Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Thermal and Photochemical Electrocyclic Reactions: Overview

Thermal and Photochemical Electrocyclic Reactions: Overview

Electrocyclic reactions are reversible reactions. They involve an intramolecular cyclization or ring-opening of a conjugated polyene. Shown below are two examples of electrocyclic reactions. In the first reaction, the formation of the cyclic product is favored. In contrast, in the second reaction, ring-opening is favored due to the high ring strain associated with cyclobutene formation.

You might also read

Related Articles

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

Sort by

Same author

Quantitative Photoswitching of Spin States in o-Fluoroazobenzene-Loaded Metal-Organic Frameworks.

Angewandte Chemie (International ed. in English)·2026

Same author

Chiral Dysprosium Single-Molecule Magnets Displaying Circular Polarized Luminescence and Magneto-Chiral Dichroism.

Angewandte Chemie (International ed. in English)·2026

Same author

Strongly axial monodentate carboxylate for dysprosium single-ion magnets.

Dalton transactions (Cambridge, England : 2003)·2026

Same author

Magnetic-dielectric switching with wide hysteresis in an Fe(II) spin-crossover compound.

Dalton transactions (Cambridge, England : 2003)·2025

Same author

On-Demand Vitrification of Multicomponent Lanthanide Complexes for Magnetism and Up-Conversion Emission.

Journal of the American Chemical Society·2025

Same author

Nontrivial Spin Dynamics Synergy in a Weakly Coupled Heteroanisotropic Dysprosium Chain-Based Array.

Journal of the American Chemical Society·2025

Search research articles

Related Experiment Video

Updated: Sep 10, 2025

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

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

Published on: April 28, 2023

NIR-II Photothermal Conversion in Spin Crossover Metal-organic Frameworks.

Guang Yang¹, Lu Yu¹, Si-Guo Wu¹

¹Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, School of Chemistry, IGCME, Guangdong Basic Research Center of Excellence for Functional Molecular Engineering, Sun Yat-Sen University, Guangzhou, 510275, P. R. China.

Chemistry (Weinheim an Der Bergstrasse, Germany)

|August 20, 2025

Summary

This summary is machine-generated.

Researchers developed novel multifunctional materials by integrating spin crossover (SCO) properties with near-infrared II (NIR-II) photothermal capabilities. These materials show promise for advanced smart applications, including efficient solar-driven water evaporation.

Keywords:

NIR‐II iron metal‐organic frameworks photothermal conversion spin crossover

More Related Videos

Synthesis and Characterization of Functionalized Metal-organic Frameworks

Synthesis and Characterization of Functionalized Metal-organic Frameworks

Published on: September 5, 2014

Author Spotlight: Characterizing Porous Materials for Aiding the Development of Robust Metal-Organic Frameworks with Adsorption Behavior

Author Spotlight: Characterizing Porous Materials for Aiding the Development of Robust Metal-Organic Frameworks with Adsorption Behavior

Published on: March 8, 2024

Related Experiment Videos

Last Updated: Sep 10, 2025

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

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

Published on: April 28, 2023

Synthesis and Characterization of Functionalized Metal-organic Frameworks

Synthesis and Characterization of Functionalized Metal-organic Frameworks

Published on: September 5, 2014

Author Spotlight: Characterizing Porous Materials for Aiding the Development of Robust Metal-Organic Frameworks with Adsorption Behavior

Author Spotlight: Characterizing Porous Materials for Aiding the Development of Robust Metal-Organic Frameworks with Adsorption Behavior

Published on: March 8, 2024

Area of Science:

Materials Science
Chemistry
Nanotechnology

Background:

Multifunctional materials with multiple physicochemical properties are crucial for advanced smart materials.
Research on near-infrared II (NIR-II) photothermal properties of spin crossover (SCO) materials is limited.

Purpose of the Study:

To synthesize and characterize novel inverse-Hofmann-type metal-organic frameworks with enhanced NIR-II photothermal conversion and SCO behavior.
To explore the potential of these materials in solar-driven water evaporation.

Main Methods:

Synthesis of an inverse-Hofmann-type cationic framework [Fe{Ag(CN)2}(TTF(py)4)]+ (1).
Generation of solvent-free derivatives (1@Azo-NH2 and 1@Pyr) incorporating free radicals via host-guest interactions.
Evaluation of NIR-II photothermal properties under 1064 nm laser irradiation and solar-driven water evaporation experiments.

Main Results:

The synthesized framework (1) exhibited hysteretic SCO behavior.
Derivatives 1@Azo-NH2 and 1@Pyr demonstrated outstanding NIR-II photothermal properties.
1@Pyr achieved a high solar-driven water evaporation rate of 0.9197 kg m-2 h-1 with 63.9% efficiency.

Conclusions:

This study presents the first demonstration of NIR-II photothermal conversion in inverse-Hofmann-type metal-organic frameworks incorporating free radicals.
Incorporating NIR absorption units into SCO systems is vital for developing intelligent multifunctional materials.
The findings offer new insights for designing advanced smart materials with dual functionalities.