Mono(boratabenzene) rare-earth metal dialkyl complexes: synthesis, structure and catalytic behaviors for styrene polymerization

2015 ◽  
Vol 44 (12) ◽  
pp. 5771-5776 ◽  
Author(s):  
Xiufang Wang ◽  
Xuebing Leng ◽  
Yaofeng Chen
Keyword(s):  
Rare Earth ◽  
Structural Characterization ◽  
Rare Earth Metal ◽  
Earth Metal ◽  
Styrene Polymerization ◽  
Catalytic Activities

Synthesis and structural characterization of mono(boratabenzene) rare-earth metal dialkyl complexes were achieved by using multi-substituted boratabenzene ligands, and the synthesized scandium complexes show high catalytic activities for syndiotactic styrene polymerization upon activation with cocatalysts.

Synthesis and structural characterization of amido heteroscorpionate rare-earth metal complexes and hydroamination of aminoalkenes

2015 ◽  
Vol 39 (10) ◽  
pp. 7672-7681 ◽  
Author(s):  
Antonio Otero ◽  
Agustín Lara-Sánchez ◽  
José A. Castro-Osma ◽  
Isabel Márquez-Segovia ◽  
Carlos Alonso-Moreno ◽  
...  
Keyword(s):  
Rare Earth ◽  
Metal Complexes ◽  
Structural Characterization ◽  
Rare Earth Metal ◽  
Earth Metal ◽  
Rare Earth Complexes ◽  
Rare Earth Metal Complexes

New amide heteroscorpionate rare-earth complexes were developed and used as efficient catalysts for the intramolecular hydroamination of aminoalkenes.

scholarly journals Synthesis and crystallographic characterization of diphenylamide rare-earth metal complexes Ln(NPh2)3(THF)2 and [(Ph2N)2 Ln(μ-NPh2)]2

2020 ◽  
Vol 76 (9) ◽  
pp. 1447-1453
Author(s):  
Chad T. Palumbo ◽  
Christopher M. Kotyk ◽  
Joseph W. Ziller ◽  
William J. Evans
Keyword(s):  
Rare Earth ◽  
Coordination Chemistry ◽  
Structural Characterization ◽  
Rare Earth Metal ◽  
Hydrolysis Product ◽  
Earth Metal ◽  
X Ray Diffraction ◽  
X Ray ◽  
Rare Earth Metal Complexes

Studies of the coordination chemistry between the diphenylamide ligand, NPh2, and the smaller rare-earth Ln III ions, Ln = Y, Dy, and Er, led to the structural characterization by single-crystal X-ray diffraction crystallography of both solvated and unsolvated complexes, namely, tris(diphenylamido-κN)bis(tetrahydrofuran-κO)yttrium(III), Y(NPh2)3(THF)2 or [Y(C12H10N)3(C4H8O)2], 1-Y, and the erbium(III) (Er), 1-Er, analogue, and bis[μ-1κN:2(η6)-diphenylamido]bis[bis(diphenylamido-κN)yttrium(III)], [(Ph2N)2Y(μ-NPh2)]2 or [Y2(C12H10N)6], 2-Y, and the dysprosium(III) (Dy), 2-Dy, analogue. The THF ligands of 1-Er are modeled with disorder across two positions with occupancies of 0.627 (12):0.323 (12) and 0.633 (7):0.367 (7). Also structurally characterized was the tetrametallic ErIII bridging oxide hydrolysis product, bis(μ-diphenylamido-κ2 N:N)bis[μ-1κN:2(η6)-diphenylamido]tetrakis(diphenylamido-κN)di-μ3-oxido-tetraerbium(III) benzene disolvate, {[(Ph2N)Er(μ-NPh2)]4(μ-O)2}·(C6H6)2 or [Er4(C12H10N)8O2]·2C6H6, 3-Er. The 3-Er structure was refined as a three-component twin with occupancies 0.7375:0.2010:0.0615.

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