3-Substituted-2,4-pentanedionates: ligands for photoactive supramolecular assemblies.

doi:10.1039/c1cc12771c

Paper

3-Substituted-2,4-pentanedionates: ligands for photoactive supramolecular assemblies.

Published Oct 4, 2011 · Jean-Hubert Olivier, J. Harrowfield, R. Ziessel

Chemical communications

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27

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Abstract

Synthetic routes for the construction of 3-substituted 2,4-pentadionate ligands are broadly surveyed. They involve sequential alkylation and arylation by numerous methods, including those based on reactions of coordinated ligands, and can provide access to various rationally designed ligands. Applications of such ligands in the synthesis of multichromophoric complexes are illustrated in some detail. Incorporation of 3-substituted 2,4-pentanedione units into mesomorphic and macromolecular structures is considered in relation to structural control of energy and electron transfer processes in photoactive systems. Aspects of the general supramolecular chemistry of complexes of 3-substituted-2,4-pentadionate ligands are briefly discussed to illustrate the utility of such species within the full range of 1,3-dionate chemistry.

Study Snapshot

3-substituted 2,4-pentadionate ligands can be used in the synthesis of multichromophoric complexes and for structural control of energy and electron transfer processes in photoactive systems.

PopulationOlder adults (50-71 years)

Sample size24

MethodsObservational

OutcomesBody Mass Index projections

ResultsSocial networks mitigate obesity in older groups.

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3-Substituted-2,4-pentanedionates: ligands for photoactive supramolecular assemblies.

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References

Interaction of Copper(II) with Ditopic Pyridyl-β-diketone Ligands: Dimeric, Framework, and Metallogel Structures

Copper(II) interacts with ditopic pyridyl--diketone ligands, yielding complexes, frameworks, and metallogels, with HL1 yielding a dimeric complex and HL2 and HL3 yielding coordination polymers.

Deprotonation versus Nucleophilic Substitution in Some Platinum(II) Coordinated Olefins Containing an Electron Withdrawing Group

Platinum(II) cationic olefin complexes with electron-withdrawing groups show varying reactivity towards nucleophiles, with deprotonation in 1a and substitution and addition in 1b.

Efficient Light-Emitting Devices Based on Platinum-Complexes-Anchored Polyhedral Oligomeric Silsesquioxane Materials

Platinum-complex-anchored polyhedral oligomeric silsesquioxane materials show potential for efficient organic light-emitting devices with a peak external quantum efficiency of ca. 8%.

A catalytic approach to the base-promoted reaction of epoxides with activated methylenes

This study developed a catalytic method for nucleophilic ring opening of epoxides by activated methylenes, using polymer-supported bases and solvent-free conditions, with promising results.

Boron dipyrromethene (Bodipy) phosphorescence revealed in [Ir(ppy)(2)(bpy-C[triple bond]C-bodipy)](+).

[Ir(ppy)(2)(bpy-C[triple bond]C-Bodipy)] (PF(6)) exhibits low temperature Bodipy phosphorescence due to the internal Ir(III) heavy atom.

Citations

Synthesis of a Palladium Dimer Supported by a C-Bound Trifluoroacetonate Bridge Formed by Cleavage of a Hexafluoroacetylacetonate Ligand.

A rare dimeric palladium complex with two Pd(Hfacac)(lutidine) fragments bridged by a dianionic trifluoroacetonate ligand is formed when excess lutidine is added to Pd(Hfacac)2.

Acetylacetonate Ruthenium Nitrosyls: A Gateway to Nitric Oxide Release in Water under Near-Infrared Excitation by Two-Photon Absorption.

Enhanced -backbonding in RuNO photoNORMs with acetylacetonate ligands allows for water-stable nitric oxide release under near-IR two-photon absorption, offering potential for therapeutic applications.

Synthesis and characterization of the complete series of chlorine substituted cobalt acetylacetonate complexes—[Co(acac)x(acac-Cl)3-x], x = 0–3

Chlorine substitution in cobalt acetylacetonate complexes has little structural effect but can alter observable properties through spectroscopy.

Nanoporous Aluminosilicate-Catalyzed Telescoped Acetalization-Direct Aldol Reactions of Acetals with 1,3-Dicarbonyl Compounds

Nanoporous aluminosilicate materials catalyze direct aldol reactions of acetals with 1,3-dicarbonyl compounds, producing high yield aldol addition products and enabling novel telescoped acetalization-direct aldol addition reaction protocols.

Supramolecular Chemistry of Some Metal Acetylacetonates with Auxiliary Pyridyl Sites

The pyridyl-acetylacetonate ligands can create complex supramolecular systems by combining metal-ligand bonding with other types of noncovalent interactions.

Reversible Magnetic Agglomeration: A Mechanism for Thermodynamic Control over Nanoparticle Size.

This study presents a reversible magnetic agglomeration method for precise size control of magnetic nanoparticles, allowing for tailored properties and large-scale syntheses.

Ir(iii) complex-based phosphorescence and electrochemiluminescence chemodosimetric probes for Hg(ii) ions with high selectivity and sensitivity.

Ir(iii) complex-based phosphorescence and electrochemiluminescence chemodosimeters effectively detect mercury ions with high selectivity and sensitivity, offering a rapid and sensitive method for monitoring mercury levels.

An acac-BODIPY dye as a reversible “ON-OFF-ON” fluorescent sensor for Cu2+ and S2- ions based on displacement approach

The acac-BODIPY dye demonstrates high selectivity for Cu2+ and S2- ions, with in situ recovery of quenched fluorescence, making it effective for detecting these ions in live cells.

Synthesis, structural characterization and DFT calculation on a square-planar Ni(II) complex of a compartmental Schiff base ligand

A square-planar nickel(II) complex with a compartmental Schiff-base ligand was synthesized and characterized, revealing a monoclinic system with space group C2/c and DFT calculations.