Modified Cyclodextrins As Catalysts And Molecular Reactors
DOWNLOAD
Download Modified Cyclodextrins As Catalysts And Molecular Reactors PDF/ePub or read online books in Mobi eBooks. Click Download or Read Online button to get Modified Cyclodextrins As Catalysts And Molecular Reactors book now. This website allows unlimited access to, at the time of writing, more than 1.5 million titles, including hundreds of thousands of titles in various foreign languages. If the content not found or just blank you must refresh this page
Modified Cyclodextrins As Catalysts And Molecular Reactors
DOWNLOAD
Author : Lorna Barr
language : en
Publisher:
Release Date : 2004
Modified Cyclodextrins As Catalysts And Molecular Reactors written by Lorna Barr and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with Catalysts categories.
Modified Cyclodextrins Scaffolds And Templates For Supramolecular Chemistry
DOWNLOAD
Author : Chris J Easton
language : en
Publisher: World Scientific
Release Date : 1999-04-29
Modified Cyclodextrins Scaffolds And Templates For Supramolecular Chemistry written by Chris J Easton and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999-04-29 with Science categories.
Through modification, the natural cyclodextrins are effective templates for the generation of a wide range of molecular hosts. This makes it possible to tailor a cyclodextrin host to a particular guest, to meet specific requirements in the host-guest complex, and opens the way to diverse new areas of supramolecular chemistry. Metallocyclodextrins, rotaxanes and catenanes, as well as surface monolayers of modified cyclodextrins, are readily obtained. The native cyclodextrins serve as scaffolds on which functional groups and other substituents can be assembled, with controlled geometry. This results in substantially improved molecular recognition and procedures for chemical separation, including enantiomer discrimination, through guest binding. Access to the gamut of functional groups greatly expands the utility of cyclodextrins in chemical synthesis and provides catalysts which mimic the entire range of enzymic activity. Modifications to the cyclodextrins also lead to a wide range of photochemistry of cyclodextrin complexes, through which the enhancement of guest reactivity occurs; in addition, light harvesting molecular devices and photochemical frequency switches may be constructed. In solution, modified cyclodextrins have been used to construct molecular reactors, as well as molecular, temperature and pH sensors. At surfaces, they form semipermeable membranes and sensor electrodes. Such exciting fields of chemistry, made possible only through modifications to the natural cyclodextrins, are the subject of this book.
Modified Cyclodextrins
DOWNLOAD
Author : Christopher J. Easton
language : en
Publisher: Imperial College Press
Release Date : 1999-01-01
Modified Cyclodextrins written by Christopher J. Easton and has been published by Imperial College Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999-01-01 with Science categories.
Through modification, the natural cyclodextrins are effective templates for the generation of a wide range of molecular hosts. This makes it possible to tailor a cyclodextrin host to a particular guest, to meet specific requirements in the host -- guest complex, and opens the way to diverse new areas of supramolecular chemistry. Metallocyclodextrins, rotaxanes and catenanes, as well as surface monolayers of modified cyclodextrins, are readily obtained. The native cyclodextrins serve as scaffolds on which functional groups and other substituents can be assembled, with controlled geometry. This results in substantially improved molecular recognition and procedures for chemical separation, including enantiomer discrimination, through guest binding. Access to the gamut of functional groups greatly expands the utility of cyclodextrins in chemical synthesis and provides catalysts which mimic the entire range of enzymic activity. Modifications to the cyclodextrins also lead to a wide range of photochemistry of cyclodextrin complexes, through which the enhancement of guest reactivity occurs; in addition, light harvesting molecular devices and photochemical frequency switches may be constructed. In solution, modified cyclodextrins have been used to construct molecular reactors, as well as molecular, temperature and pH sensors. At surfaces, they form semipermeable membranes and sensor electrodes. Such exciting fields of chemistry, made possible only through modifications to the natural cyclodextrins, are the subject of this book.
Molecular Encapsulation
DOWNLOAD
Author : Udo H. Brinker
language : en
Publisher: John Wiley & Sons
Release Date : 2011-07-07
Molecular Encapsulation written by Udo H. Brinker and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-07-07 with Science categories.
The inclusion of small guest molecules within suitable host compounds results in constrained systems that imbue novel properties upon the incarcerated organic substrates. Supramolecular tactics are becoming widely employed and this treatise spotlights them. Often, the impact of encapsulation on product formation is substantial. The use of constrained systems offers the means to steer reactions along desired pathways. A broad overview of various supramolecular approaches aimed to manipulate chemical reactions are featured. The following topics are covered in detail: - general concepts governing the assembly of the substrate with the reaction vessel - preparation of molecular reactors - stabilization of reactive intermediates - reactions in water, in organic solvents, and in the solid state - photochemical reactions - reactions with unusual regioselectivity Molecular Encapsulation: Organic Reactions in Constrained Systems is an essential guide to the art of changing the outcome and the selectivity of a chemical reaction using nano-sized reaction vessels. It will find a place on the bookshelves of students and researchers working in the areas of supramolecular chemistry, nanotechnology, organic and pharmaceutical chemistry, and materials science as well.
Organic Nanoreactors
DOWNLOAD
Author : Samahe Sadjadi
language : en
Publisher: Academic Press
Release Date : 2016-03-28
Organic Nanoreactors written by Samahe Sadjadi and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-03-28 with Science categories.
Organic Nanoreactors: From Molecular to Supramolecular Organic Compounds provides a unique overview of synthetic, porous organic compounds containing a cavity which can encapsulate one or more guest(s). Confined space within a nanoreactor can isolate the guest(s) from the bulk and effectively influence the reaction inside the nanoreactor. Naturally occurring enzymes are compelling catalysts for selective reactions as their three-dimensional structures build up clefts, caves, or niches in which the active site is located. Additionally, reactive sites carrying special functional groups allow only specific reagents to react in a particular way, to lead to specific enantiomers as products. Equipped with suitable functional groups, then, nanoreactors form a new class of biomimetic compounds, which have multiple important applications in the synthesis of nanomaterials, catalysis, enzyme immobilization, enzyme therapy, and more. This book addresses various synthetic, organic nanoreactors, updating the previous decade of research and examining recent advances in the topic for the first comprehensive overview of this exciting group of compounds, and their practical applications. Bringing in the Editor’s experience in both academic research and industrial applications, Organic Nanoreactors focuses on the properties and applications of well-known as well as little-examined nanoreactor compounds and materials and includes brief overviews of synthetic routes and characterization methods. Focuses on organic nanoreactor compounds for greater depth Covers the molecular, supramolecular, and macromolecular perspectives Compiles previous and current sources from this growing field in one unique reference Provides brief overviews of synthetic routes and characterization methods
Cyclodextrins Preparation And Application In Industry
DOWNLOAD
Author : Jin Zhengyu
language : en
Publisher: World Scientific
Release Date : 2018-01-03
Cyclodextrins Preparation And Application In Industry written by Jin Zhengyu and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-01-03 with Science categories.
Cyclodextrins are an extremely versatile class of chemicals highly prized for their ability to incorporate a plethora of organic, inorganic and biologic guest molecules into their hydrophobic cavities and form host-guest inclusion complexes. As excellent molecular receptors, they have long been exploited in many important industries such as food and agriculture, pharmaceuticals, cosmetics, textiles, analytical chemistry and enzyme mimics. Researchers, technicians and application specialists in many industries will appreciate this handy volume that systematically discusses how cyclodextrins are applied in their industries. Special attention is devoted to the preparation of inclusion complexes, novel properties of the resultant complexes, and details on applying those properties to industry. Contents: Introduction (Junrong Huang, Qi Yang, and Huayin Pu)General Methods for the Preparation of Cyclodextrin Inclusion Complexes (Jinpeng Wang, Haoran Fan, and Mengke Zhang)Applications in Food (Chao Yuan, Wangyang Shen, Bo Yu, and Xing Zhou)Applications in Agriculture (Jianwei Zhao and Shengjun Wu)Applications in Pharmaceuticals (Xiuting Hu and Yaoqi Tian)Applications in Cosmetics (Tao Feng, Haining Zhuang, and Na Yang)Applications in the d104ile Industry (Jin Xu)Applications in Analytical Chemistry (Xuehong Li)Cyclodextrin-Based Enzyme Mimics (Aiquan Jiao) Readership: Researchers, technicians and application specialists in food and agriculture, pharmaceuticals, cosmetics, textiles, analytical chemistry and environmental engineering industries. Keywords: Cyclodextrins;Preparation;Application;IndustryReview: Key Features: Shows researchers and technologists how to use cyclodextrins as host compounds and further promote related researchCovers seven fields in one volumeDiscusses the preparation of the inclusion complexes and the important properties of the resultant complexes are covered in detail
Handbook Of Macrocyclic Supramolecular Assembly
DOWNLOAD
Author : Yu Liu
language : en
Publisher: Springer
Release Date : 2020-07-19
Handbook Of Macrocyclic Supramolecular Assembly written by Yu Liu and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-07-19 with Science categories.
This handbook presents recent advances and offers a comprehensive reference resource covering the developments in and applications of macrocyclic supramolecular assembly, with a focus on their construction, structural characters and biological functions. The main topics addressed include: Construction and structure of macrocyclic supramolecular assembly – key building blocks, construction methods, structural motifs, and stimuli responsive control Approach and technology – controllable synthesis, molecular recognition, spectral and thermodynamic study, supramolecular assembly at interfaces, orthogonal self-assembly, the supramolecular organic framwork (SOF), molecular induced aggregation, supramolecule assisted 3D printing, theoretical calculation and molecular simulation Biological applications – chemical and biological sensing, theranostic tools, molecule/ion channels, drug/gene delivery, supramolecule assisted biomolecule production, supramolecule assisted transmembrane transport, supramolecule assisted immunity regulation, supramolecule-based medicinal drug, etc. This handbook appeals to graduate and undergraduate students as well as scientists with interests in supramolecular chemistry, biochemistry, functional material and nanotechnology.
Sustainable Inorganic Chemistry
DOWNLOAD
Author : David A. Atwood
language : en
Publisher: John Wiley & Sons
Release Date : 2016-10-17
Sustainable Inorganic Chemistry written by David A. Atwood and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-10-17 with Science categories.
The Earth's natural resources are finite and easily compromised by contamination from industrial chemicals and byproducts from the degradation of consumer products. The growing field of green and sustainable chemistry seeks to address this through the development of products and processes that are environmentally benign while remaining economically viable. Inorganic chemistry plays a critical role in this endeavor in areas such as resource extraction and isolation, renewable energy, catalytic processes, waste minimization and avoidance, and renewable industrial feedstocks. Sustainable Inorganic Chemistry presents a comprehensive overview of the many new developments taking place in this rapidly expanding field, in articles that discuss fundamental concepts alongside cutting-edge developments and applications. The volume includes educational reviews from leading scientists on a broad range of topics including: inorganic resources, sustainable synthetic methods, alternative reaction conditions, heterogeneous catalysis, photocatalysis, sustainable nanomaterials, renewable and clean fuels, water treatment and remediation, waste valorization and life cycle sustainability assessment. The content from this book will be added online to the Encyclopedia of Inorganic and Bioinorganic Chemistry.
Deactivation And Regeneration Of Zeolite Catalysts
DOWNLOAD
Author : Guisnet Michel
language : en
Publisher: World Scientific Publishing Company
Release Date : 2011-02-21
Deactivation And Regeneration Of Zeolite Catalysts written by Guisnet Michel and has been published by World Scientific Publishing Company this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-02-21 with Science categories.
In chemical processes, the progressive deactivation of solid catalysts is a major economic concern and mastering their stability has become as essential as controlling their activity and selectivity. For these reasons, there is a strong motivation to understand the mechanisms leading to any loss in activity and/or selectivity and to find out the efficient preventive measures and regenerative solutions that open the way towards cheaper and cleaner processes. This book covers the fundamental and applied aspects of solid catalyst deactivation in a comprehensive way and encompasses the state of the art in the field of reactions catalyzed by zeolites. This particular choice is justified by the widespread use of molecular sieves in refining, petrochemicals and organic chemicals synthesis processes, by the large variety in the nature of their active sites (acid, base, acid-base, redox, bifunctional) and especially by their peculiar features, in terms of crystallinity, structural order and textural properties, which make them ideal models for heterogeneous catalysis. The aim of this book is to be a critical review in the field of zeolite deactivation and regeneration by collecting contributions from experts in the field which describe the factors, explain the techniques to study the causes and suggest methods to prevent (or limit) catalyst deactivation. At the same time, a selection of commercial processes and exemplar cases provides the reader with theoretical insights and practical hints on the deactivation mechanisms and draws attention to the key role played by the loss of activity on process design and industrial practice./a
Supramolecular Catalysts
DOWNLOAD
Author : Cheng-Yong Su
language : en
Publisher:
Release Date : 2020-03-13
Supramolecular Catalysts written by Cheng-Yong Su and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-03-13 with Science categories.
The construction of catalysts by supramolecular forces has recently become a powerful tool and the role of noncovalent interactions can assist in designing new tools for the construction of effective and selective catalytic systems. It is unquestionably, vastly important to understand how different noncovalent interactions can be controlled or manipulated under appropriate reaction conditions. Supramolecular catalysts have had a tremendous impact on the syntheses of both chemical commodities and fine chemicals over the last 50 years, leading to the discovery of new reactions that were previously deemed impossible. This means that supramolecular chemistry plays a predominant role in accelerating or understanding chemical reactions.This book which addresses the above points is written by some of the leading contributors in this field and is intended for graduate students, researchers and academics working in supramolecular chemistry, organic chemistry, inorganic chemistry, and physical chemistry as well as researchers with an interest in the area of catalysis. The authors give examples illustrating the growth of the field, especially with special emphasis on new results published over the last decade. They also provide an explanation of fundamentals and topical research.