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Related Concept Videos

Metal-Ligand Bonds02:51

Metal-Ligand Bonds

The hemoglobin in the blood, the chlorophyll in green plants, vitamin B-12, and the catalyst used in the manufacture of polyethylene all contain coordination compounds. Ions of the metals, especially the transition metals, are likely to form complexes.
In these complexes, transition metals form coordinate covalent bonds, a kind of Lewis acid-base interaction in which both of the electrons in the bond are contributed by a donor (Lewis base) to an electron acceptor (Lewis acid). The Lewis acid in...
Complexation Equilibria: Factors Influencing Stability of Complexes01:09

Complexation Equilibria: Factors Influencing Stability of Complexes

In complexation reactions, metal cations are the electron pair acceptors, and the ligands are the electron pair donors. The stability of the metal complexes depends primarily on the complexing ability of the central metal ion and the nature of the ligands. Generally, the complexing ability of the metal ion depends on the size and charge of the ion. As the metal ion size increases, the stability of the metal complexes decreases, provided that the valency of the metal ion and the ligands remain...
Complexation Equilibria: The Chelate Effect01:19

Complexation Equilibria: The Chelate Effect

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...
Structural Isomerism02:34

Structural Isomerism

Isomerism in Complexes
Isomers are different chemical species that have the same chemical formula. Structural isomerism of coordination compounds can be divided into two subcategories, the linkage isomers and coordination-sphere isomers.
Linkage isomers occur when the coordination compound contains a ligand that can bind to the transition metal center through two different atoms. For example, the CN− ligand can bind through the carbon atom or through the nitrogen atom. Similarly, SCN− can be...
Formation of Complex Ions03:45

Formation of Complex Ions

A type of Lewis acid-base chemistry involves the formation of a complex ion (or a coordination complex) comprising a central atom, typically a transition metal cation, surrounded by ions or molecules called ligands. These ligands can be neutral molecules like H2O or NH3, or ions such as CN− or OH−. Often, the ligands act as Lewis bases, donating a pair of electrons to the central atom. These types of Lewis acid-base reactions are examples of a broad subdiscipline called coordination...
Properties of Organometallic Compounds01:23

Properties of Organometallic Compounds

Organometallic compounds are compounds that contain a carbon–metal bond. Carbon belongs to an organyl group like alkyl, aryl, allyl, or benzyl groups. The metal can be from Group I or Group II of the periodic table, a transition metal, or a semimetal.

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Iridium(III) Luminescent Probe for Detection of the Malarial Protein Biomarker Histidine Rich Protein-II
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Iridium(III) Luminescent Probe for Detection of the Malarial Protein Biomarker Histidine Rich Protein-II

Published on: July 7, 2015

Hg(II)...Pd(II) metallophilic interactions.

Mieock Kim1, Thomas J Taylor, François P Gabbaï

  • 1Department of Chemistry, Texas A&M University, College Station, Texas 77843, USA.

Journal of the American Chemical Society
|April 25, 2008
PubMed
Summary
This summary is machine-generated.

New supramolecular complexes form when bis(pentafluorophenyl)mercury reacts with palladium(II) complexes. These structures feature a mercury synthon sandwiched by palladium, indicating a novel Hg-Pd metallophilic interaction.

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Ion Mobility-Mass Spectrometry Techniques for Determining the Structure and Mechanisms of Metal Ion Recognition and Redox Activity of Metal Binding Oligopeptides
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Ion Mobility-Mass Spectrometry Techniques for Determining the Structure and Mechanisms of Metal Ion Recognition and Redox Activity of Metal Binding Oligopeptides

Published on: September 7, 2019

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Analysis of AtHIRD11 Intrinsic Disorder and Binding Towards Metal Ions by Capillary Gel Electrophoresis and Affinity Capillary Electrophoresis
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Ion Mobility-Mass Spectrometry Techniques for Determining the Structure and Mechanisms of Metal Ion Recognition and Redox Activity of Metal Binding Oligopeptides
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Ion Mobility-Mass Spectrometry Techniques for Determining the Structure and Mechanisms of Metal Ion Recognition and Redox Activity of Metal Binding Oligopeptides

Published on: September 7, 2019

Area of Science:

  • Organometallic Chemistry
  • Supramolecular Chemistry
  • Coordination Chemistry

Background:

  • Palladium(II) complexes are versatile building blocks in coordination chemistry.
  • Mercury compounds offer unique electronic properties for complex formation.
  • Supramolecular assemblies allow for the design of novel materials with tailored properties.

Purpose of the Study:

  • To synthesize and characterize novel supramolecular complexes involving mercury and palladium.
  • To investigate the nature of interactions between mercury and palladium centers in these complexes.
  • To explore the potential of these complexes in materials science.

Main Methods:

  • Reaction of bis(pentafluorophenyl)mercury with [Pd(salophen)] and [Pd(N--C)(OAc)]2 complexes.
  • UV-vis spectroscopy for in-solution observation of complex formation.
  • Full structural characterization of the resulting supramolecular complexes.

Main Results:

  • Formation of supramolecular complexes [1-(I)2] and [1-(II)2] where mercury is sandwiched by palladium.
  • Observation of short Hg-Pd distances (3.2841(2) Å and 3.1065(8) Å).
  • Evidence for Hg-Pd metallophilic interactions and Pd(II)-->Hg(II) donor-acceptor interactions.

Conclusions:

  • Successful synthesis of novel mercury-palladium supramolecular complexes.
  • Confirmation of significant Hg-Pd metallophilic interactions.
  • These findings open avenues for designing new organometallic materials.