Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Molecular wires built from binuclear cyclometalated complexes.

Sandrine Fraysse1, Christophe Coudret, Jean-Pierre Launay

  • 1CEMES-CNRS, 29, Rue Jeanne Marvig, BP 4347, 31055 Toulouse Cedex 4, France.

Journal of the American Chemical Society
|May 8, 2003
PubMed
Summary

New binuclear ruthenium complexes with cyclometalated ends were synthesized. The anthracene spacer demonstrated efficient metal-metal interaction, showing significant electronic coupling for these novel ruthenium complexes.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Counterion Effects in [Ru(bpy)<sub>3</sub>](X)<sub>2</sub>-Photocatalyzed Energy Transfer Reactions.

JACS Au·2024
Same author

Self-Assembled Bis-Acridinium Tweezer Equilibria Controlled by Multi-Responsive Properties.

Chemistry (Weinheim an der Bergstrasse, Germany)·2024
Same author

Iron-based hybrid polyionic complexes as chemical reservoirs for the pH-triggered synthesis of Prussian blue nanoparticles.

Journal of colloid and interface science·2023
Same author

Design and synthesis of multi-targeted nanoparticles for gene delivery to breast cancer tissues.

Naunyn-Schmiedeberg's archives of pharmacology·2022
Same author

Heterogeneous Oxysulfide@Fluoride Core/Shell Nanocrystals for Upconversion-Based Nanothermometry.

ACS nano·2022
Same author

The role of microplastics in microalgae cells aggregation: A study at the molecular scale using atomic force microscopy.

The Science of the total environment·2022

Area of Science:

  • Coordination Chemistry
  • Organometallic Chemistry
  • Materials Science

Background:

  • Ruthenium polypyridyl complexes are widely studied for their photophysical and electrochemical properties.
  • Binuclear complexes offer opportunities for enhanced electronic communication and novel functionalities.
  • Cyclometalated ligands provide robust coordination environments and tunable electronic properties.

Purpose of the Study:

  • To synthesize and characterize a series of binuclear ruthenium complexes with cyclometalated ends and varied bridging spacers.
  • To investigate the electrochemical properties and electronic communication between the two ruthenium centers.
  • To evaluate the influence of different spacer units on the metal-metal interaction and electronic coupling.

Main Methods:

Related Experiment Videos

  • Sonogashira coupling reactions for synthesizing complexes with bis-ethynyl aryl spacers.
  • Oxidative homocoupling for preparing complexes with triple bond spacers.
  • Cyclometalation of ruthenium precursors with 2-phenylpyridine derivatives.
  • Electrochemical techniques including cyclic voltammetry and differential pulse voltammetry.
  • Controlled potential electrolysis and UV-Vis-NIR spectroscopy for analyzing intervalence transitions.

    • Main Results:

    • Successfully synthesized binuclear ruthenium complexes with spacers containing one or two triple bonds, or bis-ethynyl aryl groups (benzene, thiophene, anthracene).
    • Observed facile oxidation of binuclear complexes near 0.5 V, with a single anodic wave indicating closely spaced one-electron processes.
    • Determined comproportionation constants and calculated electronic coupling elements (V(ab)), revealing relatively large couplings.
    • Identified the anthracene-containing spacer as particularly efficient in mediating metal-metal interactions.

    Conclusions:

    • The synthesized binuclear ruthenium complexes exhibit tunable electronic communication modulated by the spacer unit.
    • The anthracene spacer significantly enhances electronic coupling between the ruthenium centers.
    • Theoretical calculations support the observed electronic coupling trends, providing insights into structure-property relationships.