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Author : David Mathias Dennison
Publisher :
ISBN 13 :
Total Pages : 32 pages
Book Rating : 4.3/5 (91 download)
Download or read book The Molecular Structure and Infra-red Spectrum of Methane ... written by David Mathias Dennison and published by . This book was released on 1925 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : David M. Dennison
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (459 download)
Download or read book The Molecular Structure and Infra-red Spectrum of Methane, by David M. Dennison written by David M. Dennison and published by . This book was released on 1925 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Shmuel Weiss
Publisher :
ISBN 13 :
Total Pages : 10 pages
Book Rating : 4.:/5 (227 download)
Download or read book The Pressure-induced Infrared Spectrum of Methane written by Shmuel Weiss and published by . This book was released on 1968 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: The pressure-induced infrared absorption spectrum of gaseous methane was observed using a 10m cell and 4-10 atm. pressure in the region 200-550 cm. The intensity can be expressed according to the relation: A(nu) = gamma(nu)(d sq), where A(nu) is the absorbance at frequency nu, and d is the gas density. The spectrum is interpreted in terms of rotational transitions in a pair of CH4 molecules possessing a transient dipole moment induced by the octopole moment of the molecule. (Author).
Author : Pierre-Richard Dahoo
Publisher : John Wiley & Sons
ISBN 13 : 1119865972
Total Pages : 322 pages
Book Rating : 4.1/5 (198 download)
Download or read book Infrared Spectroscopy of Symmetric and Spherical Top Molecules for Space Observation, Volume 2 written by Pierre-Richard Dahoo and published by John Wiley & Sons. This book was released on 2021-09-15 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book, Volume 4 in the series, is dedicated to the relationship between laboratory spectroscopy, recording ever-more-complex spectra using increasingly powerful instruments benefiting from the latest technology, and the development of observation using instruments that are embedded in mobile probes or nanosatellites. The theoretical models described in Volumes 1, 2 and 3 are used in this volume, applying the cumulant theorem in the mean-field theory framework to interpret the near and mid-infrared spectra of symmetric top molecules, such as ammonia (NH3) and spherical molecules, such as methane (CH4). These molecules can be isolated in their gaseous form or subjected to the environmental constraints of a nano-cage (a substitution site, clathrate, fullerene or zeolite) or surfaces. These methods are not only valuable in the fields of environmental sciences, planetology and astrophysics, but also fit into the framework of data processing and the concept of Big Data.
Author : A. Barnes
Publisher : Springer Science & Business Media
ISBN 13 : 9400985401
Total Pages : 602 pages
Book Rating : 4.4/5 (9 download)
Download or read book Matrix Isolation Spectroscopy written by A. Barnes and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 602 pages. Available in PDF, EPUB and Kindle. Book excerpt: The matrix isolation (MI) method has now been used for nearly thirty years. During this period it has been actively developed and the range of problems tackled greatly extended. Originally it was used for studies of transient species involv ing vibrational, electronic and ESR spectroscopy. Nowadays the study of transient species forms a comparatively small part of HI work since it has been amply demonstrated that very fruitful information can be obtained of the structure and interactions of stable molecules and their aggregates. In addition to the s~ectroscopic methods mentioned above the MI technique is nowadays a standard method in research based on vibrational relaxation, luminescence, Mossbauer, magnetic circular dichroism, pulsed NMR and photoelectron spectroscopy. The matrix isolation technique affords considerable advantages over more conventional methods in most applications of spectroscopy. Areas where the technique has been widely applied, or shows great potential, include: metal atom chemistry, and its relation to surface chemistry, high temperature inorganic species, transition metal complexes, interstellar species, free radicals and unstable molecules, conformational studies, molecular com plexes, and intermolecular forces.
Author : University of Michigan. Physical Laboratory
Publisher :
ISBN 13 :
Total Pages : 714 pages
Book Rating : 4.U/5 (183 download)
Download or read book Contributions from the Physical Laboratory of the University of Michigan written by University of Michigan. Physical Laboratory and published by . This book was released on 1921 with total page 714 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Aaron Goldman
Publisher : CRC Press
ISBN 13 : 1351363050
Total Pages : 266 pages
Book Rating : 4.3/5 (513 download)
Download or read book Handbook of High Resolution Infrared Laboratory Spectra of Atmospheric Interest (1981) written by Aaron Goldman and published by CRC Press. This book was released on 2017-11-22 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt: The handbook presents spectra to be utilized for the detection and measurement of new constituents in the earth's atmosphere and to obtain data for common minor species with large gas amounts in the absorption cell (such as CH/sub 4/ and N/sub 2/O). These results can be applied in the identification of absorption features in atmospheric spectra determined over long atmospheric paths. The spectra were recorded with Fourier Transform Spectrometers which are more precise than grating spectrometers. Each molecule spectrum was plotted on two scales: a condensed scale covering the range from 75 to 300/cm in one frame, and an expanded view covering 20 or 10/cm per frame. Each plot contains the name of the molecule, chemical formula, the gas pressure, cell length, and estimated resolution of the spectrum.
Author :
Publisher :
ISBN 13 :
Total Pages : 828 pages
Book Rating : 4.F/5 ( download)
Download or read book NBS Special Publication written by and published by . This book was released on 1968 with total page 828 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Henry A. Bent
Publisher : Trafford Publishing
ISBN 13 : 1490713948
Total Pages : 309 pages
Book Rating : 4.4/5 (97 download)
Download or read book Molecules and the Chemical Bond written by Henry A. Bent and published by Trafford Publishing. This book was released on 2013 with total page 309 pages. Available in PDF, EPUB and Kindle. Book excerpt: MOLECULES and the Chemical Bond is about understanding Schrödinger's equation, for chemical systems. In his famous Lectures on Physics, Richard Feynman quotes Paul Dirac on what it means to understand an equation. "I understand what an equation means," said Dirac, "if I have a way of figuring out the characteristics of its solutions without actually solving it." That hits the nail on the head! It's precisely what Conceptual Valence Bond Theory does for Schrödinger's equation. A "physical understanding" of an equation, adds Feynman, "is a completely unmathematical, imprecise, and inexact thing, but absolutely necessary for a physicist." It unfolds in MCB in two stages, described by Newton as a stage of "Analysis" (a union of observations and inductions) and a stage of "Synthesis" (use of inductions, accepted as first principles, to explain observations). The book's chief vehicle for creating an intuitive understanding of solutions of Schrödinger's equation is the world's largest - and to the author's knowledge, virtually only - library of line drawings of exclusive orbital models of chemical species' electron density profiles. By focussing attention on fundamental physical principles and by avoiding use of atomic orbitals and, thereby, mathematical complexities associated with Schrödinger's equation (the only source of atomic orbitals), the book's essays provide a scientifically sound, student-friendly introduction to modern valence theory. Repetition of fundamental ideas, here and there, is intended to make individual essays understandable and interesting, each by itself, so that readers may examine them in any order, in leisurely walks, so to speak, in the big garden that is valence theory, picking bouquets to their liking.
Author : Jean Paul Cooley
Publisher :
ISBN 13 :
Total Pages : 154 pages
Book Rating : 4.3/5 (91 download)
Download or read book THE INFRA-RED ABSORPTION BANDS OF METHANE. written by Jean Paul Cooley and published by . This book was released on 1923 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 484 pages
Book Rating : 4.:/5 (38 download)
Download or read book The Astrophysical Journal written by and published by . This book was released on 1925 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Letters to the Editor" issued as Part 2 of each number and separately paged from v. 148, 1967.
Author : National Academy of Sciences (U.S.)
Publisher :
ISBN 13 :
Total Pages : 1002 pages
Book Rating : 4.3/5 ( download)
Download or read book Proceedings of the National Academy of Sciences of the United States of America written by National Academy of Sciences (U.S.) and published by . This book was released on 1928 with total page 1002 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Proceedings of the National Academy of Sciences (PNAS) publishes research reports, commentaries, reviews, colloquium papers, and actions of the Academy. PNAS is a multidisciplinary journal that covers the biological, physical, and social sciences.
Author : Brian C. Smith
Publisher : CRC Press
ISBN 13 : 1351438379
Total Pages : 286 pages
Book Rating : 4.3/5 (514 download)
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.
Author :
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (946 download)
Download or read book High Resolution Infrared Absorption Spectra of Methane Molecules Isolated in Solid Parahydrogen Matrices written by and published by . This book was released on 1999 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: We present high resolution (approx. = 0.01/cm) infrared absorption spectra of the V4 band of methane doped parahydrogen (CH4/pH2) solids produced by two different techniques: gas condensation in an enclosed cell at T approx. =8 K, and rapid vapor deposition onto a T approx. =2 K substrate in vacuum. The spectrum of the rapid vapor deposited solid contains a novel progression of single peaks with 5/cm spacing, superimposed over the known spectrum of CH4 molecules trapped in sites of D3h symmetry in hexagonal close-packed (hcp) solid pH2. New theoretical calculations of the rovibrational transitions of a tetrahedral molecule in an external field of Oh symmetry permit the assignment of this new progression to CH4 molecules trapped in crystalline face centered cubic (fcc) regions of the pH2 solid. Annealing of the rapid vapor deposited samples to T approx. =5 K decreases the intensities of the CH4/pH2(fcc) absorptions, and results in intensity changes for parallel and perpendicularly polarized CH4/pH2(hcp) transitions. We discuss these phenomena, and the narrow (0.01 to 0.04/cm FWHM) absorption linewidths, in terms of the microscopic structure of the pH2 hosts.
Author : University of Michigan. Department of Physics
Publisher :
ISBN 13 :
Total Pages : 906 pages
Book Rating : 4.3/5 (91 download)
Download or read book Papers written by University of Michigan. Department of Physics and published by . This book was released on 1925 with total page 906 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 1508 pages
Book Rating : 4.U/5 (183 download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1969 with total page 1508 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 1356 pages
Book Rating : 4.3/5 (91 download)
Download or read book British Chemical Abstracts written by and published by . This book was released on 1926 with total page 1356 pages. Available in PDF, EPUB and Kindle. Book excerpt:
