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

Metal-Ligand Bonds02:51

Metal-Ligand Bonds

22.9K
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...
22.9K
Valence Bond Theory02:42

Valence Bond Theory

10.2K
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...
10.2K
Crystal Field Theory - Octahedral Complexes02:58

Crystal Field Theory - Octahedral Complexes

29.1K
Crystal Field Theory
To explain the observed behavior of transition metal complexes (such as colors), a model involving electrostatic interactions between the electrons from the ligands and the electrons in the unhybridized d orbitals of the central metal atom has been developed. This electrostatic model is crystal field theory (CFT). It helps to understand, interpret, and predict the colors, magnetic behavior, and some structures of coordination compounds of transition metals.
CFT focuses on...
29.1K
Complexation Equilibria: The Chelate Effect01:19

Complexation Equilibria: The Chelate Effect

883
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...
883
Coordination Number and Geometry02:57

Coordination Number and Geometry

17.7K
For transition metal complexes, the coordination number determines the geometry around the central metal ion. Table 1 compares coordination numbers to molecular geometry. The most common structures of the complexes in coordination compounds are octahedral, tetrahedral, and square planar.
17.7K
EDTA: Chemistry and Properties01:22

EDTA: Chemistry and Properties

2.8K
Polydentate ligands are most widely used in complexometric titrations because they form more stable complexes with the metal ions than mono- or bidentate ligands due to the chelate effect. Examples of polydentate ligands are ethylenediaminetetraacetic acid (EDTA), crown ethers, and cryptands. The most important feature of optimal polydentate ligands is the ability to form 1:1 complexes in a single-step process. Amino carboxylic acid derivatives are frequently used as complexing agents. EDTA is...
2.8K

You might also read

Related Articles

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

Sort by
Same author

Polydopamine-Coated Fe,Cr Co-Doped NiS<sub>2</sub> with M-N Coordination for Durable Oxygen Evolution.

Inorganic chemistry·2026
Same author

Cage Catalyst: Tandem Assembly and Temperature-Regulated Symmetry Breaking of Endogenous Metal Cluster for Phase-Controlled CO<sub>2</sub> Electroreduction.

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

Anion-Guided Controlled Molecular Growth of Multi-Component Giant Mo Wheel Family for Enhanced Oxidation Catalysis.

Journal of the American Chemical Society·2026
Same author

Unveiling the role of structural water and achieving enhanced Zn-ion storage <i>via</i> thermal dehydration of a Ni-containing heteropolyoxovanadate cathode.

Dalton transactions (Cambridge, England : 2003)·2026
Same author

Constructing Denser Hydrogen-Bonding Networks in Polyoxometalate-Based Coordination Polymers for Enhancing Proton Conduction.

Inorganic chemistry·2026
Same author

Confining Amphiprotic Proton Source in Polyoxometalate-Based Metal-Organic Frameworks for Enhancing Proton Conduction.

Langmuir : the ACS journal of surfaces and colloids·2026

Related Experiment Video

Updated: Nov 22, 2025

High Resolution Physical Characterization of Single Metallic Nanoparticles
09:56

High Resolution Physical Characterization of Single Metallic Nanoparticles

Published on: June 28, 2019

6.0K

An octahedral polyoxomolybdate-organic molecular cage.

Xin-Ying Wang1, Wei-Chao Chen1, Kui-Zhan Shao1

  • 1Key Laboratory of Polyoxometalate Science, Department of Chemistry, Northeast Normal University, Ren Min Street No. 5268, Changchun, Jilin 130024, P. R. China. chenwc061@nenu.edu.cn zhaoliang@nenu.edu.cn.

Chemical Communications (Cambridge, England)
|January 7, 2021
PubMed
Summary

Researchers synthesized a novel molybdenum-organic molecular cage using {MoVI2O5} building blocks and BTC ligands. This groundbreaking structure represents the first isopolyoxomolybdates(vi)-organic molecular cage, with Cs+-exchange experiments detailed.

More Related Videos

Surface Functionalization of Metal-Organic Frameworks for Improved Moisture Resistance
08:12

Surface Functionalization of Metal-Organic Frameworks for Improved Moisture Resistance

Published on: September 5, 2018

16.4K
Author Spotlight: Accelerating Discovery in Microporous Material Chemistry
07:20

Author Spotlight: Accelerating Discovery in Microporous Material Chemistry

Published on: October 6, 2023

4.1K

Related Experiment Videos

Last Updated: Nov 22, 2025

High Resolution Physical Characterization of Single Metallic Nanoparticles
09:56

High Resolution Physical Characterization of Single Metallic Nanoparticles

Published on: June 28, 2019

6.0K
Surface Functionalization of Metal-Organic Frameworks for Improved Moisture Resistance
08:12

Surface Functionalization of Metal-Organic Frameworks for Improved Moisture Resistance

Published on: September 5, 2018

16.4K
Author Spotlight: Accelerating Discovery in Microporous Material Chemistry
07:20

Author Spotlight: Accelerating Discovery in Microporous Material Chemistry

Published on: October 6, 2023

4.1K

Area of Science:

  • Inorganic Chemistry
  • Materials Science
  • Supramolecular Chemistry

Background:

  • Polyoxometalates (POMs) are versatile inorganic clusters with diverse structures and properties.
  • Organic-inorganic hybrid materials offer tunable functionalities by combining the strengths of both components.
  • Molecular cages provide confined environments for hosting guest molecules and catalyzing reactions.

Purpose of the Study:

  • To synthesize and characterize a novel molybdenum-organic molecular cage.
  • To investigate the structural and chemical properties of the new cage.
  • To explore the potential applications of this new class of materials, including ion-exchange properties.

Main Methods:

  • Solvothermal synthesis to construct the molecular cage.
  • Single-crystal X-ray diffraction for structural elucidation.
  • Infrared spectroscopy, UV-Vis spectroscopy, and thermogravimetric analysis for characterization.
  • Cesium (Cs+) ion-exchange experiments to study host-guest interactions.

Main Results:

  • Successful synthesis of an unprecedented molybdenum-organic molecular cage based on {MoVI2O5} secondary building blocks and BTC ligands.
  • Systematic characterization confirmed the unique cage structure, representing the first isopolyoxomolybdates(vi)-organic molecular cage.
  • Detailed investigation of Cs+-exchange experiments revealed insights into the cage's ion-hosting capabilities.

Conclusions:

  • The study reports the first isopolyoxomolybdates(vi)-organic molecular cage, expanding the family of polyoxometalate-based materials.
  • The synthesized cage exhibits potential for applications in ion exchange and host-guest chemistry.
  • This work opens new avenues for designing advanced functional materials based on polyoxometalate frameworks.