Chirality In Supramolecular Assemblies

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Supramolecular chemistry deals with the organisation of molecules into defined assemblies using non-covalent interactions, including weaker and reversible interactions such as hydrogen bonds, and metal-ligand interactions. The aspect of stereochemistry within such chemical architectures, and in particular chirality, is of special interest as it impacts on considerations of molecular recognition, the development of functional materials, the vexed question of homochirality, nanoscale effects of interactions at interfaces, biocatalysis and enzymatic catalysis, and applications in organic synthesis. Chirality in Supramolecular Assemblies addresses many of these aspects, presenting a broad overview of this important and rapidly developing interdisciplinary field. Topics covered include: Origins of molecular and topological chirality Homochirogenesis Chirality in crystallinity Host-guest behavior Chiral influences in functional materials Chirality in network solids and coordination solids Aspects of chirality at interfaces Chirality in organic assemblies Chirality related to biocatalysis and enzymes in organic synthesis. This book is a valuable reference for researchers in the molecular sciences, materials science and biological science working with chiral supramolecular systems. It provides summaries and special insights by acknowledged international experts in the various fields.

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Genre : Science
Author : F. Richard Keene
Publisher : John Wiley & Sons
Release : 2017-01-03
File : 722 Pages
ISBN-13 : 9781118867310


Fundamentals Of Supramolecular Chirality

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Fundamentals of Supramolecular Chirality is a critical description of the start and advancement of supramolecular chirality. This book focuses on the noncovalent approach with some supplementary examples of covalent supramolecular chirality.This contribution to supramolecular chirality is not intended to be a mere catalogue and description of the work done. It also traces a philosophical path following the development and possible perspectives of this topic, providing not a review but a critical examination of the field.

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Genre : Science
Author : Roberto Purrello
Publisher : World Scientific
Release : 2021-10-18
File : 225 Pages
ISBN-13 : 9781800610262


Functional Supramolecular Nanoassemblies Of Conjugated Molecules

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Π-conjugated systems of delocalized aromatic electrons along their backbones, including conjugated small molecules, oligomers, polymers, and carbonaceous materials, etc., have received considerable attention from a wide variety of scientific and technical communities. Compared to inorganic materials, the advantages of those based on π-tectons lie in their broad diversity, flexibility, and tunability with regard to structure/geometry/morphology, processability, composition, functionality, electronic/band structure, etc. In terms of sophisticated molecular engineering, these features endow them not only with excellent self-assembly properties but also with unique optical, electrical, mechanical, photophysical, photochemical, and biochemical attributes. This renders them promising scaffolds for advanced functional materials (AFMs) in numerous areas of general interest such as electronics, optics, optoelectronics, photovoltaics, magnetic and piezoelectric devices, sensors, catalysts, biomedicines, and others. With regard to the design/synthesis of novel π-tectons, the launch of diverse assembly/fabrication protocols, theoretical calculations, etc., the past several decades have witnessed tremendous advancements along this direction. Thus far, a vast array of high-performance π-tectons-based AFMs have been initiated. To some extent, the cooperative principle of π-πstacking and other noncovalent interactions has been revealed, and the structure-property relationships have been disclosed. Despite the existing progress, this field still faces challenges, for example: (i) the need for scalable assembly/manufacture under ambient conditions—with low-cost, facile, environmentally-friendly protocols (ii) clearer correlations bridging the underlying intricate relationships of each successive step in assembly/manufacture (iii) corresponding theoretical calculations for guiding the rational design of π-tectons that elucidate the cooperative principle of π-π stacking and other noncovalent interactions, as well as the principle of structure-performance correlation (iv) stability and durability, among the most important concerns regarding their commercialization The advancements accumulated during the past decades have established a solid foundation for the further development of π-conjugated systems-based AFMs. We believe that with unrelenting efforts from both scientific and technical communities of various backgrounds, their practical applications will eventually be fulfilled. This Research Topic aims to address the above-mentioned challenges

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Author : Penglei Chen
Publisher : Frontiers Media SA
Release : 2020-01-13
File : 159 Pages
ISBN-13 : 9782889633609


Chirality In Transition Metal Chemistry

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Chirality in Transition Metal Chemistry is an essential introduction to this increasingly important field for students and researchers in inorganic chemistry. Emphasising applications and real-world examples, the book begins with an overview of chirality, with a discussion of absolute configurations and system descriptors, physical properties of enantiomers, and principles of resolution and preparation of enantiomers. The subsequent chapters deal with the the specifics of chirality as it applies to transition metals. Some reviews of Chirality in Transition Metal Chemistry "...useful to students taking an advanced undergraduate course and particularly to postgraduates and academics undertaking research in the areas of chiral inorganic supramolecular complexes and materials." Chemistry World, August 2009 “...the book offers an extremely exciting new addition to the study of inorganic chemistry, and should be compulsory reading for students entering their final year of undergraduate studies or starting a Ph.D. in structural inorganic chemistry.” Applied Organometallic Chemistry Volume 23, Issue 5, May 2009 “...In conclusion the book gives a wonderful overview of the topic. It is helpful for anyone entering the field through systematic and detailed introduction of basic information. It was time to publish a new and topical text book covering the important aspect of coordination chemistry. It builds bridges between Inorganic, organic and supramolecular chemistry. I can recommend the book to everybody who is interested in the chemistry of chiral coordination compounds .” Angew. chem. Volume 48, Issue 18, April 2009 About the Series Chirality in Transition Metal Chemistry is the latest addition to the Wiley Inorganic Chemistry Advanced Textbook series. This series reflects the pivotal role of modern inorganic and physical chemistry in a whole range of emerging areas such as materials chemistry, green chemistry and bioinorganic chemistry, as well as providing a solid grounding in established areas such as solid state chemistry, coordination chemistry, main group chemistry and physical inorganic chemistry.

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Genre : Science
Author : Hani Amouri
Publisher : John Wiley & Sons
Release : 2008-11-20
File : 260 Pages
ISBN-13 : 9780470721605


Design Principle And Application Of Self Assembled Nanobiomaterials In Biology And Medicine

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Design, Principle and Application of Self-Assembled Nanobiomaterials in Biology and Medicine discusses recent advances in science and technology using nanoscale units that show the novel concept of combining nanotechnology with various research disciplines within both the biomedical and medicine fields. Self-assembly of molecules, macromolecules, and polymers is a fascinating strategy for the construction of various desired nanofabrication in chemistry, biology, and medicine for advanced applications. It has a number of advantages: (1) It is involving atomic-level modification of molecular structure using bond formation advanced techniques of synthetic chemistry. (2) It draws from the enormous wealth of examples in biology for the development of complex, functional structures. (3) It can incorporate biological structures directly as components in the final systems. (4) It requires that the target self-assembled structures be thermodynamically most stable with relatively defect-free and self-healing. In this book, we cover the various emerging self-assembled nanostructured objects including molecular machines, nano-cars molecular rotors, nanoparticles, nanosheets, nanotubes, nanowires, nano-flakes, nano-cubes, nano-disks, nanorings, DNA origami, transmembrane channels, and vesicles. These self-assembled materials are used for sensing, drug delivery, molecular recognition, tissue engineering energy generation, and molecular tuning. - Provides a basic understanding of how to design, and implement various self-assembled nanobiomaterials - Covers principles implemented in the constructions of novel nanostructured materials - Offers many applications of self-assemblies in fluorescent biological labels, drug and gene delivery, bio-detection of pathogens, detection of proteins, probing of DNA structure, tissue engineering, and many more

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Genre : Medical
Author : Alok Pandya
Publisher : Academic Press
Release : 2022-08-04
File : 316 Pages
ISBN-13 : 9780323909853


Chirality At The Nanoscale

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The only standard reference in this exciting new field combines the physical, chemical and material science perspectives in a synergic way. This monograph traces the development of the preparative methods employed to create nanostructures, in addition to the experimental techniques used to characterize them, as well as some of the surprising physical effects. The chapters cover every category of material, from organic to coordination compounds, metals and composites, in zero, one, two and three dimensions. The book also reviews structural, chemical, optical, and other physical properties, finishing with a look at the future for chiral nanosystems.

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Genre : Technology & Engineering
Author : David B. Amabilino
Publisher : John Wiley & Sons
Release : 2009-02-11
File : 442 Pages
ISBN-13 : 9783527625352


Supramolecular Gels

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Supramolecular Gels Discover a current and authoritative overview of the cutting-edge in supramolecular gels from a leading voice in the field A promising new class of materials shows potential and is receiving increasing attention as an intelligent material for multifunctional systems. In a work that is sure to be of great interest to a wide variety of researchers, chemists, and engineers, Supramolecular Gels: Materials and Emerging Applications delivers an application-oriented and focused book exploring the most recent applications of supramolecular gels. This interdisciplinary book presents the underlying fundamentals of supramolecular gels before discussing their assembly mechanisms and structures. It also introduces different material systems, including composite supramolecular gels, organogels, hydrogels, self-healing, and graphene-based supramolecular gels. The book discusses current and emerging applications of these materials in devices like sensors and actuators, biomedical tools, and environmental applications. The distinguished author also offers valuable insights with respect to the design and character of brand-new versatile soft materials. Readers will also benefit from the inclusion of: A thorough introduction to the fundamentals of supramolecular gels, including their formation, classification, self-assembly, and mechanisms An exploration of supramolecular chirality and regulation in gel structures, as well as self-assembly and environmental applications of composite supramolecular gels Practical discussions of fluorescent organogels and hydrogels and their applications in analyte sensing An examination of self-healing and graphene-based supramolecular gels, and supramolecular gels for sensors and actuators Perfect for materials scientists, organic chemists, biochemists, catalytic chemists, and environmental chemists, Supramolecular Gels: Materials and Emerging Applications will also earn a place in the libraries of sensor developers and other professionals seeking a one-stop reference for this rapidly developing category of intelligent materials.

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Genre : Technology & Engineering
Author : Tifeng Jiao
Publisher : John Wiley & Sons
Release : 2021-08-23
File : 274 Pages
ISBN-13 : 9783527345113


Chiral Building Blocks In Asymmetric Synthesis

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Chiral Building Blocks in Asymmetric Synthesis A comprehensive introduction to the important classes of chiral building blocks Chirality — the asymmetric quality found in certain chemical compounds — plays an essential role in our world: chiral compounds can be found in biology, pharmaceutical compounds, agrochemicals, and fragrances. The stereoselective preparation of these complex molecular constructions constitutes a challenge. To this end, modern asymmetric synthesis utilizes a variety of valuable and efficient reagents employed as chiral auxiliaries, metal complexes and organocatalysts in stereoselective catalysis, and enantiopure reactants termed as chiral building blocks. In Chiral Building Blocks in Asymmetric Synthesis, the achievements in the fields of preparation of and applications of chiral blocks are presented. In doing so, the book comprehensively discusses the important classes of these reactants as the key for the asymmetric synthesis of chiral molecules. As such, it is an indispensable resource about synthetic methods, as well as possible modifications and transformations of important classes of chiral compounds. It also highlights the importance of their use as reactants and auxiliaries in the preparation of more sophisticated molecules or supramolecular systems. In Chiral Building Blocks in Asymmetric Synthesis readers will also find: Organization according to the most important compound classes — e.g. amino acids, BINOL and its derivatives, terpenes, and others — with an emphasis on synthesis and application A focus on the use of chiral building blocks for the preparation of bioactive compounds and supramolecular assemblies Chiral Building Blocks in Asymmetric Synthesis is a useful reference for organic chemists, catalytic chemists, chemists in industry, medicinal chemists, pharmaceutical chemists, and the libraries that support them.

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Genre : Science
Author : Jacek Wojaczynski
Publisher : John Wiley & Sons
Release : 2022-08-05
File : 692 Pages
ISBN-13 : 9783527834198


Comprehensive Chiroptical Spectroscopy Volume 2

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This book provides an introduction to the important methods of chiroptical spectroscopy in general, and circular dichroism (CD) in particular, which are increasingly important in all areas of chemistry, biochemistry, and structural biology. The book can be used as a text for undergraduate and graduate students and as a reference for researchers in academia and industry. Experimental methods and instrumentation are described with topics ranging from the most widely used methods (electronic and vibrational CD) to frontier areas such as nonlinear spectroscopy and photoelectron CD, as well as the theory of chiroptical methods and techniques for simulating chiroptical properties. Applications of chiroptical spectroscopy to problems in organic stereochemistry, inorganic stereochemistry, and biochemistry and structural biology are also discussed, and each chapter is written by one or more leading authorities with extensive experience in the field.

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Genre : Science
Author : Nina Berova
Publisher : John Wiley & Sons
Release : 2012-02-17
File : 884 Pages
ISBN-13 : 9781118120385


Possible Scenarios For Homochirality On Earth

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In 1978, Fred Hoyle proposed that interstellar comets carrying several viruses landed on Earth as part of the panspermia hypotheses. With respect to life, the origin of homochirality on Earth has been the greatest mystery because life cannot exist without molecular asymmetry. Many scientists have proposed several possible hypotheses to answer this long-standing L-D question. Previously, Martin Gardner raised the question about mirror symmetry and broken mirror symmetry in terms of the homochirality question in his monographs (1964 and 1990). Possible scenarios for the L-D issue can be categorized into (i) Earth and exoterrestrial origins, (ii) by-chance and necessity mechanisms, and (iii) mirror-symmetrical and non-mirror-symmetrical forces as physical and chemical origins. These scenarios should involve further great amplification mechanisms, enabling a pure L- or D-world.

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Genre : Science
Author : Michiya Fujiki
Publisher : Buy this from MDPI Books
Release : 2019-11-14
File : 318 Pages
ISBN-13 : 9783039217229