Related Experiment Video
Updated: May 31, 2025
10:45
Crystallization and Structural Determination of an Enzyme:Substrate Complex by Serial Crystallography in a Versatile Microfluidic Chip
Published on: March 20, 2021
8.2K
Crystallisation Based Deracemisation and Chiral Resolution of Small Molecules.
Abhay S K Saseendran1, Haritha Jayaraj1, Krishnan Kartha Kalathil1
1School of Chemical Sciences, Mahatma Gandhi University, Priyadarsini Hills P O, Kottayam, 686560, Kerala, India.
Chemistry, an Asian Journal
|January 24, 2025
Summary
Chiral molecule separation is crucial for science and medicine. This review explores crystallization methods for enantiomeric separation, focusing on mechanisms and applications for synthetic chemists.
Area of Science:
- Chirality and enantiomeric separation
- Crystallization-driven separation processes
Background:
- Enantiomeric separation is vital for understanding life's origins and in scientific research.
- Crystallization, particularly conglomerate formation, is a key method for separating chiral molecules.
- Current understanding of crystallization-driven enantiomeric separation pathways, especially for small organic molecules, remains limited.
Purpose of the Study:
- To provide a comprehensive review of crystallization-driven enantiomeric separation strategies.
- To elucidate the complex mechanisms underlying enantiomeric separation via crystallization.
- To offer insights into controlling kinetic and thermodynamic pathways for improved chiral resolution.
Main Methods:
- Review of existing literature on crystallization-driven enantiomeric separation.
- Analysis of techniques involving mechanical forces, magnetic substrates, and seeding.
- Discussion of the interplay between kinetic and thermodynamic control in separation processes.
Main Results:
- Crystallization offers a powerful platform for enantiomeric separation, applicable to various systems.
- Methods like mechanical force, magnetic substrates, and seeding enhance chiral resolution.
- The mechanisms governing enantiomeric separation via crystallization, especially the kinetic-thermodynamic balance, require further investigation.
Conclusions:
- Crystallization is a versatile tool for enantiomeric separation with significant potential in pharmaceutical applications.
- A deeper understanding of separation mechanisms will enable the development of more innovative strategies.
- This review aims to equip synthetic chemists with knowledge for advancing enantiomeric separation techniques.
Related Concept Videos
02:30Racemic Mixtures and the Resolution of Enantiomers
18.1K
A racemic mixture, or racemate, is an equimolar mixture of enantiomers of a molecule that can be separated using their unique interaction with chiral molecules or media. Racemic mixtures are denoted by the (±)- prefix. This ‘optical rotation descriptor’ applies to the whole solution of a racemic mixture rather than a specific stereoisomer. Enantiomers typically have the same physical and chemical properties. Hence, they are not easily separable. However, enantiomers can exhibit...
18.1K
01:10Recrystallization: Solid–Solution Equilibria
1.0K
Recrystallization is a purification technique used to separate impurities from solid compounds. In this technique, no chemical reactions occur. Instead, it exploits physical properties only, specifically, the solubility differences between the desired compound and impurities, either at a single temperature or at different temperatures, and under other selected conditions. The solid-solution equilibrium (solubility equilibrium) of each component in the solution represents a binary phase...
1.0K
02:05Prochirality
3.8K
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...
3.8K
02:30Chirality at Nitrogen, Phosphorus, and Sulfur
5.7K
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...
A consequence of chirality is the need for enantiomeric resolution. While this is theoretically possible for all...
5.7K
02:15SN1 Reaction: Stereochemistry
8.3K
This lesson provides an in-depth discussion of the stereochemical outcomes in an SN1 reaction.
In the first step of an SN1 reaction, the bond between the electrophilic carbon and the leaving group ionizes to generate the carbocation intermediate. The second step of the mechanism is the nucleophilic attack.
In the formed carbocation, the positively charged carbon is sp2 hybridized with a trigonal planar geometry. As all the three substituents lie on the same plane, a plane of symmetry for the...
In the first step of an SN1 reaction, the bond between the electrophilic carbon and the leaving group ionizes to generate the carbocation intermediate. The second step of the mechanism is the nucleophilic attack.
In the formed carbocation, the positively charged carbon is sp2 hybridized with a trigonal planar geometry. As all the three substituents lie on the same plane, a plane of symmetry for the...
8.3K
01:15Chromatographic Resolution
404
In chromatography, a solute moves through a chromatographic column and tends to spread, forming a Gaussian-shaped band. The longer the solute spends in the column, the broader the band becomes. The broadening can lead to overlaps within the column, affecting separation effectiveness.
The effectiveness of separation can be evaluated by determining the level of separation between two neighboring peaks in a chromatogram, which represents the individual components of a sample.
In chromatography,...
The effectiveness of separation can be evaluated by determining the level of separation between two neighboring peaks in a chromatogram, which represents the individual components of a sample.
In chromatography,...
404