A5064331104- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Catalytic Cross-Coupling Reactions
- Organometallic Complex Synthesis and Catalysis
- Crystallography and molecular interactions
- Synthetic Organic Chemistry Methods
- Coordination Chemistry and Organometallics
- Asymmetric Hydrogenation and Catalysis
- Catalytic C–H Functionalization Methods
- Metal complexes synthesis and properties
- N-Heterocyclic Carbenes in Organic and Inorganic Chemistry
- Crystal structures of chemical compounds
- Oxidative Organic Chemistry Reactions
- Chemical Synthesis and Analysis
- Nanomaterials for catalytic reactions
- Chemical Synthesis and Reactions
- Catalytic Processes in Materials Science
- Ionic liquids properties and applications
- Polyoxometalates: Synthesis and Applications
- Synthesis and Reactivity of Sulfur-Containing Compounds
- Asymmetric Synthesis and Catalysis
- Systemic Lupus Erythematosus Research
- Metal-Organic Frameworks: Synthesis and Applications
- Nanotechnology research and applications
- Chemical and Physical Properties of Materials
University of Wrocław
2009-2022
Wrocław University of Science and Technology
2002
Abstract A series of PEPPSI‐type palladium(II) complexes was synthesized that contain 3‐chloropyridine as an easily removable ligand and a triazolylidene strongly donating mesoionic spectator ligand. Catalytic tests in Suzuki–Miyaura cross‐coupling reactions revealed the activity these towards aryl bromides chlorides at moderate temperatures (50 °C). However, impact steric shielding inverse observed with related normal Nheterocyclic carbenes (imidazol‐2‐ylidenes) sterically congested mesityl...
Abstract Four new palladium(II) complexes of the type [Pd(NHC) 2 X ] with N‐heterocyclic carbene (NHC) ligands relatively small steric hindrance were prepared and characterized by using spectroscopic X‐ray methods. For [Pd(bmim‐y) Br (bmim‐y=1‐butyl‐3‐methylimidazol‐2‐ylidene), crystals both cis trans isomers obtained. All studied demonstrated very high activity in Suzuki–Miyaura cross‐coupling ethylene glycol, which yielded turnover numbers up to 760 000. High was also observed if NaBPh 4...
Rhodium colloids have been prepared by chemical reduction of an aqueous solution rhodium trichloride with different aliphatic alcohols (from methanol to pentanol) in the presence polyvinylpyrrolidone (PVP) as stabilizing agent. The obtained Rh(0) nanoparticles characterized structurally means X-ray powder diffraction, scanning electron microscopy and transmission microscopy. Catalytic activity synthesized Rh/PVP has evidenced Suzuki–Miyaura coupling reaction phenylboronic acid...
Abstract A Pd complex with the H‐spirophosphorane ligand, PdCl 2 {P(OCMe CMe O)OC 6 H 4 NH } (Cat. 1), was used as catalyst in carbonylative Suzuki coupling of substituted iodobenzenes arylboronic acids and sodium tetraphenylborate. Substituted diarylketones were obtained good to excellent yields a selectivity over 95 % under 1 atm CO 1.5 mol catalyst. The promoting role ligand catalytic process evidenced. We X‐ray photoelectron spectroscopy, TEM, 31 P NMR spectroscopy reveal that during...
The title compound, [Pd2(C12H10O3P)2Cl2(C12H11O3P)2], consists of a dinuclear mu-chloro-bridged palladium unit with two diphenoxyphosphinite groups per Pd atom, linked together by hydrogen bond. asymmetric contains one half the molecule, other generated an inversion centre. geometry around P atoms may be described as distorted tetrahedral. Adjacent molecules complex are weak C-H...O and C-H...Cl bonds. structure is additionally stabilized pi-pi stacking interactions between aryl rings. These...
The five-membered ring in the title compound, C(6)H(13)O(3)P, exists an envelope conformation with one of C atoms at flap position. coordination geometry around P atom is a distorted tetra-hedron. crystal structure stabilized by several weak C-H⋯O and P-H⋯O hydrogen bonds, forming three-dimensional network.
The title compound, trans-[Pd(C6H4I)I(C18H15P)2], has been crystallized from dichloromethane. crystal structure of this complex reveals a slightly distorted square-planar coordination geometry the Pd atom, which lies on twofold rotation axis. P atoms in triphenylphosphine ligands lie out planes phenyl rings. is stabilized by short intermolecular I⋯I contacts, weak C—H⋯π(arene) hydrogen bonds and π–π stacking interactions.