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 Concept Videos

Factors Affecting Solubility04:01

Factors Affecting Solubility

33.9K
Compared with pure water, the solubility of an ionic compound is less in aqueous solutions containing a common ion (one also produced by dissolution of the ionic compound). This is an example of a phenomenon known as the common ion effect, which is a consequence of the law of mass action that may be explained using Le Chȃtelier’s principle. Consider the dissolution of silver iodide:
33.9K
Colors and Magnetism03:02

Colors and Magnetism

12.3K
Color in Coordination Complexes
When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human...
12.3K
Complexation Equilibria: Factors Influencing Stability of Complexes01:09

Complexation Equilibria: Factors Influencing Stability of Complexes

493
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...
493
Oxidation Numbers03:14

Oxidation Numbers

38.1K
In redox reactions, the transfer of electrons occurs between reacting species. Electron transfer is described by a hypothetical number called the oxidation number (or oxidation state). It represents the effective charge of an atom or element, which is assigned using a set of rules.
38.1K
Complexometric Titration: Ligands00:43

Complexometric Titration: Ligands

1.1K
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...
1.1K
Ionic Strength: Effects on Chemical Equilibria01:19

Ionic Strength: Effects on Chemical Equilibria

1.8K
The addition of an inert ionic compound increases the solubility of a sparingly soluble salt. For example, adding potassium nitrate to a saturated solution of calcium sulfate significantly enhances the solubility of calcium sulfate. Le Châtelier's principle cannot predict this shift in the equilibrium. Instead, this could be explained in terms of changes in the effective concentration of the ions in solution in the presence of added inert salt.
In this solution, the primary...
1.8K

You might also read

Related Articles

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

Sort by
Same author

Synthesis, Structure, and Reactivity of a Magnesium(0) Complex with a Polarized Mg<sup>δ-</sup>─Ca<sup>δ+</sup> Bond.

Angewandte Chemie (International ed. in English)·2026
Same author

A Modular Approach to Asymmetric Mg(I) Complexes Using a Unique Cyclopentadienyl Mg(I) Complex.

Angewandte Chemie (International ed. in English)·2025
Same author

Mono- and dinuclear β-oxo-δ-diiminate (BODDI) based catalysts for the ring-opening polymerization of L-lactide.

Dalton transactions (Cambridge, England : 2003)·2025
Same author

Syntheses and Reactivity of Yb and Sm Inverse Sandwich Arene Complexes.

Chemistry (Weinheim an der Bergstrasse, Germany)·2025
Same author

Redox-active inverse crowns - pockets for heavier chalcogenides.

Dalton transactions (Cambridge, England : 2003)·2025
Same author

Trends in benzene inverse sandwich complexes of the alkaline-earth metals Mg, Ca, Sr and Ba.

Chemical science·2025
Same journal

An intrinsically stretchable nanowire-based sensing patch for wearable analysis of sweat chloride ion composition.

Chemical communications (Cambridge, England)·2026
Same journal

A sterically rigid-flexible balanced NHC-Pd precatalyst for room-temperature solvent-free C-N coupling of benzocyclic amines.

Chemical communications (Cambridge, England)·2026
Same journal

Portable fluorescent conjugated microporous polymer sensor coupled with a smartphone for on-site Fe<sup>3+</sup> detection in water.

Chemical communications (Cambridge, England)·2026
Same journal

Accelerated discovery of NO<sub>3</sub>RR single-atom catalysts <i>via</i> high-throughput DFT and machine learning.

Chemical communications (Cambridge, England)·2026
Same journal

Wafer-scale robust graphene electronics under industrial processing conditions.

Chemical communications (Cambridge, England)·2026
Same journal

Subnanoscale IrW oxide anodes: breaking immiscibility for high activity and durability in water electrolysis.

Chemical communications (Cambridge, England)·2026
See all related articles

Related Experiment Video

Updated: Sep 16, 2025

Bulk and Thin Film Synthesis of Compositionally Variant Entropy-stabilized Oxides
09:41

Bulk and Thin Film Synthesis of Compositionally Variant Entropy-stabilized Oxides

Published on: May 29, 2018

9.6K

Low-coordinate calcium peroxide and oxide complexes.

Stefan Thum1, Marcel A Schmidt1, Jens Langer1

  • 1Inorganic and Organometallic Chemistry, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 1, 91058 Erlangen, Germany. sjoerd.harder@fau.de.

Chemical Communications (Cambridge, England)
|July 10, 2025
PubMed
Summary
This summary is machine-generated.

A novel calcium(I) complex with bulky ligands enabled the synthesis of binuclear calcium-oxygen compounds. The unstable calcium oxide complex was formed via a solvent-free reaction.

More Related Videos

Fabrication of Spatially Confined Complex Oxides
08:45

Fabrication of Spatially Confined Complex Oxides

Published on: July 1, 2013

9.7K
Two-way Valorization of Blast Furnace Slag: Synthesis of Precipitated Calcium Carbonate and Zeolitic Heavy Metal Adsorbent
11:14

Two-way Valorization of Blast Furnace Slag: Synthesis of Precipitated Calcium Carbonate and Zeolitic Heavy Metal Adsorbent

Published on: February 21, 2017

12.5K

Related Experiment Videos

Last Updated: Sep 16, 2025

Bulk and Thin Film Synthesis of Compositionally Variant Entropy-stabilized Oxides
09:41

Bulk and Thin Film Synthesis of Compositionally Variant Entropy-stabilized Oxides

Published on: May 29, 2018

9.6K
Fabrication of Spatially Confined Complex Oxides
08:45

Fabrication of Spatially Confined Complex Oxides

Published on: July 1, 2013

9.7K
Two-way Valorization of Blast Furnace Slag: Synthesis of Precipitated Calcium Carbonate and Zeolitic Heavy Metal Adsorbent
11:14

Two-way Valorization of Blast Furnace Slag: Synthesis of Precipitated Calcium Carbonate and Zeolitic Heavy Metal Adsorbent

Published on: February 21, 2017

12.5K

Area of Science:

  • Organometallic Chemistry
  • Inorganic Synthesis
  • Calcium Chemistry

Background:

  • Superbulky ligands are crucial for stabilizing reactive metal centers.
  • Dinitrogen (N22-) can act as a synthon in inorganic synthesis.

Purpose of the Study:

  • To synthesize and characterize novel binuclear calcium complexes.
  • To explore the reactivity of a calcium(I) dinitrogen complex.

Main Methods:

  • Synthesis of a calcium(I) synthon with bulky β-diketiminate ligands (BDI*) and a N22- dianion.
  • Reaction of the calcium(I) complex with N2O gas under solvent-free conditions.

Main Results:

  • The key intermediate [(BDI*)Ca]2(N2) was synthesized.
  • Binuclear calcium-peroxo and calcium-oxo complexes, (BDI*)Ca(μ2-O2)Ca(BDI*) and (BDI*)Ca(μ2-O)Ca(BDI*), were obtained.
  • The calcium oxide complex was found to be unstable in solution.

Conclusions:

  • A novel synthetic route to binuclear calcium-oxygen complexes was established.
  • Solvent-free reactions are effective for synthesizing unstable metal-oxide species.
  • The calcium(I) dinitrogen complex serves as a versatile precursor for reactive calcium compounds.