Palladium(II) complexes containing both the chelating .BETA.-diketonato and .SIGMA.-pyridyl ligands. Catalyzed coordination-site exchange reactions.

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概要

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• A novel type of palladium(II) complexes, [Pd(β-dik)(pyridyl)(PPh<SUB>3</SUB>)] and [Pd(β-dik)(pyridyl)]<SUB>2</SUB> containing a chelating acetylacetonate, trifluoroacetylacetonate, or hexafluoroacetylacetonate anion and 2-, 3-, or 4-pyridyl radical as the coexisting ligands were prepared and characterized by elemental analysis and molecular weight determination as well as <SUP>1</SUP>H and <SUP>13</SUP>C NMR spectroscopy. [Pd(acac)(C<SUB>5</SUB>H<SUB>3</SUB>(6-Cl)N–<I>C</I><SUP>2</SUP>)(PPh<SUB>3</SUB>)] is stereochemically rigid in solution but undergoes the coordination-site exchange reaction catalyzed by nitrogen and phosphorus bases and donor solvents. Similar reaction of [Pd(acac)(C<SUB>5</SUB>H<SUB>4</SUB>N–<I>C</I><SUP>2</SUP>)(PPh<SUB>3</SUB>)] is catalyzed by triphenylphosphine liberated by the dinuclear-complex formation reaction (autocatalysis). Intact molecules of [Pd(acac)(C<SUB>5</SUB>H<SUB>4</SUB>N–<I>C</I><SUP>3</SUP> and –<I>C</I><SUP>4</SUP>) (PPh<SUB>3</SUB>)] catalyze mutually their own coordination-site exchange (self-catalysis).

• 公益社団法人 日本化学会の論文

著者

• Isobe Kiyoshi

  Faculty Of Science Osaka City University

• Okeya Seichi

  Faculty Of Education Wakayama University

• Tanaka Hiroshi

  Faculty of Applied Biological Science, Hiroshima University Research Institute, Kagome Co., Ltd.

• ISOBE Kiyoshi

  Faculty of Science, Osaka City University

• Kawaguchi Shinichi

  Faculty of Science Osaka City University

• Kawaguchi Shinichi

  Faculty of Science, Osaka City University

関連論文

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• Syntheses and Structure of New Dinuclear Palladium(II)Complexes with 1, 1, 2, 2-Tetraacetylethanate and β-Diketonate
• Generation of Chlorinated Aromatic Acids during Sludge-Composting and Their Fate in Soils
• C=S Bond Fission in Coordinated Thioureas and Formation of a Sulfide-bridged Dinuclear Pd(II) Complex
• Novel Bis(triphenylphosphine)platinum(II) Complexes Containing a Thiourea or a 1,3-Diethylthiourea Dianion as an N,S-Chelating Ligand
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• Facile Formation and Dissociation Behaviour of C - C Bond Resulted from the Nucleophilic Attack of Carbanions on a Carbonyl Carbon in [Pt(hfac)_2]
• Facile P-C Bond Cleavage in Bis (diphenylphosphino)methane with the Formation of New Pt(II) P, S-Chelates Containing a P-N Bond
• Pressure Study on Electrical and Magnetic Properties of CeMg
• ANALYSIS OF CHINOFORM BINDING TO HUMAN SERUM ALBUMIN BY AN IMPROVED PARTITION EQUILIBRIUM METHOD
• Improving the Sensitivity of H-Type LiTaO_3 Piezoelectric Crystal Gyroscopes (Special Issue on Electromechanical Devices and Their Materials)
• Exchange Scattering of Low-Energy Electrons from Antiferromagnetic NiO
• Influence of Spin-Polarization of Electrons on Resonance Scattering by Neon
• The isolation,characterization,and isomerization of cis- and trans-bis(benzonitrile)dichloroplatinum(II).
• Brown Nitrosylpentamminechromium(III) Salts and Green Nitrosylpentamminechromium(III) Perchlorate
• Five-coordinate bis(1,1,1,5,5,5-hexafluoro-2,4-pentanedionato)(tertiary phosphine)palladium(II) and -platinum(II) complexes. X-ray crystal and molecular structures and fluxional motions in solution.
• Reactions of the bis(.BETA.-diketonato)palladium(II) complexes with various nitrogen bases.
• The crystal and molecular structure of (Pd(tfac)(tfac-O){P(o-tolyl)3}) containing an O-unidentate 1,1,1-trifluoro-2,4-pentanedionate anion as a ligand.
• Reactions of the bis(.BETA.-diketonato)platinum(II) complexes with various nitrogen bases.
• Kinetic studies of the hydrolysis of diketene catalyzed by the chloropalladium(II) complex.
• Palladium(II) complexes containing both the chelating .BETA.-diketonato and .SIGMA.-pyridyl ligands. Catalyzed coordination-site exchange reactions.
• Some palladium(II) complexes containing both the O-unidentate .BETA.-diketonato and 2-,3-, or 4-pyridyl ligands. Dynamic behaviors of trans-(Pd(.BETA.-dik-O)(C5H3(6-Cl)N-C2)(PEt3)2) in solution.
• Di- and trinuclear metal complexes containing a .BETA.-diketonate dianion as a bridging ligand.
• Dinuclear palladium(II) complexes containing anilide anions as bridging ligands.
• Bis(.BETA.-diketonato)-palladium(II) and -platinum(II) complexes.
• .ETA.3-2,4-Pentanedionato(2-) and terminal-carbon-bonded .BETA.-diketonato complexes of platinum(II)
• C,O-chelates of the trifluoroacetylacetonate dianion with palladium(II). Molecular structure of (Pd(tfac(2-)-C,O)(PPh3)(2,6-Me2-py))

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