The catalytic performance of (ZrO)n (n = 1–4, 12) clusters for Suzuki–Miyaura cross-coupling: a DFT study DOI
Zhichao Zhang,

Wen‐Lu Wang,

Hao Zhong

et al.

Dalton Transactions, Journal Year: 2024, Volume and Issue: 53(45), P. 18258 - 18267

Published: Jan. 1, 2024

Superatoms are special clusters with similar physicochemical properties to individual atoms in the periodic table, which open up new avenues for exploring inexpensive catalysts. Given that ZrO superatom possesses same number of valence electrons as a Pd atom, mechanisms Suzuki-Miyaura reaction catalyzed by (ZrO)

Language: Английский

A Coordination Polymer with a Silylene-Supported Pd6 Core as an Efficient Heterogeneous Hydrogenation Catalyst DOI Creative Commons

Taiga Mitomo,

Yoshimasa Wada,

T Suda

et al.

Chemical Science, Journal Year: 2025, Volume and Issue: 16(10), P. 4450 - 4455

Published: Jan. 1, 2025

A hexanuclear palladium cluster supported by two silylene units was readily linked molecules of a linear ditopic isocyanide to afford coordination polymer that retained the core Pd6(SiPh2)2Cl2 framework. The obtained exhibited good performance as heterogeneous catalyst in hydrogenation various alkenes common organic solvents and protic such H2O. Furthermore, showed sufficient stability during order for it be recycled reused.

Language: Английский

Citations

1
Recent Advances in Palladium-Catalyzed Suzuki-Miyaura Cross-Coupling Reactions: Exploration of Catalytic Systems, Reaction Parameters, and Ligand Influences: A Review DOI
Dana A. Kader,

Mohammed Koksh Sidiq,

Salam Ghafour Taher

et al.

Journal of Organometallic Chemistry, Journal Year: 2025, Volume and Issue: unknown, P. 123569 - 123569

Published: Feb. 1, 2025

Language: Английский

Citations

1
Regioselective Suzuki–Miyarua Cross-Coupling for Substituted 2,4-Dibromopyridines Catalyzed by C3-Symmetric Tripalladium Clusters DOI

Zhixin He,

Meng Chen,

Yingrui Song

et al.

The Journal of Organic Chemistry, Journal Year: 2025, Volume and Issue: 90(5), P. 1895 - 1904

Published: Jan. 24, 2025

Multipalladium clusters possess peculiar structures and synergistic effects for reactivity selectivity. Herein, C3-symmetric tripalladium (1, 0.5 mol %) afford C2-regioselective SMCC of 2,4-dibromopyridine with phenylboronic acids or pinacol esters (C2:C4 up to 98:1), in contrast Pd(OAc)2 ligand-free conditions. In addition, similar C2-selectivity was achieved Sonogashira, Negishi, Kumada coupling reactions. This method highlights their powerful catalytic ability, exclusive C2-selectivity, broad substrate scope, efficient amplification, multiple ligand-exchange feasibility demonstrates that the conventional sites could be successfully regulated even reversed by catalysts.

Language: Английский

Citations

0
Flash Communication: Pd2Zn2 Clusters from the Reduction of Palladium(II) Dichloride Precursors with Metallic Zinc DOI Creative Commons

Georgina Rai,

Martí Garçon, Philip W. Miller

et al.

Organometallics, Journal Year: 2025, Volume and Issue: 44(6), P. 716 - 719

Published: March 8, 2025

We report the synthesis and solid-state characterization of two unusual Pd2Zn2 clusters formed from partial reduction [PdL2Cl2] precursors (L2 = dcpe or dppe) with metallic zinc. The new have been characterized by single crystal X-ray diffraction contain a Pd2Zn2Cl3 core capped chelating phosphine ligands Zn in formal +1.5 oxidation state. While they possess near tetrahedral arrangement metal ions, calculations bonding analysis (NBO, AIM) suggest that there is limited Zn- - -Zn these species. Characterization solution state suggestive dynamic behavior on dissolution, both diamagnetic paramagnetic species observed NMR EPR spectroscopy. One was shown to be an effective precursor for homocoupling aryl bromide.

Language: Английский

Citations

0
Size‐Controllable Palladium Nanoparticles: Superior Catalytic Activities Over Identically Ligated Tri‐Palladium Clusters DOI
Meng Chen,

Zhixin He,

Yingrui Song

et al.

ChemistrySelect, Journal Year: 2025, Volume and Issue: 10(17)

Published: April 29, 2025

Abstract Small‐sized palladium nanoparticles (PdNPs) are highly active nanocatalysts and have attracted great interest for many years. However, preparing size‐controllable PdNPs is still challenging. Here, ultrafine air‐stable PdNPs‐1/2 (2.0 ± 0.3/1.2 0.4 nm) stabilized by multiple nucleophilic ligands (phosphines, thiols, anions) were prepared, their sizes could be successfully regulated simply varying anionic (SbF 6 − or BF 4 ). We further investigated catalytic activities compared them with identically ligated tri‐palladium clusters [Pd 3 ] + ‐1/2 . These homogeneous presented superior both the Suzuki–Miyaura cross‐coupling (SMCC) 4‐nitrophenol reduction reactions. The PdNPs‐1 exhibited highest activity reactions good applicability to different substrates, reaction rate constant reached 1.10 × 10 −2 S −1 reduction. results revealed that employment of significantly affects size synergistic activities. This work will open possibilities controllable size, dispersity, stability a broad range applications.

Language: Английский

Citations

0
Discrete Metal Clusters Supported by Heavier Group-14-Element Ligands DOI Creative Commons
Yusuke Sunada

Coordination chemistry research., Journal Year: 2025, Volume and Issue: unknown, P. 100007 - 100007

Published: May 1, 2025

Language: Английский

Citations

0
Chemical Activation of Atom-Precise Pd3 Nanoclusters on γ-Al2O3 Supports for Transfer Hydrogenation Reactions DOI
Siddhant Singh,

Dami Wi,

Kholoud E. Salem

et al.

Nanoscale, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

Pd 3 nanoclusters on Al 2 O supports were activated by reducing agents. The activity and selectivity of the catalysts for transfer hydrogenation cinnamaldehyde was a function both identity loading agent used.

Language: Английский

Citations

0
Heterogenization of Palladium Trimer and Nanoparticles through Polymerization Boosted Catalytic Efficiencies in Recyclable Coupling and Reduction Reactions DOI
Miaomiao Wang,

Zhixin He,

Meng Chen

et al.

Chemistry - A European Journal, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 15, 2024

The development of heterogeneous palladium catalysts has shown continuous vitality in the field catalysis and materials. In this work, we report one concise free radical polymerization approach to accomplish aromatic trimer functionalized polymers PSS

Language: Английский

Citations

0
The catalytic performance of (ZrO)n (n = 1–4, 12) clusters for Suzuki–Miyaura cross-coupling: a DFT study DOI
Zhichao Zhang,

Wen‐Lu Wang,

Hao Zhong

et al.

Dalton Transactions, Journal Year: 2024, Volume and Issue: 53(45), P. 18258 - 18267

Published: Jan. 1, 2024

Superatoms are special clusters with similar physicochemical properties to individual atoms in the periodic table, which open up new avenues for exploring inexpensive catalysts. Given that ZrO superatom possesses same number of valence electrons as a Pd atom, mechanisms Suzuki-Miyaura reaction catalyzed by (ZrO)

Language: Английский

Citations

0