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

14.2K
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...
14.2K
Crystal Field Theory - Octahedral Complexes02:58

Crystal Field Theory - Octahedral Complexes

31.0K
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...
31.0K
Protein Complex Assembly02:41

Protein Complex Assembly

16.9K
Proteins can form homomeric complexes with another unit of the same protein or heteromeric complexes with different types.  Most protein complexes self-assemble spontaneously via ordered pathways, while some proteins need assembly factors that guide their proper assembly. Despite the crowded intracellular environment, proteins usually interact with their correct partners and form functional complexes.
Many viruses self-assemble into a fully functional unit using the infected host cell to...
16.9K
Protein Complexes with Interchangeable Parts01:57

Protein Complexes with Interchangeable Parts

3.0K
Groups of proteins may form a complex where each protein in this complex has a different role in the overall execution of the complex’s function. Often some of the proteins in the complex can be replaced by a closely related variant to give a complex that contains many of the same components yet is functionally distinct.
The SCF ubiquitin ligase is a protein complex of five individual proteins. This complex attaches ubiquitin to other target proteins to mark them for degradation. In order...
3.0K
Complex Numbers01:29

Complex Numbers

344
The real number system cannot represent the square root of a negative number, which restricts solutions for certain equations, such as quadratics with negative discriminants. To address this, the complex number system was developed, introducing the imaginary unit i, where i = √(-1). This extension allows for the representation of all roots, including those involving negative radicands.A complex number is written in the form x + yi, where x and y are real numbers. Here, x represents the...
344
Formation of Complex Ions03:45

Formation of Complex Ions

26.3K
A type of Lewis acid-base chemistry involves the formation of a complex ion (or a coordination complex) comprising a central atom, typically a transition metal cation, surrounded by ions or molecules called ligands. These ligands can be neutral molecules like H2O or NH3, or ions such as CN− or OH−. Often, the ligands act as Lewis bases, donating a pair of electrons to the central atom. These types of Lewis acid-base reactions are examples of a broad subdiscipline called coordination...
26.3K

You might also read

Related Articles

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

Sort by
Same author

Differentiating effective salvage from ineffective delayed compensation in anterior circulation stroke: a dynamic quantitative collateral index.

Frontiers in medicine·2026
Same author

Symmetry Breaking at Locally Active Fe Site for Switchable CO<sub>2</sub> Photoreduction Over Isostructural Ultrathin MOLs.

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

Photoinduced Cross-Metal Charge Transfer over Dual-Atom Z‑Scheme Catalysts Governing Cooperative Urea Synthesis from CO<sub>2</sub> and N<sub>2</sub>.

JACS Au·2026
Same author

Decoupling Hydrogen Evolution From Continuous Irradiation via CO<sub>2</sub>-Mediated Proton-Coupled Electron Storage.

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

Nitrogen vacancies g-C<sub>3</sub>N<sub>4</sub>/BiOBr S-scheme heterojunction with Pd for efficient photocatalytic H<sub>2</sub>O<sub>2</sub>production.

Nanotechnology·2026
Same author

Engineering π···π-Stacking Molecular Nanosheets of Iron Complexes for Improving Photocatalytic CO<sub>2</sub> Reduction.

Inorganic chemistry·2026

Related Experiment Video

Updated: Feb 14, 2026

Ballistic Labeling of Pyramidal Neurons in Brain Slices and in Primary Cell Culture
09:40

Ballistic Labeling of Pyramidal Neurons in Brain Slices and in Primary Cell Culture

Published on: April 2, 2020

7.5K

Multifunctional luminescent magnetic cryocooler in a Gd5Mn2 pyramidal complex.

Wei Huang1, Shuaidan Huang, Ming Zhang

  • 1Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis & Green Manufacturing Collaborative Innovation Center, School of Petrochemical Engineering, Changzhou University, Changzhou, Jiangsu 213164, China. wudy@cczu.edu.cn.

Chemical Communications (Cambridge, England)
|February 17, 2018
PubMed
Summary

Researchers developed a novel luminescent molecule cooler using manganese and gadolinium. This material offers sensitive temperature sensing, reversible mechanoluminescence, and a magnetocaloric effect for advanced cooling and visualization applications.

More Related Videos

Preparation, Purification, and Characterization of Lanthanide Complexes for Use as Contrast Agents for Magnetic Resonance Imaging
13:21

Preparation, Purification, and Characterization of Lanthanide Complexes for Use as Contrast Agents for Magnetic Resonance Imaging

Published on: July 21, 2011

15.4K
Cerenkov Luminescence Imaging of Interscapular Brown Adipose Tissue
06:28

Cerenkov Luminescence Imaging of Interscapular Brown Adipose Tissue

Published on: October 7, 2014

13.8K

Related Experiment Videos

Last Updated: Feb 14, 2026

Ballistic Labeling of Pyramidal Neurons in Brain Slices and in Primary Cell Culture
09:40

Ballistic Labeling of Pyramidal Neurons in Brain Slices and in Primary Cell Culture

Published on: April 2, 2020

7.5K
Preparation, Purification, and Characterization of Lanthanide Complexes for Use as Contrast Agents for Magnetic Resonance Imaging
13:21

Preparation, Purification, and Characterization of Lanthanide Complexes for Use as Contrast Agents for Magnetic Resonance Imaging

Published on: July 21, 2011

15.4K
Cerenkov Luminescence Imaging of Interscapular Brown Adipose Tissue
06:28

Cerenkov Luminescence Imaging of Interscapular Brown Adipose Tissue

Published on: October 7, 2014

13.8K

Area of Science:

  • Materials Science
  • Chemistry
  • Physics

Background:

  • Magnetic cooling offers efficient refrigeration but lacks visualization tools for cryogens in extreme conditions.
  • Current methods for ultra-low temperature cooling often rely on expensive and rare materials like helium-3.

Purpose of the Study:

  • To develop a visualized luminescent molecule cooler for precise positioning and in situ measurements.
  • To explore the multifunctional applications of a novel 3d/4f coordination compound.

Main Methods:

  • Synthesis of a heptanuclear [GdIII5MnII2] pyramid complex, [Gd5Mn2(LOMe)2(OH)4(Ac)6(MeOH)10Cl2]Cl3·2MeOH (1).
  • Characterization of its photoluminescence (PL), mechanoluminescence (ML), and magnetocaloric effect (MCE).

Main Results:

  • The compound exhibits red-emissive Mn(ii) ion activation with a large Stokes shift (λem ∼ 690 nm).
  • Demonstrated sensitive temperature sensing and reversible mechanoluminescence properties.
  • Observed a significant magnetocaloric effect coupled with tunable emission.

Conclusions:

  • The novel luminescent molecule cooler provides a new approach for visualized cooling applications.
  • The material's multifunctional properties open opportunities in red-light sources, thermometers, and stress imaging.