Dialkyl Rare Earth Complexes Supported by Potentially Tridentate Amidinate Ligands: Synthesis, Structures, and Catalytic Activity in Isoprene Polymerization

2012 ◽  
Vol 2012 (13) ◽  
pp. 2289-2297 ◽  
Author(s):  
Vassily Yu. Rad'kov ◽  
Grigorii G. Skvortsov ◽  
Dmitry M. Lyubov ◽  
Anton V. Cherkasov ◽  
Georgy K. Fukin ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Rare Earth ◽  
Rare Earth Complexes ◽  
Isoprene Polymerization

Bis(alkyl) rare-earth complexes supported by a new tridentate amidinate ligand with a pendant diphenylphosphine oxide group. Synthesis, structures and catalytic activity in isoprene polymerization

2015 ◽  
Vol 44 (37) ◽  
pp. 16465-16474 ◽  
Author(s):  
Aleksei O. Tolpygin ◽  
Tatyana A. Glukhova ◽  
Anton V. Cherkasov ◽  
Georgy K. Fukin ◽  
Diana V. Aleksanyan ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Rare Earth ◽  
High Activity ◽  
Rare Earth Complexes ◽  
Diphenylphosphine Oxide ◽  
Oxide Group ◽  
Very High ◽  
Isoprene Polymerization

The introduction of a pendant Ph2P(O) group into an amidinate ligand resulted in high 1,4-cis selectivity (96.6%) while maintaining very high activity.

Bis(alkyl) rare-earth complexes coordinated by bulky tridentate amidinate ligands bearing pendant Ph2PO and Ph2PNR groups. Synthesis, structures and catalytic activity in stereospecific isoprene polymerization

2016 ◽  
Vol 45 (46) ◽  
pp. 18572-18584 ◽  
Author(s):  
Natalia Yu. Rad'kova ◽  
Aleksei O. Tolpygin ◽  
Vasily Yu. Rad'kov ◽  
Nadia M. Khamaletdinova ◽  
Anton V. Cherkasov ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Rare Earth ◽  
Rare Earth Complexes ◽  
Isoprene Polymerization

Replacement of Ph2PO group by Ph2PNPh leads to a switch of stereoselectivity from cis-1,4 to trans-1,4.

Trinuclear alkyl hydrido rare-earth complexes supported by amidopyridinato ligands: synthesis, structures, C–Si bond activation and catalytic activity in ethylene polymerization

2014 ◽  
Vol 43 (38) ◽  
pp. 14450-14460 ◽  
Author(s):  
Dmitry M. Lyubov ◽  
Anton V. Cherkasov ◽  
Georgy K. Fukin ◽  
Sergey Yu. Ketkov ◽  
Andrey S. Shavyrin ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Rare Earth ◽  
Ethylene Polymerization ◽  
Bond Activation ◽  
Rare Earth Complexes

[(Ap9MeLu)3(μ2-H)3(μ3-H)2(CH2SiMe3)(thf)2] was synthesized. For Y and Yb C–Si bond activation occurs affording [(Ap9MeLu)3(μ2-H)3(μ3-H)2(CH2SiMe3)(thf)2] and [(Ap9MeLn)3(μ2-H)3(μ3-H)2(CH2SiH2Ph)(thf)2].

Amido rare-earth complexes supported by an ansa bis(amidinate) ligand with a rigid 1,8-naphthalene linker: synthesis, structures and catalytic activity in rac-lactide polymerization and hydrophosphonylation of carbonyl compounds

2015 ◽  
Vol 39 (2) ◽  
pp. 1083-1093 ◽  
Author(s):  
Marina V. Yakovenko ◽  
Natalia Yu. Udilova ◽  
Tatyana A. Glukhova ◽  
Anton V. Cherkasov ◽  
Georgy K. Fukin ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Rare Earth ◽  
Carbonyl Compounds ◽  
Rare Earth Complexes ◽  
Lactide Polymerization

We report the synthesis of rare-earth amides and their catalytic activity in ROP of lactide.

Bis(amido) rare-earth complexes coordinated by tridentate amidinate ligand: synthesis, structure and catalytic activity in the polymerization of isoprene and rac-lactide

RSC Advances ◽  
2016 ◽  
Vol 6 (22) ◽  
pp. 17913-17920 ◽  
Author(s):  
Aleksei O. Tolpygin ◽  
Olesya A. Linnikova ◽  
Tatyana A. Glukhova ◽  
Anton V. Cherkasov ◽  
Georgy K. Fukin ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Rare Earth ◽  
Rare Earth Complexes ◽  
Ligand Synthesis

Rare-earth bis(amides) {2-[Ph2Р(O)]C6H4NC(tBu)N(2,6-Me2C6H3)}Ln(N(SiMe3)2)2 (Ln = Y, Nd, La) coordinated by tridentate amidinate ligand were synthesized, structurally characterized and evaluated as catalysts for isoprene and rac-lactide polymerizations.

Unsymmetrical diarylamido-based rare-earth alkyl complexes: their synthesis and catalytic performance in isoprene polymerization

2021 ◽  
Author(s):  
Wenhui Ren ◽  
Hui Liu ◽  
Fen You ◽  
Pengjuan Mao ◽  
Yat-Ming So ◽  
...  
Keyword(s):  
Rare Earth ◽  
Catalytic Performance ◽  
Rare Earth Complexes ◽  
Alkyl Complexes ◽  
Isoprene Polymerization

We have reported the synthesis of a family of diarylamido-based rare-earth complexes and their stereoselective polymerization of isoprene.

Rare-earth alkyl complexes supported by formamidinate ligands: synthesis, structure, and catalytic activity for isoprene polymerization

2014 ◽  
Vol 43 (18) ◽  
pp. 6842-6847 ◽  
Author(s):  
Liping Guo ◽  
Xiancui Zhu ◽  
Shuangliu Zhou ◽  
Xiaolong Mu ◽  
Yun Wei ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Rare Earth ◽  
Metal Complexes ◽  
Rare Earth Metal ◽  
Earth Metal ◽  
Alkyl Complexes ◽  
Highly Active ◽  
Rare Earth Metal Complexes ◽  
Isoprene Polymerization

Monoalkyl rare-earth metal complexes could be highly active catalysts for 1,4-regioselective polymerization of isoprene in the presence of cocatalysts.

Rare-earth complexes supported by an ansa-bis(amidinate) ligand with a rigid o-phenylene linker: synthesis, structure, and catalytic activity for polymerization of cyclic esters

2019 ◽  
Vol 48 (32) ◽  
pp. 12193-12198 ◽  
Author(s):  
Fenhua Wang ◽  
Xu Zhao ◽  
Xianfu Meng ◽  
Shaowu Wang
Keyword(s):  
Catalytic Activity ◽  
Rare Earth ◽  
Coordination Chemistry ◽  
Rare Earth Complexes ◽  
Cyclic Esters

Two types of rare-earth complexes supported by a linked-bis(amidinate) ligand were constructed; their coordination chemistry and catalytic activity were studied.

Synthesis and characterization of dinuclear rare-earth complexes supported by amine-bridged bis(phenolate) ligands and their catalytic activity for the ring-opening polymerization of l-lactide

2016 ◽  
Vol 45 (26) ◽  
pp. 10807-10820 ◽  
Author(s):  
Yu-Lai Duan ◽  
Jia-Xuan He ◽  
Wei Wang ◽  
Jing-Jing Zhou ◽  
Yong Huang ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Rare Earth ◽  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Rare Earth Complexes ◽  
Synthesis And Characterization ◽  
Phenolate Ligands

Neutral rare-earth complexes [M2(L)2(THF)4] have been synthesized. Their activities toward the ring-opening polymerization of l-lactides will be presented.

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