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

Valence Bond Theory02:42

Valence Bond Theory

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...
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...
Colors and Magnetism03:02

Colors and Magnetism

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 eye.
Crystal Field Theory - Octahedral Complexes02:58

Crystal Field Theory - Octahedral Complexes

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...
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...

You might also read

Related Articles

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

Sort by
Same author

Relationship between early use of tocilizumab during chimeric antigen receptor T-cell therapy for multiple myeloma and cardiovascular risk and progression-free survival.

European heart journal open·2026
Same author

The evolving role of regulatory T cells in pulmonary diseases: immunomodulatory mechanisms and translational directions revealed by bibliometric analysis.

Frontiers in medicine·2026
Same author

Vacancy-Engineered Interfacial Electrons Modulation in NiCo Hydroxide/MoS<sub>2</sub> Heterostructures for Boosted OER Electrocatalysis.

Small (Weinheim an der Bergstrasse, Germany)·2026
Same author

p-p Orbital Coupling-Mediated Unoccupied State Population in Te-Doped NaNbO<sub>3</sub> Enables Optimized Oxygen Evolution Pathways for Efficient Overall Water Splitting.

Small (Weinheim an der Bergstrasse, Germany)·2026
Same author

Comparison of the Percutaneous Kyphoplasty "Trinity" Anchoring Technique versus Conventional Percutaneous Kyphoplasty for Kummell Disease: A Retrospective Observational Study.

World neurosurgery·2025
Same author

Severe Diarrhea Outbreaks in Newborn Piglets in China Associated With Porcine Rotavirus B.

Transboundary and emerging diseases·2025

Related Experiment Video

Updated: May 31, 2026

Thermochemical Studies of Ni(II) and Zn(II) Ternary Complexes Using Ion Mobility-Mass Spectrometry
16:11

Thermochemical Studies of Ni(II) and Zn(II) Ternary Complexes Using Ion Mobility-Mass Spectrometry

Published on: June 8, 2022

A trinuclear Fe-Fe-Ni complex formed by ligand reshuffling.

Ariel Peleg, Wenfeng Lo, Jianfeng Jiang

    Acta Crystallographica. Section E, Structure Reports Online
    |July 15, 2011
    PubMed
    Summary

    This study presents a novel diiron-nickel complex, the second example of M(μ-SR)2Ni(0)(CO)2 coordination. The complex features unique five-coordinate iron(II) and four-coordinate nickel(0) centers, expanding coordination chemistry knowledge.

    More Related Videos

    Line Shape Analysis of Dynamic NMR Spectra for Characterizing Coordination Sphere Rearrangements at a Chiral Rhenium Polyhydride Complex
    10:52

    Line Shape Analysis of Dynamic NMR Spectra for Characterizing Coordination Sphere Rearrangements at a Chiral Rhenium Polyhydride Complex

    Published on: July 27, 2022

    The Synthesis, Characterization and Reactivity of a Series of Ruthenium N-triphosPh Complexes
    10:51

    The Synthesis, Characterization and Reactivity of a Series of Ruthenium N-triphosPh Complexes

    Published on: April 10, 2015

    Related Experiment Videos

    Last Updated: May 31, 2026

    Thermochemical Studies of Ni(II) and Zn(II) Ternary Complexes Using Ion Mobility-Mass Spectrometry
    16:11

    Thermochemical Studies of Ni(II) and Zn(II) Ternary Complexes Using Ion Mobility-Mass Spectrometry

    Published on: June 8, 2022

    Line Shape Analysis of Dynamic NMR Spectra for Characterizing Coordination Sphere Rearrangements at a Chiral Rhenium Polyhydride Complex
    10:52

    Line Shape Analysis of Dynamic NMR Spectra for Characterizing Coordination Sphere Rearrangements at a Chiral Rhenium Polyhydride Complex

    Published on: July 27, 2022

    The Synthesis, Characterization and Reactivity of a Series of Ruthenium N-triphosPh Complexes
    10:51

    The Synthesis, Characterization and Reactivity of a Series of Ruthenium N-triphosPh Complexes

    Published on: April 10, 2015

    Area of Science:

    • Inorganic Chemistry
    • Coordination Chemistry
    • Organometallic Chemistry

    Background:

    • The M(μ-SR)2Ni(0)(CO)2 coordination motif is rare, with only one prior example.
    • Diiron-nickel complexes offer unique electronic and structural properties.

    Purpose of the Study:

    • To synthesize and characterize a novel diiron-nickel complex.
    • To investigate the coordination environment and bonding in this unique M(μ-SR)2Ni(0)(CO)2 system.

    Main Methods:

    • Single-crystal X-ray diffraction was employed to determine the molecular structure.
    • Detailed crystallographic analysis was performed to elucidate coordination geometries and bond distances.

    Main Results:

    • The title complex, dicarbonyl-3κ(2)C-(μ(3)-3,6-dimethyl-3,6-diaza-octane-1,8-dithiol-ato-1:2:3κ(7)S:S,N,N',S':S,S')(μ(2)-3,6-di-methyl-3,6-diaza-octane-1,8-dithiol-ato-1:2κ(5)S,N,N',S':S)-1,2-diiron(II)-3-nickel(0) [Fe(2)Ni(C(8)H(18)N(2)S(2))(2)(CO)(2)], was successfully synthesized.
    • Both Fe(II) ions exhibit five-coordinate distorted trigonal-bipyramidal geometries.
    • The Ni(0) atom displays a four-coordinate distorted tetrahedral geometry.
    • Fe⋯Fe and Ni⋯Fe distances were determined to be 3.0945(3) Å and 2.8505(3) Å, respectively.

    Conclusions:

    • This work provides the second example of the M(μ-SR)2Ni(0)(CO)2 coordination motif.
    • The structural characterization reveals distinct coordination environments for the iron and nickel centers.
    • The findings contribute to the understanding of polynuclear metal complexes with sulfur and nitrogen ligands.