Download or read book Investigation of the Infrared Absorption Spectra of Selected Aromatic Compounds written by R. J. Jakobsen and published by . This book was released on 1962 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: As the first step in making assignments of the low-frequency vibrations of para-substituted benzene compounds, complete vibrational assignments of several representative compounds have been started. While assignments have been made for many monosubstituted benzenes, there is need for a complete assignment of a monosubstituted benze with an electron-attracting substituent. To fill this need, an assignment of benzonitrile has been made. Attempts to prepare benzonitrile-d sub 5 were unsuccessful, but are being continued. To confirm the previous assignment of phenol, a sample of phenol-2,4,6-d sub 3 was prepared. A complete vibrational assignment of this molecule was made. Attempts to prepare phenol-d sub 5 are in progress. The assignments of p-cresol and deuterated p-cresols was carried almost to completion. Using the vibrational assignments mentioned above as a foundation, the low-frequency vibrations of 28 para-substituted benzene compounds were assigned as completely as possible. It was shown that certain of the lowfrequency vibrations are sensitive to the nature of the substituent. (Author).
Download or read book Investigation of the Infrared Absorption Spectra of Selected Aromatic Compounds written by BATTELLE MEMORIAL INST COLUMBUS OHIO. and published by . This book was released on 1962 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt: As the first step in making assignments of the low-frequency vibrations of para-substituted benzene compounds, complete vibrational assignments of several representative compounds have been started. While assignments have been made for many monosubstituted benzenes, there is need forA COMPLETE ASSIGNMENT OF A MONOSUBSTITUTED BENZENE WITH AN ELECTRON-ATTRACTING SUBSTITUENT. To fill this need, an assignment of benzonitrile has been made. Attempts to prepare benzonitrile-d sub 5 were unsuccessful, but are being continued. To confirm the previous assignment of phenol, a sample of phenol-2,4,6-d sub 3 was prepared. A complete vibrational assignment of this molecule was made. Attempts to prepare phenol-d sub 5 are in progress. The assignments of p-cresol and deuterated p-cresols was carried almost to completion. Using the vibrational assignments mentioned above as a foundation, the low-frequency vibrations of 28 para-substituted benzene compounds were assigned as completely as possible. It was shown that certain of the lowfrequency vibrations are sensitive to the nature of the substituent. (Author).
Download or read book Investigation of the Infrared Absorption of Selected Aromatic Compounds in the Region of 2 to 35 Microns written by R. J. Jakobsen and published by . This book was released on 1960 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Fundamental Study of the Infrared Spectra of Substituted Aromatic Compounds written by W. C Coburn (Jr) and published by . This book was released on 1962 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: Attempts were made to correlate the intensities of far IR absorption bands of momo- and disubstituted benzenes with physical properties of the molecules or of their substituents. I NTENSITIES WERE MEASURED FOR MONOSUBSTITUTED BENZENES HAVING THESE SUBSTITUENTS: -F, -Cl, -Br, -I, -CN, CH3, -CF3, -CCl3, -NO2, and -OCH3. Some second-degree correlations but no useful simple correlation were found. Correlations were sought for the intensity of symmetrical 1,4-disubstituted benzenes, a vibration probably not as likely to mix with other modes of its symmetry species. However, the intensities did not correlate well. Complete IR of all 38 compounds studied are catalogued from 4000 to 265 reciprocal cm. (Author).
Download or read book Interpretation of the Ultraviolet Spectra of Natural Products written by A. I. Scott and published by Elsevier. This book was released on 2013-10-22 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt: Interpretation of the Ultraviolet Spectra of Natural Products focuses on the ultraviolet spectrum of chromophores. The book first discusses single chromophores, including absorption due to electron lone pairs in saturated systems and absorption of olefins, alkynes, carbonyl compounds, and thiocarbonyl compounds. The text also takes a look at conjugated chromosomes, such as polyenes, enynes, and conjugated azomethines. The selection also evaluates C-aromatic compounds. Topics include benzenoid and hydrocarbons; phenols and their ethers; styrenes and stilbenes; aromatic carbonyl compounds; and nitro compounds. The text also discusses O- and S- heteroaromatic compounds and N-heteroaromatic compounds. The book highlights the applications of spectrophotometry to the analysis of natural products. Topics include formation of derivatives having absorbing chromophores; reactions leading to changes in absorption of added reagents; and analyses involving transformation to products suitable for spectrophotometry. The text is a good reference for readers wanting to explore chromophores.
Download or read book A Review of the Air Force Materials Research and Development Program written by United States. Wright Air Development Division and published by . This book was released on 1954 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt: A review of the research and development work sponsored in the field of materials and processes over the past decade is presented. Abstracts of WADC Technical Reports for the period 1 July 1951 to 30 June 1953 are included. A summary of Technical Reports published in the areas of metallurgy, textiles, petroleum products, structural materials, rubbers, plastics, packaging, protective treatments, analysis and measurements are included also.
Download or read book Journal of Research of the National Bureau of Standards written by United States. National Bureau of Standards and published by . This book was released on 1968 with total page 826 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Infrared Spectral Interpretation written by Brian C. Smith and published by CRC Press. This book was released on 2018-02-06 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: This author's second volume introduces basic principles of interpreting infrared spectral data, teaching its readers to make sense of the data coming from an infrared spectrometer. Contents include spectra and diagnostic bands for the more common functional groups as well as chapters on polyester spectra and interpretation aids. Discussions include: Science of infrared interpretation Light and molecular vibrations How and why molecules absorb infrared radiation Peak heights, intensities, and widths Hydrocarbons, carbonyl groups, and molecules with C-N bonds Polymers and inorganic molecules The use of atlases, library searching, spectral subtraction, and the Internet in augmenting interpretation Each chapter presents an introduction to the nomenclature and structure of a specific functional group and proceeds with the important diagnostic bands for each group. Infrared Spectral Interpretation serves both novices and experienced practitioners in this field. The author maintains a website and blog with supplemental material. His training course schedule is also available online.
Download or read book A Review of the Air Force Materials Research and Development Program written by Donna J. Tate and published by . This book was released on 1962 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt: These reports cover basic and applied research in the materials area being conducted by the Metals and Ceramics, Non-metallic Materials, Physics, Manufacturing Technology and Applications Laboratories of the Directorate of Materials and Processes.
Download or read book Introduction to Infrared and Raman Spectroscopy written by Norman Colthup and published by Elsevier. This book was released on 2012-12-02 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction to Infrared and Raman Spectroscopy focuses on the theoretical and experimental aspects of infrared and Raman spectroscopy, with emphasis on detailed group frequency correlations and their vibrational origin. Topics covered include vibrational and rotational spectra, molecular symmetry, methyl and methylene groups, triple bonds and cumulated double bonds, and olefin groups. Aromatic and heteroaromatic rings are also considered, along with carbonyl compounds and molecular vibrations. This book is comprised of 14 chapters and begins with a discussion on the use of Raman and infrared spectroscopy to study the vibrational and rotational frequencies of molecules, paying particular attention to photon energy and degrees of freedom of molecular motion. The quantum mechanical harmonic oscillator and the anharmonic oscillator are described. The next chapter focuses on the experimental techniques and instrumentation needed to measure infrared absorption spectra and Raman spectra. Symmetry is then discussed from the standpoint of the spectroscopist. The following chapters explore the vibrational origin of group frequencies, with an emphasis on mechanical effects; spectra-structure correlations; and the spectra of compounds such as ethers, alcohols, and phenols. The final chapter demonstrates how the frequencies and forms of a nonlinear molecule's normal modes of vibration may be calculated mathematically. This monograph will be a useful resource for spectroscopists and physical scientists.
Download or read book Catalog of Selected Infrared Absorption Spectrograms written by and published by . This book was released on 1983 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Spectroscopic Properties of Inorganic and Organometallic Compounds written by Jack Yarwood and published by Royal Society of Chemistry. This book was released on 2013-05-24 with total page 167 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spectroscopic Properties of Inorganic and Organometallic Compounds: Techniques, Materials and Applications provides a unique source of information in an important area of chemistry. Since Volume 40 the nature and ethos of this series have been altered to reflect a change of emphasis towards 'Techniques, Materials and Applications'. Researchers will now find up-to-date critical reviews which provide in-depth analyses of the leading papers in the field, with authors commenting of the quality and value of the work in a wider context. Focus areas will include structure-function relationships, photochemistry and spectroscopy of inorganic complexes, and catalysis; materials such as ceramics, cements, pigments, glasses and corrosion products; techniques such as advanced laser spectroscopy and theoretical methods.
Download or read book U S Government Research Reports written by and published by . This book was released on 1962 with total page 944 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Encyclopedia of Analytical Chemistry written by and published by Wiley. This book was released on 2000-12-19 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The highly acclaimed Encyclopedia of Analytical Chemistry provides a much needed professional level reference work for the 21st Century. Encyclopedia of Analytical Chemistry is the most comprehensive analytical chemistry reference available, covering all aspects from theory and instrumentation through applications and techniques. The chemistry and techniques are described as performed in the laboratory (environmental, clinical, QC, research, university), in the field or by remote sensing. The level of detail is similar to that of a lab protocol and together with the cited references, will support the analysis of complex inorganic, organic and biological structures by academic and industrial researchers. Encyclopedia of Analytical Chemistry also enables preparation of procedures, protocols and "cookbooks" by managers and staff of laboratories. Encyclopedia of Analytical Chemistry comprises over 600 articles, arranged alphabetically by topic, in approximately 14000 pages, in 15 volumes. Features: * Outstanding authorship and the highest calibre editors * Excellence of peer-review * Article Summaries * Over 6500 illustrations, many in colour * Extensive cross-referencing to facilitate navigation between articles * Extensive bibliographies with up-to-date references Encyclopedia of Analytical Chemistry is the essential cross-disciplinary reference work for all analytical chemists in academia and industry. All fields of chemical research are covered: analytical, organic, physical, polymer, inorganic biomedical, environmental, pharmaceutical, industrial, petroleum, forensics and food science.
Download or read book Infrared Spectroscopy in Conservation Science written by Michele R. Derrick and published by Getty Publications. This book was released on 2000-03-16 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides practical information on the use of infrared (IR) spectroscopy for the analysis of materials found in cultural objects. Designed for scientists and students in the fields of archaeology, art conservation, microscopy, forensics, chemistry, and optics, the book discusses techniques for examining the microscopic amounts of complex, aged components in objects such as paintings, sculptures, and archaeological fragments. Chapters include the history of infrared spectroscopy, the basic parameters of infrared absorption theory, IR instrumentation, analysis methods, sample collection and preparation, and spectra interpretation. The authors cite several case studies, such as examinations of Chumash Indian paints and the Dead Sea Scrolls. The Institute’s Tools for Conservation series provides practical scientific procedures and methodologies for the practice of conservation. The series is specifically directed to conservation scientists, conservators, and technical experts in related fields.
Download or read book Air Force Research Resum s written by and published by . This book was released on with total page 854 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Review of the Air Force Materials Research and Development Program written by Junie J. Banks and published by . This book was released on 1962 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: These reports cover basic and applied research in the materials area being conducted by the Metals and Ceramics, Nonmetallic Materials, Physics, Manufacturing Technology and Applications Laboratories of the Directorate of Materials and Processes.
