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

Crystal Field Theory - Octahedral Complexes02:58

Crystal Field Theory - Octahedral Complexes

28.5K
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...
28.5K
Valence Bond Theory02:42

Valence Bond Theory

9.9K
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...
9.9K
Metal-Ligand Bonds02:51

Metal-Ligand Bonds

22.3K
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...
22.3K
Bonding in Metals02:32

Bonding in Metals

49.2K
Metallic bonds are formed between two metal atoms. A simplified model to describe metallic bonding has been developed by Paul Drüde called the “Electron Sea Model”. 
49.2K
Colors and Magnetism03:02

Colors and Magnetism

12.6K
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...
12.6K
Crystal Field Theory - Tetrahedral and Square Planar Complexes02:46

Crystal Field Theory - Tetrahedral and Square Planar Complexes

45.4K
Tetrahedral Complexes
Crystal field theory (CFT) is applicable to molecules in geometries other than octahedral. In octahedral complexes, the lobes of the dx2−y2 and dz2 orbitals point directly at the ligands. For tetrahedral complexes, the d orbitals remain in place, but with only four ligands located between the axes. None of the orbitals points directly at the tetrahedral ligands. However, the dx2−y2 and dz2 orbitals (along the Cartesian axes) overlap with the ligands less than the dxy,...
45.4K

You might also read

Related Articles

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

Sort by
Same author

Ammonia pressure controls colloidal metal nitride synthesis in molten salts.

Nature·2026
Same author

The Role of Defect Geometry in Localized Emission from Monolayer Tungsten Dichalcogenides.

ACS nano·2026
Same author

Nonadiabatic Dynamics of Photoinduced Hydrogen Dissociation on Plasmonic Au Nanoparticles: How Hot Carrier Excitation Leads to Bond Breaking.

ACS nano·2026
Same author

Infrared Spectroelectrochemical Insights into Rhenium-Based Supramolecular Assemblies for Electron Storage and Transfer.

Inorganic chemistry·2026
Same author

2D Semiconductor Nanosheets Supported on Colloidal Quantum Cubes.

ACS nano·2026
Same author

Strong effect of the nonpolar solvent molecular structure on CdSe nanoplatelet stacking.

Nanoscale·2026

Related Experiment Video

Updated: Oct 21, 2025

A Technical Guide for Performing Spectroscopic Measurements on Metal-Organic Frameworks
10:13

A Technical Guide for Performing Spectroscopic Measurements on Metal-Organic Frameworks

Published on: April 28, 2023

2.7K

Strong Coupling Between Plasmons and Molecular Excitons in Metal-Organic Frameworks.

Alexander D Sample, Jun Guan, Jingtian Hu

  • 1Center for Nanoscale Materials, Argonne National Laboratory, Argonne, Illinois 60439, United States.

Nano Letters
|September 7, 2021
PubMed
Summary

This study shows strong coupling between molecular emitters in metal-organic frameworks (MOFs) and nanoparticle (NP) lattices, creating a polariton. This hybrid system opens new possibilities for excitonic materials in polariton chemistry.

Keywords:
conformal coatingmetal−organic frameworkplasmonic nanoparticle arraysurface lattice resonanceultrafast spectroscopy

More Related Videos

Author Spotlight: Experimental Approaches for the Synthesis of Low-Valent Metal-Organic Frameworks from Multitopic Phosphine Linkers
07:14

Author Spotlight: Experimental Approaches for the Synthesis of Low-Valent Metal-Organic Frameworks from Multitopic Phosphine Linkers

Published on: May 12, 2023

3.3K
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

2.2K

Related Experiment Videos

Last Updated: Oct 21, 2025

A Technical Guide for Performing Spectroscopic Measurements on Metal-Organic Frameworks
10:13

A Technical Guide for Performing Spectroscopic Measurements on Metal-Organic Frameworks

Published on: April 28, 2023

2.7K
Author Spotlight: Experimental Approaches for the Synthesis of Low-Valent Metal-Organic Frameworks from Multitopic Phosphine Linkers
07:14

Author Spotlight: Experimental Approaches for the Synthesis of Low-Valent Metal-Organic Frameworks from Multitopic Phosphine Linkers

Published on: May 12, 2023

3.3K
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

2.2K

Area of Science:

  • Materials Science
  • Chemistry
  • Optics

Background:

  • Strong coupling between light and matter is crucial for advanced optical devices.
  • Metal-organic frameworks (MOFs) offer ordered structures for hosting molecular emitters.
  • Plasmonic nanoparticle (NP) lattices provide enhanced light-matter interactions.

Purpose of the Study:

  • To investigate strong coupling in a hybrid system of MOFs and plasmonic NPs.
  • To explore the formation and properties of polaritons in this system.
  • To demonstrate the potential of MOFs as excitonic materials for polariton chemistry.

Main Methods:

  • Fabrication of MOF films with porphyrin-derived ligands on silver NP arrays.
  • Angle-resolved optical measurements to study polariton formation.
  • Transient absorption spectroscopy to analyze polariton decay dynamics.
  • Solvent infiltration to tune coupling strength via refractive index changes.

Main Results:

  • Observed formation of a lower-energy polariton in the MOF-NP lattice.
  • Calculated a Rabi splitting of 110 meV, indicating strong coupling.
  • Demonstrated systematic control of coupling strength by altering solvent refractive index.
  • Identified distinct fast and slow decay components of the lower polariton due to energy transfer.

Conclusions:

  • MOFs can act as effective excitonic materials for creating polaritons.
  • The MOF-NP hybrid system enables tunable light-matter interactions.
  • This work paves the way for novel applications in polariton chemistry and optics.