144772-00-9Relevant academic research and scientific papers
Weakly coordinating cations as alternatives to weakly coordinating anions
Price, Craig J.,Chen, Hsuan-Ying,Launer, L. Marie,Miller, Stephen A.
, p. 956 - 959 (2009/05/15)
Big is beautiful: Activation of fluorenyl-based zirconocenes with methylaluminoxane (MAO) effects a red shift in the visible λ max proportional to the size of the metallocene (see potential energy surfaces in picture). Polymerization activities correlate directly with color (λmax), suggesting that bulky zirconocenium catalysts are weakly coordinating cations which, like weakly coordinating anions, diminish cation-anion interactions. (Figure Presented).
Metallocene-catalyzed polymerization of methacrylates to highly syndiotactic polymers at high temperatures
Ning, Yalan,Chen, Eugene Y.-X.
, p. 2463 - 2465 (2008/09/18)
Cs-Ligated ansa-zirconocene bis- and mono(ester enolate) complexes incorporating the diphenylmethylidene-(cyclopentadienyl)(9-fluorenyl) ligand, upon activation with appropriate activators, are highly active catalysts for the syndiospecific pol
