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

Colors and Magnetism03:02

Colors and Magnetism

14.9K
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...
14.9K
Ladder Diagrams: Redox Equilibria01:30

Ladder Diagrams: Redox Equilibria

866
Ladder diagrams are useful tools for understanding redox equilibrium reactions, especially the effects of concentration changes on the electrochemical potential of the reaction. The vertical axis in the redox ladder diagrams represents the electrochemical potential, E. The area of predominance is demarcated using the Nernst equation.
Consider the Fe3+/Fe2+ half-reaction, which has a standard-state potential of +0.771 V. At potentials more positive than +0.771 V, Fe3+ predominates, whereas Fe2+...
866
Valence Bond Theory02:42

Valence Bond Theory

11.9K
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...
11.9K
Crystal Field Theory - Octahedral Complexes02:58

Crystal Field Theory - Octahedral Complexes

32.2K
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...
32.2K
Redox Titration: Iodimetry and Iodometry01:23

Redox Titration: Iodimetry and Iodometry

7.4K
Iodometry and iodimetry are analytical methods used to determine the concentration of oxidizing or reducing agents using iodine. In iodometric titrations, the oxidizing analyte solution is usually acidified and treated with an excess of iodide ions, which generates an equivalent amount of iodine in equilibrium with triiodide. The released iodine is subsequently titrated directly against a standardized reducing agent. As the dilute iodine color becomes pale yellow, a few drops of freshly...
7.4K
Redox Equilibria: Overview01:23

Redox Equilibria: Overview

1.8K
A reduction-oxidation reaction is commonly called a redox reaction. In a redox reaction, electrons are transferred from one species to another rather than being shared between or among atoms. The reducing agent or reductant is the species that loses electrons and gets oxidized in the process. The species that gains electrons and gets reduced in the process is the oxidizing agent or oxidant. Redox reactions are represented as two separate equations called half-reactions, where one equation...
1.8K

You might also read

Related Articles

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

Sort by
Same author

Purification of Actinium-225 from Thorium via Selective Precipitation.

Molecules (Basel, Switzerland)·2026
Same author

Developing aluminum molecular plating for neutron-induced reaction target fabrication.

Scientific reports·2026
Same author

Transient Triamidoamine Neptunium(V)-Mono(Imido) Complexes: C-H Activations and Hydrogen Atom Transfer Driven by Effective Nuclear Charge.

Journal of the American Chemical Society·2026
Same author

Combining coordination and chelation moieties to engineer a new linker for lanthanide coordination chemistry.

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

Probing <i>f</i>-Block Covalency at the Limits of Hard-Metal/Soft-Ligand Interactions through Chalcogenoether Complexes.

Journal of the American Chemical Society·2025
Same author

Discovery of the Origin of the Enormous ^{88}Zr Neutron-Capture Cross Section and Quantifying Its Impact on Applications.

Physical review letters·2025

Related Experiment Video

Updated: Apr 16, 2026

Author Spotlight: Magnetometric Characterization of Intermediates in the Solid-State Electrochemistry of Redox-Active Metal-Organic Frameworks
06:53

Author Spotlight: Magnetometric Characterization of Intermediates in the Solid-State Electrochemistry of Redox-Active Metal-Organic Frameworks

Published on: June 9, 2023

2.9K

Quantifying Outer- and Inner-Coordination Sphere Effects Using Uranium Redox Chemistry in Molten Salt Solutions.

Travis Marshall-Roth1, Molly M MacInnes1, Aldo M Jordan1

  • 1Los Alamos National Laboratory (LANL), P.O. Box 1663, Los Alamos, New Mexico 87545, United States.

Journal of the American Chemical Society
|April 14, 2026
PubMed
Summary

Understanding chemical forces is key. This study quantifies intramolecular vs. intermolecular forces by analyzing uranium redox reactivity in molten salts, revealing cation and anion influences on uranium oxidation states.

More Related Videos

Molten-Salt Synthesis of Complex Metal Oxide Nanoparticles
08:43

Molten-Salt Synthesis of Complex Metal Oxide Nanoparticles

Published on: October 27, 2018

19.1K
U2O5 Film Preparation via UO2 Deposition by Direct Current Sputtering and Successive Oxidation and Reduction with Atomic Oxygen and Atomic Hydrogen
12:05

U2O5 Film Preparation via UO2 Deposition by Direct Current Sputtering and Successive Oxidation and Reduction with Atomic Oxygen and Atomic Hydrogen

Published on: February 21, 2019

8.6K

Related Experiment Videos

Last Updated: Apr 16, 2026

Author Spotlight: Magnetometric Characterization of Intermediates in the Solid-State Electrochemistry of Redox-Active Metal-Organic Frameworks
06:53

Author Spotlight: Magnetometric Characterization of Intermediates in the Solid-State Electrochemistry of Redox-Active Metal-Organic Frameworks

Published on: June 9, 2023

2.9K
Molten-Salt Synthesis of Complex Metal Oxide Nanoparticles
08:43

Molten-Salt Synthesis of Complex Metal Oxide Nanoparticles

Published on: October 27, 2018

19.1K
U2O5 Film Preparation via UO2 Deposition by Direct Current Sputtering and Successive Oxidation and Reduction with Atomic Oxygen and Atomic Hydrogen
12:05

U2O5 Film Preparation via UO2 Deposition by Direct Current Sputtering and Successive Oxidation and Reduction with Atomic Oxygen and Atomic Hydrogen

Published on: February 21, 2019

8.6K

Area of Science:

  • Chemistry
  • Electrochemistry
  • Materials Science

Background:

  • Quantifying intramolecular and intermolecular forces is a fundamental challenge in chemistry.
  • Understanding these forces is crucial for predicting chemical behavior and reactivity.

Purpose of the Study:

  • To develop a method for evaluating the relative impact of inner-coordination sphere bonding versus outer-coordination sphere cation effects.
  • To quantify the influence of cations and anions on uranium redox reactivity in molten salts.

Main Methods:

  • Comparative analysis of uranium redox reactivity in various molten salts.
  • Studying the effect of changing outer-coordination sphere cations (Li+, Na+, K+) and inner-coordination sphere anions (Cl-, Br-, I-).
  • Correlating redox potentials with electrostatic interactions using Coulomb's Law.

Main Results:

  • Both outer-coordination sphere cations (M1+) and inner-coordination sphere anions (X1-) significantly affect uranium redox reactivity.
  • More polarizing cations and larger anions favor lower uranium oxidation states.
  • Specific potential shifts were observed for U(IV/III) and U(0) metal deposition potentials with changes in cations and anions.

Conclusions:

  • A model based on Coulomb's Law effectively correlates redox potentials with electrostatic interactions in molten salts.
  • This approach provides a facile method for predicting redox chemistry in molten salt environments.
  • The study highlights the importance of both inner- and outer-sphere interactions in determining metal ion redox behavior.