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

Fischer Projections

Fischer Projections

Learning to draw Fischer projections of molecules and understanding their relevance plays a crucial role in the visual depiction of organic molecules. A Fischer projection is a two-dimensional projection on a planar surface to simplify the three-dimensional wedge–dash representation of molecules. This is especially helpful in the case of molecules with multiple chiral centers that can be difficult to draw. Here, all the bonds of interest are represented as horizontal or vertical lines. While...

You might also read

Related Articles

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

Sort by

Same author

Manifestation of Ground-State Baird Aromaticity in a Neutral Hexaazaphenanthrene Derivative with a Topologically Unanticipated Triplet Ground State.

Journal of the American Chemical Society·2026

Same author

Fused Rubrene Derivatives with Embedded Seven-Membered Rings: Curvature-Dependent Photophysical and Semiconductor Properties.

Journal of the American Chemical Society·2026

Same author

Observation of Photophysical Processes of a Heptacene Derivative: Monomeric Behavior in Homogeneous Solution and Singlet Fission in Thin Film.

Journal of the American Chemical Society·2026

Same author

Usage of Hounsffeld unit to differentiate idiopathic condylar resorption: a preliminary study.

Journal of oral & facial pain and headache·2026

Same author

A Rare Case of Anterior Stafne Bone Cavity in the Mandibular Region.

Cureus·2025

Same author

Safety profiles in elderly patients with DLBCL on first-line Pola-R-CHP: a claims database study in Japan.

Leukemia & lymphoma·2025

Search research articles

Related Experiment Video

Updated: Mar 8, 2026

Author Spotlight: Enhancing CryoEM Sample Preparation Using Graphene Monolayer on Microscopy Grids

Author Spotlight: Enhancing CryoEM Sample Preparation Using Graphene Monolayer on Microscopy Grids

Published on: November 10, 2023

Discrimination between Conglomerates and Pseudoracemates Using Surface Coverage Plots in 2D Self-Assemblies at the

Naoki Maeda¹, Takashi Hirose¹, Kenji Matsuda¹

¹Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto, 615-8510, Japan.

Angewandte Chemie (International Ed. in English)

|January 21, 2017

Summary

Photochromic diarylethenes exhibit distinct 2D molecular ordering behaviors. One forms separated enantiomers, while the other creates pseudoracemic crystals, revealing insights into chiral self-assembly.

Keywords:

phase diagrams scanning probe microscopy self-assembly spontaneous chiral resolution surface analysis

More Related Videos

Theoretical Calculation and Experimental Verification for Dislocation Reduction in Germanium Epitaxial Layers with Semicylindrical Voids on Silicon

Theoretical Calculation and Experimental Verification for Dislocation Reduction in Germanium Epitaxial Layers with Semicylindrical Voids on Silicon

Published on: July 17, 2020

Dendrimer-based Uneven Nanopatterns to Locally Control Surface Adhesiveness: A Method to Direct Chondrogenic Differentiation

Dendrimer-based Uneven Nanopatterns to Locally Control Surface Adhesiveness: A Method to Direct Chondrogenic Differentiation

Published on: January 20, 2018

Related Experiment Videos

Last Updated: Mar 8, 2026

Author Spotlight: Enhancing CryoEM Sample Preparation Using Graphene Monolayer on Microscopy Grids

Author Spotlight: Enhancing CryoEM Sample Preparation Using Graphene Monolayer on Microscopy Grids

Published on: November 10, 2023

Theoretical Calculation and Experimental Verification for Dislocation Reduction in Germanium Epitaxial Layers with Semicylindrical Voids on Silicon

Theoretical Calculation and Experimental Verification for Dislocation Reduction in Germanium Epitaxial Layers with Semicylindrical Voids on Silicon

Published on: July 17, 2020

Dendrimer-based Uneven Nanopatterns to Locally Control Surface Adhesiveness: A Method to Direct Chondrogenic Differentiation

Dendrimer-based Uneven Nanopatterns to Locally Control Surface Adhesiveness: A Method to Direct Chondrogenic Differentiation

Published on: January 20, 2018

Area of Science:

Supramolecular Chemistry
Materials Science
Surface Science

Background:

Photochromic diarylethenes are molecules that change color upon light exposure.
Understanding their two-dimensional (2D) molecular ordering is crucial for developing advanced materials.
Chirality, or 'handedness,' in molecules can significantly influence their self-assembly properties.

Purpose of the Study:

To investigate the 2D molecular ordering of two distinct photochromic diarylethenes.
To explore the impact of chirality on the self-assembly of diarylethene isomers.
To analyze enantiomer mixing in 2D crystalline structures.

Main Methods:

Utilized scanning tunneling microscopy (STM) to visualize molecular arrangements.
Performed experiments at the liquid-graphite interface to study 2D crystallization.
Varied enantiomeric ratios to observe effects on molecular ordering.

Main Results:

One diarylethene's racemic mixture spontaneously separated into enantiomers during 2D crystallization.
The second diarylethene formed a pseudoracemic crystal, coexisting enantiomers within ordered domains.
Surface coverage dependence on enantiomer concentration provided insights into mixing behavior.

Conclusions:

Photochromic diarylethenes display diverse chiral self-assembly behaviors in 2D crystalline states.
The observed differences are attributed to the specific molecular structures of the diarylethenes.
This study offers a method for analyzing enantiomer mixing in 2D molecular assemblies.