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...
Structural Isomerism02:34

Structural Isomerism

Isomerism in Complexes
Isomers are different chemical species that have the same chemical formula. Structural isomerism of coordination compounds can be divided into two subcategories, the linkage isomers and coordination-sphere isomers.
Linkage isomers occur when the coordination compound contains a ligand that can bind to the transition metal center through two different atoms. For example, the CN− ligand can bind through the carbon atom or through the nitrogen atom. Similarly, SCN− can be...
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.
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...
Coordination Compounds and Nomenclature02:54

Coordination Compounds and Nomenclature

In most main group element compounds, the valence electrons of the isolated atoms combine to form chemical bonds that satisfy the octet rule. For instance, the four valence electrons of carbon overlap with electrons from four hydrogen atoms to form CH4. The one valence electron leaves sodium and adds to the seven valence electrons of chlorine to form the ionic formula unit NaCl (Figure 1a). Transition metals do not normally bond in this fashion. They primarily form coordinate covalent bonds, a...
Stereoisomerism02:52

Stereoisomerism

Isomerism in Complexes
Isomers are different chemical species that have the same chemical formula.
Transition metal complexes often exist as geometric isomers, in which the same atoms are connected through the same types of bonds but with differences in their orientation in space. Coordination complexes with two different ligands in the cis and trans positions from a ligand of interest form isomers. For example, the octahedral [Co(NH3)4Cl2]+ ion has two isomers (Figure 1) In the cis...

You might also read

Related Articles

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

Sort by
Same author

Remodeling TME via feedback-driven photothermal-ferroptosis-immune cascade.

Biomaterials·2026
Same author

Compensatory characteristics and influencing factors of the sagittal curvature of the maxillary arch based on three-dimensional fusion imaging.

European journal of orthodontics·2026
Same author

Platinum(II) Complexes with Carbene Pincer Chelates for Blue Hyperphosphorescent Organic Light-Emitting Diodes.

Inorganic chemistry·2026
Same author

Ultra-broadband and compact TM-pass polarizer based on silicon nitride-assisted lithium niobate on insulator platform.

Optics express·2026
Same author

Integrating deep learning techniques for analysis of chin morphology among Han Chinese individuals using a large cone-beam computed tomography dataset.

Clinical oral investigations·2026
Same author

Ligand Design with [CNSbF<sub>5</sub>]<sup>-</sup>: An Ultrastrong π-Accepting Ancillary Ligand for Blue-Shifted MLCT Emission in Re(I) Complexes.

Inorganic chemistry·2026

Related Experiment Video

Updated: Jun 5, 2026

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

Binuclear (salen)osmium phosphinidine and phosphiniminato complexes.

Gui Chen1, Wai-Lun Man, Shek-Man Yiu

  • 1Institute of Molecular Functional Materials and Department of Biology and Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon Tong, Hong Kong, PRC.

Dalton Transactions (Cambridge, England : 2003)
|January 27, 2011
PubMed
Summary

This study details the synthesis of novel binuclear osmium complexes, including phosphinidine and phosphiniminato derivatives. Researchers explored various strategies to create these unique osmium compounds for potential applications.

More Related Videos

Amide Coupling Reaction for the Synthesis of Bispyridine-based Ligands and Their Complexation to Platinum as Dinuclear Anticancer Agents
07:20

Amide Coupling Reaction for the Synthesis of Bispyridine-based Ligands and Their Complexation to Platinum as Dinuclear Anticancer Agents

Published on: May 28, 2014

Preparation and Reactivity of a Triphosphenium Bromide Salt: A Convenient and Stable Source of Phosphorus(I)
08:46

Preparation and Reactivity of a Triphosphenium Bromide Salt: A Convenient and Stable Source of Phosphorus(I)

Published on: November 22, 2016

Related Experiment Videos

Last Updated: Jun 5, 2026

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

Amide Coupling Reaction for the Synthesis of Bispyridine-based Ligands and Their Complexation to Platinum as Dinuclear Anticancer Agents
07:20

Amide Coupling Reaction for the Synthesis of Bispyridine-based Ligands and Their Complexation to Platinum as Dinuclear Anticancer Agents

Published on: May 28, 2014

Preparation and Reactivity of a Triphosphenium Bromide Salt: A Convenient and Stable Source of Phosphorus(I)
08:46

Preparation and Reactivity of a Triphosphenium Bromide Salt: A Convenient and Stable Source of Phosphorus(I)

Published on: November 22, 2016

Area of Science:

  • Organometallic Chemistry
  • Coordination Chemistry
  • Inorganic Synthesis

Background:

  • Osmium complexes with salen ligands are important in catalysis and materials science.
  • Phosphinidine and phosphiniminato ligands offer unique electronic and steric properties.
  • The synthesis of multinuclear osmium complexes presents challenges and opportunities for novel reactivity.

Purpose of the Study:

  • To describe the preparation of various binuclear (salen)osmium phosphinidine and phosphiniminato complexes.
  • To explore different synthetic strategies for accessing these novel osmium compounds.
  • To characterize the structures of the synthesized complexes using X-ray crystallography.

Main Methods:

  • Treatment of Os(VI) precursors with triphenylphosphine (PPh3) under varying conditions (solvents, additives like pyrazine or water).
  • Reaction of Os(VI) precursors with diphosphine ligands (e.g., PPh2-C≡C-PPh2, PPh2-(CH2)3-PPh2) and a ferrocenyl diphosphine (PPh2FcPPh2).
  • Structure determination of key complexes via X-ray crystallography.

Main Results:

  • Synthesis of osmium(IV) phosphinidine complexes from Os(VI) precursors and PPh3.
  • Generation of osmium(III) phosphinidine species in the presence of pyrazine.
  • Formation of μ-oxo and μ-pyrazine bridged binuclear osmium complexes.
  • Preparation of novel binuclear osmium(IV) complexes using diphosphine ligands.
  • Synthesis of a trimetallic complex involving a ferrocenyl diphosphine ligand.
  • Structural confirmation of several synthesized complexes through X-ray crystallography.

Conclusions:

  • Various synthetic routes allow for the controlled preparation of diverse binuclear and trimetallic osmium complexes.
  • The choice of reaction conditions and ligands significantly influences the nuclearity and oxidation state of the resulting osmium species.
  • The characterized complexes represent a new class of osmium compounds with potential for further investigation in catalysis and coordination chemistry.