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Related Concept Videos

Valence Bond Theory02:42

Valence Bond Theory

Coordination compounds and complexes exhibit different colors, geometries, and magnetic behavior, depending on the metal atom/ion and ligands from which they are composed. In an attempt to explain the bonding and structure of coordination complexes, Linus Pauling proposed the valence bond theory, or VBT, using the concepts of hybridization and the overlapping of the atomic orbitals. According to VBT, the central metal atom or ion (Lewis acid) hybridizes to provide empty orbitals of suitable...
Complexometric Titration: Ligands00:43

Complexometric Titration: Ligands

Different monodentate and polydentate ligands are used as complexing agents in complexometric titration reactions. The formation of complexes by mono- and bidentate ligands involves two or more intermediate steps, limiting their use as complexing agents. In comparison, polydentate ligands can form complexes with metal ions in a single-step process, facilitating sharper end points. This means polydentate ligands, such as amino carboxylic acid derivatives, are most commonly employed in...
Colors and Magnetism03:02

Colors and Magnetism

Color in Coordination Complexes
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EDTA: Chemistry and Properties01:22

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Complexation Equilibria: The Chelate Effect01:19

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In complexation reactions, metal atoms or cations interact with ligands to form donor-acceptor adducts called metal complexes. Ligands that bind through one donor site are monodentate, ligands with two donor sites are bidentate, and those with more than two donor sites are polydentate ligands. For example, ethylene diamine is a bidentate ligand that binds through two nitrogen donor atoms, forming a five-membered ring. EDTA is a polydentate ligand that binds through four oxygen and two nitrogen...
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The cationic polymerization mechanism consists of three steps: initiation, propagation, and termination. In the initiation step of the polymerization process, the π bond of a monomer gets protonated by the Lewis acid catalyst, which is formed from boron trifluoride and water. The protonation of the π bond generates a carbocation stabilized by the electron‐donating group. In the propagation step, the π bond of the second monomer acts as a nucleophile and attacks the generated carbocation,...

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Surface Functionalization of Metal-Organic Frameworks for Improved Moisture Resistance
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Triarylboron-functionalized Cu(II) carboxylate paddlewheel complexes.

Barry A Blight1, Alexander F Stewart, Nan Wang

  • 1Department of Chemistry, Queen's University, Kingston, Ontario, K7L 3N6, Canada.

Inorganic Chemistry
|December 31, 2011
PubMed
Summary

Two new copper(II)-carboxylate dimer complexes with triarylborane groups were synthesized. Their stability was tested in the presence of fluoride ions.

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Area of Science:

  • Coordination chemistry
  • Organometallic chemistry
  • Supramolecular chemistry

Background:

  • Copper(II)-carboxylate dimers are versatile building blocks in coordination chemistry.
  • Triarylborane moieties offer unique electronic and structural properties.

Purpose of the Study:

  • To synthesize novel copper(II)-carboxylate dimer complexes functionalized with triarylborane groups.
  • To investigate the stability of these complexes in the presence of fluoride.

Main Methods:

  • Synthesis of copper(II)-carboxylate dimers.
  • Appended peripheral triarylborane functionalities.
  • Fluoride titration experiments.

Main Results:

  • Successful assembly of two distinct copper(II)-carboxylate dimer complexes.
  • Demonstration of complex stability and potential interactions with fluoride.

Conclusions:

  • The synthesized complexes represent new examples of functionalized copper(II) dimers.
  • The study provides insights into the behavior of triarylborane-containing copper complexes under fluoride exposure.