sizes being found to be the most effective.

Entities:  

Year:  2004        PMID： 15281798     DOI： 10.1021/ja0475297

Source DB:  PubMed          Journal:  J Am Chem Soc        ISSN： 0002-7863            Impact factor:   15.419


  3 in total

1.  Novel polymerization catalysts and hydride clusters from rare-earth metal dialkyls.

Authors:  Masayoshi Nishiura; Zhaomin Hou
Journal:  Nat Chem       Date:  2010-03-24       Impact factor: 24.427

2.  Unprecedentedly High Activity and/or High Regio-/Stereoselectivity of Fluorenyl-Based CGC Allyl-Type η3:η1-tert-Butyl(dimethylfluorenylsilyl)amido Ligated Rare Earth Metal Monoalkyl Complexes in Olefin Polymerization.

Authors:  Ge Guo; Xiaolu Wu; Xiangqian Yan; Li Yan; Xiaofang Li; Shaowen Zhang; Nannan Qiu
Journal:  Polymers (Basel)       Date:  2019-05-08       Impact factor: 4.329

3.  C-H-Bond Activation and Isoprene Polymerization Studies Applying Pentamethylcyclopentadienyl-Supported Rare-Earth-Metal Bis(Tetramethylaluminate) and Dimethyl Complexes.

Authors:  Christoph O Hollfelder; Melanie Meermann-Zimmermann; Georgios Spiridopoulos; Daniel Werner; Karl W Törnroos; Cäcilia Maichle-Mössmer; Reiner Anwander
Journal:  Molecules       Date:  2019-10-15       Impact factor: 4.411
  3 in total

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