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

Olefin Metathesis Polymerization: Ring-Opening Metathesis Polymerization (ROMP)01:16

Olefin Metathesis Polymerization: Ring-Opening Metathesis Polymerization (ROMP)

2.8K
Ring-opening metathesis polymerization or ROMP involves strained cycloalkenes as starting materials. The mechanism of ROMP proceeds by reacting cycloalkene with Grubbs catalyst to give metallacyclobutane intermediate which undergoes a ring-opening reaction to form new carbene. The new carbene reacts with another molecule of cycloalkene. Repetition of these steps leads to the formation of an unsaturated open-chain polymer product. All these steps are reversible, however, relieving the ring...
2.8K
Olefin Metathesis Polymerization: Overview01:13

Olefin Metathesis Polymerization: Overview

2.3K
Recently, the development of olefin metathesis polymerization advanced the field of polymer synthesis. Simply put, the reorganization of substituents on their double bonds between two olefins in the presence of a catalyst is known as the olefin metathesis reaction. The use of metathesis reaction for polymer synthesis is called olefin metathesis polymerization.
Ruthenium-based Grubbs catalyst is the most commonly used catalyst for olefin metathesis polymerization. Grubbs catalyst consists...
2.3K
Properties of Organometallic Compounds01:23

Properties of Organometallic Compounds

1.2K
Organometallic compounds are compounds that contain a carbon–metal bond. Carbon belongs to an organyl group like alkyl, aryl, allyl, or benzyl groups. The metal can be from Group I or Group II of the periodic table, a transition metal, or a semimetal.
1.2K
π Molecular Orbitals of 1,3-Butadiene01:24

π Molecular Orbitals of 1,3-Butadiene

10.4K
Conjugated dienes have lower heats of hydrogenation than cumulated and isolated dienes, making them more stable. The enhanced stabilization of conjugated systems can be understood from their π molecular orbitals.
The simplest conjugated diene is 1,3-butadiene: a four-carbon system where each carbon is sp2-hybridized and has an unhybridized p orbital that contains an unpaired electron. According to molecular orbital theory, atomic orbitals combine to form molecular orbitals such that the number...
10.4K
Cycloaddition Reactions: MO Requirements for Thermal Activation01:16

Cycloaddition Reactions: MO Requirements for Thermal Activation

3.8K
Thermal cycloadditions are reactions where the source of activation energy needed to initiate the reaction is provided in the form of heat. A typical example of a thermally-allowed cycloaddition is the Diels–Alder reaction, which is a [4 + 2] cycloaddition. In contrast, a [2 + 2] cycloaddition is thermally forbidden.
3.8K
Cycloaddition Reactions: MO Requirements for Photochemical Activation01:12

Cycloaddition Reactions: MO Requirements for Photochemical Activation

2.3K
Some cycloaddition reactions are activated by heat, while others are initiated by light. For example, a [2 + 2] cycloaddition between two ethylene molecules occurs only in the presence of light. It is photochemically allowed but thermally forbidden.
2.3K

You might also read

Related Articles

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

Sort by
Same author

Immediate implant placement in thin buccal bone phenotype: CBCT-based retrospective comparison between DBBM and H-PRF bone block.

Oral surgery, oral medicine, oral pathology and oral radiology·2026
Same author

Integrated volatile and non-volatile metabolomics reveal aroma chemotypes in Capsicum cultivars.

Food chemistry: X·2026
Same author

A fibroblast activation protein degrader enhances cisplatin sensitivity in non‑small cell lung cancer.

Oncology reports·2026
Same author

Impact of Prescription Drug Monitoring Program Implementation on Rates and Characteristics of People Seeing Multiple Prescribers in Primary Care: A Controlled Interrupted Time-Series Analysis.

The Medical journal of Australia·2026
Same author

Chikusetsu saponin IVa mitigates septic cardiac injury by targeting DRP1 to suppress mitochondrial damage and NLRP3 inflammasome activation.

Life sciences·2026
Same author

A pilot study of the effect of two deproteinized bovine bone minerals in lateral window sinus floor elevation.

BMC oral health·2026

Related Experiment Video

Updated: Oct 27, 2025

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

Pb2+-Containing Metal-Organic Rotaxane Frameworks (MORFs).

Ting Xia1, Zhi-Yong Yu1, Han-Yuan Gong2

  • 1Department of Chemistry, Renmin University of China, No. 59, Zhongguan Street, Beijing 100872, China.

Molecules (Basel, Switzerland)
|July 24, 2021
PubMed
Summary

New metal-organic rotaxane frameworks (MORFs) were synthesized using lead(II) ions and a large macrocycle. These MORFs exhibit unique structural features, including an unusual weak lead-lead interaction in one of the compounds.

Keywords:
MORFPb2+Texas-sized molecular boxmetal-organic rotaxane frameworks

More Related Videos

Synthesis and Characterization of Functionalized Metal-organic Frameworks
11:27

Synthesis and Characterization of Functionalized Metal-organic Frameworks

Published on: September 5, 2014

48.5K
HKUST-1 as a Heterogeneous Catalyst for the Synthesis of Vanillin
11:15

HKUST-1 as a Heterogeneous Catalyst for the Synthesis of Vanillin

Published on: July 23, 2016

10.4K

Related Experiment Videos

Last Updated: Oct 27, 2025

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
Synthesis and Characterization of Functionalized Metal-organic Frameworks
11:27

Synthesis and Characterization of Functionalized Metal-organic Frameworks

Published on: September 5, 2014

48.5K
HKUST-1 as a Heterogeneous Catalyst for the Synthesis of Vanillin
11:15

HKUST-1 as a Heterogeneous Catalyst for the Synthesis of Vanillin

Published on: July 23, 2016

10.4K

Area of Science:

  • Materials Science
  • Supramolecular Chemistry
  • Coordination Chemistry

Background:

  • Mechanically Interlocked Molecules (MIMs) offer unique properties for advanced materials.
  • Metal-Organic Rotaxane Frameworks (MORFs) combine MIMs with porous framework structures.
  • MORFs are of significant interest due to their potential applications.

Purpose of the Study:

  • To construct novel MORF structures using lead(II) ions.
  • To explore the structural characteristics of these new MORFs.
  • To investigate the role of specific organic linkers in MORF formation.

Main Methods:

  • One-pot three-layer diffusion synthesis protocol.
  • Utilized lead(II) ions (Pb2+).
  • Employed a tetraimidazolium macrocycle (Texas-sized molecular box; 1) and aromatic dicarboxylates (PTADAs; 2 or 3).

Main Results:

  • Successfully synthesized two MORF structures: MORF-Pb-1 and MORF-Pb-2.
  • MORF-Pb-1 exhibited an unusual weak lead-lead (Pb…Pb) interaction at a distance of 3.656 Å.
  • The choice of dicarboxylate linker influenced the resulting MORF structure.

Conclusions:

  • Demonstrated the feasibility of constructing Pb2+-based MORFs.
  • Highlighted the presence of novel weak Pb…Pb interactions in MORF-Pb-1.
  • These findings contribute to the understanding of MORF assembly and properties.