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

[3,3] Sigmatropic Rearrangement of 1,5-Dienes: Cope Rearrangement01:21

[3,3] Sigmatropic Rearrangement of 1,5-Dienes: Cope Rearrangement

3.2K
The Cope rearrangement is classified as a [3,3] sigmatropic shift in 1,5-dienes, leading to a more stable, isomeric 1,5-diene. The reaction involves a concerted movement of six electrons, four from two π bonds and two from a σ bond, via an energetically favorable chair-like transition state.
3.2K
Chirality at Nitrogen, Phosphorus, and Sulfur02:30

Chirality at Nitrogen, Phosphorus, and Sulfur

6.7K
Chirality is most prevalent in carbon-based tetrahedral compounds, but this important facet of molecular symmetry extends to sp3-hybridized nitrogen, phosphorus and sulfur centers, including trivalent molecules with lone pairs. Here, the lone pair behaves as a functional group in addition to the other three substituents to form an analogous tetrahedral center that can be chiral.
A consequence of chirality is the need for enantiomeric resolution. While this is theoretically possible for all...
6.7K
Characteristics and Nomenclature of Copolymers01:24

Characteristics and Nomenclature of Copolymers

3.1K
Copolymers are the products obtained from the polymerization of multiple monomer species. So, in a polymer chain itself, there can be multiple repeating units that come from different monomers. The process of synthesizing a polymer from different monomer species is called copolymerization. When two monomers are involved, the polymer is known as a bipolymer. Polymers with three and four monomers are termed terpolymers and quaterpolymers, respectively. Figure 1 depicts the copolymerization of...
3.1K
Naming Enantiomers02:21

Naming Enantiomers

25.0K
The naming of enantiomers employs the Cahn–Ingold–Prelog rules that involve assigning priorities to different substituent groups at a chiral center. Each enantiomer, being a distinct molecule, is assigned a unique name by the Cahn–Ingold–Prelog (CIP) rules, also called the R–S system. The prefix R- or S- attached to the chiral centers in an enantiomer is dependent on the spatial arrangement of the four substituents on the chiral center. The R–S system essentially comprises three...
25.0K
Prochirality02:05

Prochirality

4.7K
The concept of prochirality leads to the nomenclature of the individual faces of a molecule and plays a crucial role in the enantioselective reaction. It is a concept where two or more achiral molecules react to produce chiral products. A typical process is the reaction of an achiral ketone to generate a chiral alcohol. Here, the achiral reactant reacts with an achiral reducing agent, sodium borohydride, to generate an equimolar mixture of the chiral enantiomers of the product. For example, an...
4.7K
Polymer Classification: Stereospecificity01:26

Polymer Classification: Stereospecificity

3.1K
Polymerization generates chiral centers along the entire backbone of a polymer chain. Accordingly, the stereochemistry of the substituent group has a significant effect on polymer properties. Polymers formed from monosubstituted alkene monomers feature chiral carbons at every alternate position in the polymer backbone. Relative to the predominant orientation of substituents at the adjacent chiral carbons, the polymer can exist in three different configurations: isotactic, syndiotactic, and...
3.1K

You might also read

Related Articles

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

Sort by
Same author

Photo-Triggered Disassembly of Phosphorylcholine-Based pH-Responsive Block Copolymer Micelles via Encapsulated Photoacid Generators.

Langmuir : the ACS journal of surfaces and colloids·2026
Same author

High Drug Encapsulation Capacity in Cyclodextrin-Based Nanoparticles: Characterization and <i>In Vivo</i> Antitumor Efficacy in Tumor-Bearing Mice.

ACS bio & med chem Au·2026
Same author

pH-Responsive Polymer Nanoparticles Containing Pendant Carboxy and Sulfonate Groups.

Langmuir : the ACS journal of surfaces and colloids·2026
Same author

Innovative γ-Oryzanol and KC2 Based Lipid Nanoparticles: OryKL Platform Provides Safe and Efficient In Vivo mRNA Delivery.

Small (Weinheim an der Bergstrasse, Germany)·2026
Same author

Aldehyde-Functionalized Cellulose Nanofiber Hydrogels for pH-Sensitive Drug Delivery via Dynamic Imine Bonding.

ACS omega·2026
Same author

Comprehensive Mapping of Compositional Dynamics in the Formose Reaction Network.

Angewandte Chemie (International ed. in English)·2025

Related Experiment Video

Updated: Dec 21, 2025

Self-assembling Morphologies Obtained from Helical Polycarbodiimide Copolymers and Their Triazole Derivatives
09:22

Self-assembling Morphologies Obtained from Helical Polycarbodiimide Copolymers and Their Triazole Derivatives

Published on: February 7, 2017

8.1K

Structural Polymorphism of Resorcinarene Assemblies.

Shota Fujii1, Rika Miyake1, Liliana de Campo2

  • 1Department of Chemistry and Biochemistry, University of Kitakyushu, 1-1 Hibikino, Kitakyushu, Fukuoka 808-0135, Japan.

Langmuir : the ACS Journal of Surfaces and Colloids
|May 12, 2020
PubMed
Summary

Resorcinarene molecules form different structures based on the solvent. A cubic octamer forms in toluene, unlike the previously known octahedral hexamer in chloroform, revealing structural polymorphism.

More Related Videos

Synthesis of Monodisperse Cylindrical Nanoparticles via Crystallization-driven Self-assembly of Biodegradable Block Copolymers
11:42

Synthesis of Monodisperse Cylindrical Nanoparticles via Crystallization-driven Self-assembly of Biodegradable Block Copolymers

Published on: June 20, 2019

8.2K
Designed for Molecular Recycling: A Lignin-Derived Semi-aromatic Biobased Polymer
10:22

Designed for Molecular Recycling: A Lignin-Derived Semi-aromatic Biobased Polymer

Published on: November 30, 2020

3.8K

Related Experiment Videos

Last Updated: Dec 21, 2025

Self-assembling Morphologies Obtained from Helical Polycarbodiimide Copolymers and Their Triazole Derivatives
09:22

Self-assembling Morphologies Obtained from Helical Polycarbodiimide Copolymers and Their Triazole Derivatives

Published on: February 7, 2017

8.1K
Synthesis of Monodisperse Cylindrical Nanoparticles via Crystallization-driven Self-assembly of Biodegradable Block Copolymers
11:42

Synthesis of Monodisperse Cylindrical Nanoparticles via Crystallization-driven Self-assembly of Biodegradable Block Copolymers

Published on: June 20, 2019

8.2K
Designed for Molecular Recycling: A Lignin-Derived Semi-aromatic Biobased Polymer
10:22

Designed for Molecular Recycling: A Lignin-Derived Semi-aromatic Biobased Polymer

Published on: November 30, 2020

3.8K

Area of Science:

  • Supramolecular Chemistry
  • Materials Science
  • Physical Chemistry

Background:

  • Resorcinarenes were previously believed to exclusively form hexameric capsule-like structures, as determined by X-ray crystallography in 1997.
  • This established structure influenced the understanding of resorcinarene function.
  • Recent findings suggest that the hexamer might be just one of several possible structural arrangements (polymorphs).

Purpose of the Study:

  • To investigate the solvent dependence of the aggregation number of C-undecylresorcinarene.
  • To characterize the structural changes of resorcinarenes in different solvents, specifically water-saturated toluene and chloroform.

Main Methods:

  • Small-angle neutron scattering (SANS)
  • Small-angle X-ray scattering (SAXS)
  • Analytical ultracentrifugation (AUC)

Main Results:

  • In water-saturated toluene, C-undecylresorcinarene forms an octameric structure with units arranged at the vertices of a cube.
  • In chloroform, the previously reported hexameric structure is confirmed, with units at the vertices of an octahedron.
  • The octahedral cavity in the chloroform-bound hexamer was found to pool solvent molecules.

Conclusions:

  • Resorcinarene aggregation is solvent-dependent, leading to distinct supramolecular structures.
  • The discovery of the cubic octamer highlights the polymorphic nature of resorcinarenes.
  • Understanding these structural variations is crucial for tailoring resorcinarene applications.