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Related Concept Videos

Properties of Transition Metals02:58

Properties of Transition Metals

29.9K
Transition metals are defined as those elements that have partially filled d orbitals. As shown in Figure 1, the d-block elements in groups 3–12 are transition elements. The f-block elements, also called inner transition metals (the lanthanides and actinides), also meet this criterion because the d orbital is partially occupied before the f orbitals.
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Metallic Solids02:37

Metallic Solids

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Metallic solids such as crystals of copper, aluminum, and iron are formed by metal atoms. The structure of metallic crystals is often described as a uniform distribution of atomic nuclei within a “sea” of delocalized electrons. The atoms within such a metallic solid are held together by a unique force known as metallic bonding that gives rise to many useful and varied bulk properties.
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability....
20.7K
Ions as Acids and Bases02:54

Ions as Acids and Bases

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Salts with Acidic Ions
Salts are ionic compounds composed of cations and anions, either of which may be capable of undergoing an acid or base ionization reaction with water. Aqueous salt solutions, therefore, may be acidic, basic, or neutral, depending on the relative acid-base strengths of the salt’s constituent ions. For example, dissolving the ammonium chloride in water results in its dissociation, as described by the equation:
26.5K
Strong Acid and Base Solutions03:22

Strong Acid and Base Solutions

35.8K
A strong acid is a compound that dissociates completely in an aqueous solution and produces a concentration of hydronium ions equal to the initial concentration of acid. For example, 0.20 M hydrobromic acid will dissociate completely in water and produces 0.20 M of hydronium ions and 0.20 M of bromide ions.
35.8K
Weak Base Solutions03:21

Weak Base Solutions

25.3K
Some compounds produce hydroxide ions when dissolved by chemically reacting with water molecules. In all cases, these compounds react only partially and so are classified as weak bases. These types of compounds are also abundant in nature and important commodities in various technologies. For example, global production of the weak base ammonia is typically well over 100 metric tons annually, being widely used as an agricultural fertilizer, a raw material for chemical synthesis of other...
25.3K
Formation of Complex Ions03:45

Formation of Complex Ions

26.1K
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...
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Updated: Feb 4, 2026

Combining Solid-state and Solution-based Techniques: Synthesis and Reactivity of ChalcogenidoplumbatesII or IV
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Combining Solid-state and Solution-based Techniques: Synthesis and Reactivity of ChalcogenidoplumbatesII or IV

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Between single ion magnets and macromolecules: a polymer/transition metal-based semi-solid solution.

Anna M Majcher1, Paweł Dąbczyński1, Mateusz M Marzec2

  • 1Faculty of Physics, Astronomy and Applied Computer Science , Jagiellonian University , Łojasiewicza 11 , 30-348 Krakow , Poland .

Chemical Science
|October 6, 2018
PubMed
Summary

Researchers developed a novel magnetic polymer by cross-linking poly(4-vinylpyridine) with cobalt(ii) ions. This new material combines single-ion magnet properties with polymer processability for advanced magnetic applications.

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Area of Science:

  • Materials Science
  • Polymer Chemistry
  • Magnetism

Background:

  • Developing functional magnetic materials is crucial for high-density memory and molecular spintronics.
  • Single-ion magnets offer slow magnetic relaxation, while polymers provide ease of processing and thin-film formation.

Purpose of the Study:

  • To create a new macromolecular magnetic material by integrating single-ion magnet properties into a polymer matrix.
  • To explore the potential of combining cobalt(ii) ions and poly(4-vinylpyridine) for functional magnetic applications.

Main Methods:

  • Synthesized a polymeric matrix of poly(4-vinylpyridine) (P4VP) cross-linked with cobalt(ii) salt.
  • Utilized secondary ion mass spectroscopy (SIMS) and high-resolution X-ray photoelectron spectroscopy (XPS) to confirm cobalt binding.
  • Investigated magnetic properties, including field-induced magnetic relaxations and relaxation times.

Main Results:

  • Successfully created a network of single-ion magnets within a P4VP polymer matrix.
  • Confirmed cobalt binding within the polymer structure using advanced spectroscopic techniques.
  • Demonstrated preserved magnetic relaxations in both bulk and thin-film forms, with controllable relaxation times up to 5 × 10-6 s via dilution.

Conclusions:

  • This work establishes a new pathway connecting molecular magnetism and polymer science.
  • The developed material exhibits controllable magnetic properties and can be processed into self-organizing functional magnetic thin films.
  • The approach offers a versatile method for creating advanced magnetic materials for next-generation electronic devices.