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Nickel metal-organic framework implanted on graphene and incubated to be ultrasmall nickel phosphide nanocrystals acts as a highly efficient water splitting electrocatalyst
The development of low-cost, efficient, and stable electrocatalysts with bifunctional catalytic activity for overall water splitting is desirable but remains a great challenge. Here, a template-confinement strategy is presented with nickel metal–organic framework (MOF-74-Ni) implanted on graphene oxide and incubated by low temperature phosphorization to become ultrasmall nickel phosphide nanocr...
http://www.polymer.cnt//ss/zhaoxuebo/publicationsshow_12979.html |
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The Missing-Nodes directed Synthesis of Hierarchical Pores on a Zirconium Metal-Organic Framework with Tunable Porosity and Enhanced Surface Acidity via Microdroplet flow Reaction
A hierarchical porous zirconium metal–organic framework (UiO-66) was prepared continuously through a microdroplet flow reaction strategy for the first time. The existence of metal-node defects arising from incomplete coordination in UiO-66 was found to be the main reason for the formation of mesopores. The dimensions of mesopores could be facilely tuned by adjusting the residence time, and the ...
http://www.polymer.cnt//ss/zhaoxuebo/publicationsshow_12426.html |
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Binuclear Rare-Earth-Metal Alkyl Complexes Ligated by Phenylene-Bridged β-Diketiminate Ligands: Synthesis, Characterization, and Catalysis toward Isoprene Polymerization
Deprotonation
of m-phenylene-bridged bis(β-diketiminate) ligands (PBDIiPr-H2 =
[2,6-iPr2C6H3NHC(Me)C(H)C(Me)N]2-(m-phenylene);
PBDIEt-H2 = [2,6-Et2C6H3NHC(Me)C(H)C(Me)N]2-(m-phenylene);
PBDIMe-H2 = [2,6-Me2C6H3NHC(Me)C(H)C(Me)N]2-(m-phenylene))
by rare-earth-metal tris(alkyls) Ln(CH2SiMe3)3(THF)2 (Ln
= Y, Lu, Sc) gave a series of rare-earth-metal bis(alkyl) complexes: P...
http://www.polymer.cnt//ss/dongmeicui/publicationsshow_12000.html |
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Rare-Earth-Metal Complexes Bearing Phosphazene Ancillary Ligands: Structures and Catalysis toward Highly Trans-1,4-Selective (Co)Polymerizations of Conjugated Dienes
The
bis-arylated phosphazene compounds [HN(PPh2NAr)2] (Ar =
phenyl (HL1), 2,6-dimethylphenyl (HL2),
2,6-diisopropylphenyl (HL3)) and the imidodiphosphinate compound
HN(PPh2O)2 (HL4) have been prepared via
the Staudinger reaction. Treatment of the neutral compounds HL1, HL2,
and HL3 with Ln(CH2SiMe3)3(THF)2 (Ln
= Sc, Y, Lu) generated the solvent-free bis(alkyl) complexes L1Ln(CH2Si...
http://www.polymer.cnt//ss/dongmeicui/publicationsshow_11997.html |
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Rare-Earth-Metal Mixed Hydride/Aryloxide Complexes Bearing Mono(cyclopentadienyl) Ligands. Synthesis, CO2 Fixation, and Catalysis on Copolymerization of CO2 with Cyclohexene Oxide
Hydrogenolysis
of mono(cyclopentadienyl)-ligated rare-earth-metal bis(alkyl) complexes
Cp′Ln(CH2SiMe3)2(THF) (Ln = Y (1a), Dy
(1b), Lu (1c); Cp′ = C5Me4SiMe3)
with PhSiH3 afforded the mixed hydride/alkyl complexes
[Cp′Ln(μ-H)(CH2SiMe3)(THF)]2 (Ln = Y (2a),
Dy (2b), Lu (2c)). The overall structure of complexes 2a?c is
a C2-symmetric dimer containing a planar symmetric...
http://www.polymer.cnt//ss/dongmeicui/publicationsshow_11981.html |
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Rare-earth metal complexes stabilized by amino-phosphine ligand. Reaction with mesityl azide and catalysis of the cycloaddition of organic azides and aromatic alkynes
Stoichiometric reactions between mesityl azide (MesN3, Mes = 2,4,6-C6H2Me3) and amino-phosphine ligated rare-earth metal alkyl, LLn(CH2SiMe3)2(THF) (L = (2,6-C6H3Me2)NCH2C6H4P(C6H5)2; Ln = Lu (1a), Sc (1b)), amide, LLu(NH(2,6-C6H3iPr2))2(THF) (2) and acetylide at room temperature gave the amino-phosphazide ligated rare-earth metal bis(triazenyl) complexes, [L(MesN3)]Ln[(...
http://www.polymer.cnt//ss/dongmeicui/publicationsshow_11977.html |
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Rare-Earth-Metal–Hydrocarbyl Complexes Bearing Linked Cyclopentadienyl or Fluorenyl Ligands: Synthesis, Catalyzed Styrene Polymerization, and Structure–Reactivity Relationship
A series of rare-earth-metal–hydrocarbyl complexes bearing N-type functionalized cyclopentadienyl (Cp) and fluorenyl (Flu) ligands were facilely synthesized.Treatment of [Y(CH2SiMe3)3(thf)2] with equimolar amount of the electron-donating aminophenyl-Cp ligand C5Me4H-C6H4-o-NMe2 afforded the corresponding binuclear monoalkyl complex [({C5Me4-C6H4-o-NMe(μ-CH2)}Y{CH2SiMe3...
http://www.polymer.cnt//ss/dongmeicui/publicationsshow_11964.html |
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Living catalyzed-chain-growth polymerization and block copolymerization of isoprene by rare-earth metal allyl precursors bearing a constrained-geometry-conformation ligandw
Aminophenyl functionalized cyclopentadienyl ligated rare-earth metal allyl mediated cationic systems display high cis-1,4 selectivity for the polymerization of isoprene, and living reversible and rapid chain transfer to aluminium additives.
http://www.polymer.cnt//ss/dongmeicui/publicationsshow_11958.html |
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Thiophene-NPN Ligand Supported Rare-Earth Metal Bis(alkyl) Complexes. Synthesis and Catalysis toward Highly trans-1,4 Selective Polymerization of Butadiene
A series of new rare-earth metal bis(alkyl) complexes [L1?3Ln(CH2SiMe3)2(THF)n] (L1 = MeC4H2SCH2NC6H4(Ph)2P═NC6H2Me3-2,4,6: Ln = Sc, n = 1 (1a); Ln = Lu, n = 1 (1b); L2 = MeC4H2SCH2NC6H4(Ph)2P═NC6H3Et2-2,6: Ln = Sc, n = 1 (2a); Ln = Lu, n = 1 (2b); Ln = Y, n = 1 (2c); L3 = MeC4H2SCH2NC6H4(Ph)2P═NC6H3iPr2-2,6: Ln = Sc, n&nbs...
http://www.polymer.cnt//ss/dongmeicui/publicationsshow_11933.html |
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New rare earth metal bis(alkyl)s bearing an iminophosphonamido ligand. Synthesis and catalysis toward highly 3,4-selective polymerization of isoprene
New rare earth metal bis(alkyl) complexes [(NPNPh)Ln(CH2SiMe3)2(THF)] (NPNPh: N(Ph)PPh2═NC6H2Me3-2,4,6; Ln = Sc (3a), Ln = Y (3b), Ln = Lu (3c)) and [(NPNPy)Sc(CH2SiMe3)2(THF)] (NPNPy = N(Py)PPh2═NC6H2Me3-2,4,6) (3d)) have been prepared via protonolysis reaction between rare earth metal tris(alkyl)s and the corresponding iminophosphonamines. Complexes 3a?d are analogous monomers...
http://www.polymer.cnt//ss/dongmeicui/publicationsshow_11928.html |
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