Chirality (chemistry) - Wikipedia
In chemistry, a molecule or ion is called chiral (/ ˈkaɪrəl /) if it cannot be superposed on its mirror image by any combination of rotations, translations, and some conformational changes.
Enantioselective synthesis - Wikipedia
A readily available chiral starting material is manipulated through successive reactions, often using achiral reagents, to obtain the desired target molecule. This can meet the criteria for enantioselective synthesis when a new chiral species is created, such as in an S N 2 reaction .
Chirality and Stereoisomers - Chemistry LibreTexts
2023年1月23日 · Chirality is a simple but essential idea to support the concept of stereoisomerism, being used to explain one type of its kind. The chemical properties of the chiral molecule differs from its mirror image, and in this lies the significance of chilarity in relation to modern organic chemistry.
Chirality of molecular nanostructures on surfaces via molecular ...
2021年8月1日 · Studying chirality during the adsorption, assembly, and reaction of molecules on 2D solid surfaces at molecular level not only sheds deep insights into the enantioselective heterogeneous catalysis, chiral recognition, origin and evolution of chirality, and many important physical chemistry processes but also provides an important strategy to ...
Achiral and chiral ligands synergistically harness chiral ... - Science
2024年10月18日 · Chiral multifunctional ligands, such as chiral tartaric, chiral aspartic, and chiral glutamic acids, can replace both chiral and achiral ligands. These compounds can sacrifice two or more functional groups to connect the building nanosheets into nanobundles while simultaneously transferring their chirality to the nanosheet arrangement ( Fig. 5C ...
Diverse Transient Chiral Dynamics in Evolutionary Distinct ...
2024年12月24日 · The evolution of photosynthetic reaction centers (RCs) from anoxygenic bacteria to higher-order oxygenic cynobacteria and plants highlights a remarkable journey of structural and functional diversification as an adaptation to environmental conditions. The role of chirality in these centers is important, influencing the arrangement and function of key molecules involved in photosynthesis ...
Recent Advances in the Enantioselective Synthesis of Chiral …
2021年10月22日 · A relevant number of new metal-catalyzed transformations for the synthesis of chiral amines have been reported. Important achievements have been made in enantioselective methods involving, among others, reductive amination, hydroamination, allylic amination, or isomerization reactions.
Chiral Metal–Organic Frameworks | Chemical Reviews - ACS …
2022年3月28日 · Chiral Reticular Chemistry: A Tailored Approach Crafting Highly Porous and Hydrolytically Robust Metal–Organic Frameworks for Intelligent Humidity Control. Journal of the American Chemical Society 2024, 146 (3) , 2141-2150. https://doi.org/10.1021/jacs.3c11733
The twists and turns of chiral chemistry | Nature Chemistry
2021年6月1日 · Chirality is fundamental to chemistry, molecular biology and photonics, but chirality itself is not often in the spotlight. Lewis E. MacKenzie and Patrycja Stachelek report on the 2021 Chiral...
Real-time monitoring of reaction stereochemistry through single ...
2023年5月15日 · Chirality identification at a high sensitivity level provides a promising tool for the study of symmetry-breaking reactions and sheds light on the origin of the chirality-induced spin...