Download or read book Spectra of Anthraquinone Derivatives written by R. H. Peters and published by . This book was released on 1953 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Electronic Spectroscopy of Amino and Hydroxy Anthraquinones written by Mohd. Shahid Khan and published by LAP Lambert Academic Publishing. This book was released on 2012 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: The amino and hydroxy anthraquinones possess numerous chemically and biologically significant properties and as a group are also of considerable practical importance in the production of dyes & intermediates and as model compounds to gain fundamental information. These derivatives of anthraquinones have found important applications as prominent family of pharmaceutically active and biologically relevant chromophores. A detailed and comprehensive study of electronic absorption spectra of anthraquinone and its hydroxy and amino derivatives and their theoretical interpretation are presented. The effect of solvents on the electronic absorption spectra of anthraquinones is studied using twenty four solvents of different polarities. A careful study of the effect of solvents on the electronic spectra of anthraquinones reveals that the hydrogen bonding effects are of considerable importance in understanding the spectral shifts in the charge transfer transitions. The spectral shifts in various solvents indicate that their values mainly depend on the strength of the hydrogen bonds between the substituent groups and the solvent molecules and the extent of the intramolecular hydrogen bonding.

Download or read book The Mechanism of the Reversible Reduction of Anthraquinone Derivatives in Aqueous Solution written by Arthur Douglas Broadbent and published by . This book was released on 1964 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Correlation Between Molecular Structure and Self Healing in a Series of Anthraquinone Derivatives Doped in Poly methyl Methacrylate written by Prabodh Dhakal and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The data obtained from temperature-dependent photodecay and recovery as well as concentration-dependent photodecay are found to be in qualitative agreement with the Correlated Chromophore Domain Model (CCrDM).

Download or read book Derivatives of Anthraquinone written by Colin Mackenzie Mackall and published by . This book was released on 1922 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Synthesis and Properties of Derivatives of 1 amino 4 hydroxy Anthraquinone written by E. I. I. Ezenwafor and published by . This book was released on 1985 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Advances in Molecular Spectroscopy written by A. Mangini and published by Elsevier. This book was released on 2013-09-24 with total page 501 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Molecular Spectroscopy, Volume 2 covers the proceedings of the Fourth International Meeting on Molecular Spectroscopy. This volume is composed of 80 chapters that focus on numerous applications of various molecular spectroscopic techniques, particularly in the field of organic compound analysis. The techniques covered include UV absorption, fluorescence, IR spectroscopy. Various organic compounds evaluated include diphenylselenides, benzyl-phenyl-selenides, substituted benzophenones, hydrides, polycyclic aromatic hydrocarbons, methylhydroxylamines, methyl thiocyanate, poly aldehydes, and cycle-trimethylene trinitramine. This book is of value to analytical and organic chemists.

Download or read book Handbook of Natural Colorants written by Thomas Bechtold and published by John Wiley & Sons. This book was released on 2023-06-19 with total page 693 pages. Available in PDF, EPUB and Kindle. Book excerpt: Handbook of Natural Colorants Second Edition A detailed survey of a variety of natural colorants and their different applications including textiles, polymers, and cosmetics Colorants describe a wide range of materials such as dyes, pigments, inks, paint, or chemicals, which are used in small quantities but play an important role in many products such as textiles, polymers, food, and cosmetics. As the effects of climate change begin to be felt, there has been a shift in focus in the field to renewable resources and sustainability, and an interest in the replacement of oil-based products with greener substitutions. As the push to adopt natural resources grows, there have been significant developments in the research and application of natural colorants as a step in the transition to a bio-based economy. The second edition of Handbook of Natural Colorants provides a detailed introduction to natural colorants in a marriage of theory and practice, from seed of plant to consumer demand. Presenting a wide range of viewpoints, the book briefly discusses the history of coloration technology and the current position of natural colorants before highlighting detailed information on regional plant source availability, colorant production and properties, as well as analytical methods for isolation, identification, and toxicity aspects. It also presents key applications in technical use and consumer products, including the use of natural colorants in textiles, hair dyeing, printing, and packaging. Finally, the text considers environmental and economic aspects of natural colorants. Handbook of Natural Colorants is a useful reference for dyers, textile producers, and researchers in the evolving field of sustainable chemistry, environmental sciences, agricultural sciences, and polymer sciences. Revised and updated content throughout to reflect developments in research and applications over the past decade New content on biotechnology in natural colorant production, natural colorants for mass coloration polymers, natural colorants in printing/packaging, and plant-based pigments Discusses strategies for scale-up, including consideration of energy, waste, and effluents For more information on the Wiley Series in Renewable Resources, visit www.wiley.com/go/rrs

Download or read book Studies on the Quantitative Determination of Anthraquinone Derivatives in Cathartic Drugs written by Muppanna Channavirappa Tumminkatti and published by . This book was released on 1926 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Development of New Synthetic Approaches towards the Anthraquinone Xanthone Heterodimeric Structure of Beticolin 0 written by Janina Beck and published by Logos Verlag Berlin GmbH. This book was released on 2020-09-15 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mycotoxins are fungal secondary metabolites exhibiting adverse effects on humans, animals as well as crops, resulting in diseases and economic loss. Beticolins are mycotoxins produced by the fungus Cercospora beticola which is responsible for cercosporiosis, commonly known as leaf spot disease, causing heavy damages to crops worldwide. In order to study the mechanism of action of these biologically active compounds, this thesis aimed at the development of synthetic approaches towards the highly complex polycyclic scaffold of beticolins. Beticolins consist of a chlorinated tetrahydroxanthone linked to an anthraquinone subunit via a unique bicyclo[3.2.2]nonane ring system. A facile route towards naphthoquinone derivatives and subsequent Diels-Alder cycloadditions with functionalized dienes afforded a highly functionalized anthraquinone subunit of beticolin 0. For the installation of a tetrahydroxanthone subunit, a synthetic route was elaborated. With the obtained anthraquinone derivatives intramolecular couplings were performed under different conditions, to facilitate the construction of the bicyclo[3.2.2]nonane ring system. The formation of the desired scaffold turned out to be challenging, however a variety of novel bicyclo[3.3.1]systems was obtained, representing interesting scaffolds. During a research stay at the University of Copenhagen, the functionalization of helical beta-peptoids was examined. Peptidomimetics adopting three-dimensional structures with well-defined display of functional groups while being resistant to proteolysis, are of interest for the development of foldamers with a desired function.

Download or read book Anthracene and Anthraquinone written by Edward de Barry Barnett and published by . This book was released on 1921 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Optics and Spectroscopy written by and published by . This book was released on 1984 with total page 798 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Electronic Spectra of Anthraquinones written by Viktor I︠A︡kovlevich Fain and published by . This book was released on 1974 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book On Some Derivatives of Anthraquinone written by A. G. Perkin and published by . This book was released on 1885 with total page 684 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Guide to Fluorescence Literature written by Richard A. Passwater and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt: The major reason forpresentingabiblio ultraviolet light, or which make only a casual graphy on fluorescence and phosphorescence reference to the fluorescence technique were can be summed up in one statement: A recent usually rejected. However, occasionally survey showed that twenty-two percent of all papers of this nature were included because chemical and clinical research was uninten fluorescence methods seem to have unusual tionally duplicated. A comprehensive source potential for the problems discussed. Again, if pertinent papers were missed the authors book of fluorescence and phosphorescence would be grateful to have these omissions techniques is therefore needed not only to suggest ideas for future research, but to help called to their attention. The abbreviations of journal names em decrease needless duplication and expense, ployed in this Guide are those used by and thus to promote the development of both disciplines. Chemical Abstracts. Each paper has been The authors hope that researchers new given an alpha-numericalidentification. Sec to fluorescence techniques will appreciate tion A contains papers published in theyears the convenience of this Guide for obtaining 1950-1953, section B the years 1954-1956, data which otherwise could be found only by section C the years 1957-1959, and section reviewing dozens of papers, many difficult to D the years 1960-1964. Section E contains find, and that old hands will find ita valuable papers missed in the original compilation.

Download or read book The Magnetic Susceptibility and Ultra Violet Absorption Spectra of Some Substituted Anthraquinone Reduction Intermediates written by Thomas Neil Morris Waters and published by . This book was released on 1953 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Spectra of Atoms and Molecules written by Peter F. Bernath and published by Oxford University Press. This book was released on 2005-04-21 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt: 1. Introduction. 1.1. Waves, Particles, and Units. 1.2. The Electromagnetic Spectrum. 1.3. Interaction of Radiation with Matter. 1.3a. Blackbody Radiation. 1.3b. Einstein A and B Coefficients. 1.3c. Absorption and Emission of Radiation. 1.3d. Beer's Law. 1.3e. Lineshape Functions. 1.3f. Natural Lifetime Broadening. 1.3g. Pressure Broadening. 1.3h. Doppler Broadening. 1.3i. Transit-Time Broadening. 1.3j. Power Broadening. 2. Molecular Symmetry. 2.1. Symmetry Operations. 2.1a. Operator Algebra. 2.1b. Symmetry Operator Algebra. 2.2. Groups. 2.2a. Point Groups. 2.2b. Classes. 2.2c. Subgroups. 2.3.