Related Experiment Video
Updated: Aug 19, 2025

Synthesis and Characterization of Supramolecular Colloids
Published on: April 22, 2016
Enhanced Host-Guest Association and Fluorescence in Copolymers from Copper Salphen Complexes by Supramolecular
Paulina Hernández-Pacheco1, Gustavo A Zelada-Guillén1, Margarita Romero-Ávila1
1School of Chemistry, National Autonomous University of Mexico (UNAM), Circuito Escolar s/n, Ciudad Universitaria, Mexico City, 04510, Mexico.
Abstract:
Invited for this month's cover are Prof. Escárcega-Bobadilla and Prof. Zelada-Guillén, collaborators from the National Autonomous University of Mexico (UNAM). The cover picture shows the X-ray structure of a chartreuse fluorescent Salphen-Cu complex that upon copolymerization receives dielectric protection from the rest of the chain in solution. This enables cyan luminescence at higher intensity via anion-guest engulfment which renders dimmer-like turn-on emission. More information can be found in the Research Article by G. Zelada-Guillén, M. V. Escárcega-Bobadilla, and co-workers.
More Related Videos
10:10Spatiotemporally Controlled Nuclear Translocation of Guests in Living Cells Using Caged Molecular Glues as Photoactivatable Tags
Published on: January 17, 2019
15:27Internalization and Observation of Fluorescent Biomolecules in Living Microorganisms via Electroporation
Published on: February 8, 2015
Related Concept Videos
Complexation Equilibria: The Chelate Effect
Colors and Magnetism
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...
Extraction: Advanced Methods
Variables Affecting Phosphorescence and Fluorescence
Metal-Ligand Bonds
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...
Complexation Equilibria: Factors Influencing Stability of Complexes