Download or read book Laser Spectroscopy of Jet cooled Organic Molecules and Van Der Waals Clusters written by James Walter Hager and published by . This book was released on 1985 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Laser Spectroscopy of Some Jet cooled Organic Molecules written by Erko Jalviste and published by . This book was released on 1993 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook of Nanophysics written by Klaus D. Sattler and published by CRC Press. This book was released on 2010-09-17 with total page 912 pages. Available in PDF, EPUB and Kindle. Book excerpt: The field of nanoscience was pioneered in the 1980s with the groundbreaking research on clusters, which later led to the discovery of fullerenes. Handbook of Nanophysics: Clusters and Fullerenes focuses on the fundamental physics of these nanoscale materials and structures. Each peer-reviewed chapter contains a broad-based introduction and enhances
Download or read book Structures and Conformations of Non Rigid Molecules written by J. Laane and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 640 pages. Available in PDF, EPUB and Kindle. Book excerpt: From the beginnings of modern chemistry, molecular structure has been a lively area of research and speculation. For more than half a century spectroscopy and other methods have been available to characterize the structures and shapes of molecules, particularly those that are rigid. However, most molecules are at least to some degree non-rigid and this non-rigidity plays an important role in such diverse areas as biological activity, energy transfer, and chemical reactivity. In addition, the large-amplitude vibrations present in non-rigid molecules give rise to unusual low-energy vibrational level patterns which have a dramatic effect on the thermodynamic properties of these systems. Only in recent years has a coherent picture of the energetics and dynamics of the conformational changes inherent in non-rigid (and semi-rigid) molecules begun to emerge. Advances have been made in a number of different experimental areas: vibrational (infrared and Raman) spectroscopy, rotational (microwave) spectroscopy, electron diffraction, and, most recently, laser techniques probing both the ground and excited electronic states. Theoretically, the proliferation of powerful computers coupled with scientific insight has allowed both empirical and ab initio methods to increase our understanding of the forces responsible for the structures and energies of non-rigid systems. The development of theory (group theoretical methods and potential energy surfaces) to understand the unique characteristics of the spectra of these floppy molecules has also been necessary to reach our present level of understanding. The thirty chapters in this volume contributed by the key speakers at the Workshop are divided over the various areas. Both vibrational and rotational spectroscopy have been effective at determining the potential energy surfaces for non-rigid molecules, often in a complementary manner. Recent laser fluorescence work has extended these types of studies to electronic excited states. Electronic diffraction methods provide radial distribution functions from which both molecular structures and compositions of conformational mixtures can be found. Ab initio calculations have progressed substantially over the past few years, and, when carried out at a sufficiently high level, can accurately reproduce (or predict ahead of time) experimental findings. Much of the controversy of the ARW related to the question of when an ab initio is reliable. Since the computer programs are readily available, many poor calculations have been carried out. However, excellent results can be obtained from computations when properly done. A similar situation exists for experimental analyses. The complexities of non-rigid molecules are many, but major strides have been taken to understand their structures and conformational processes.
Download or read book Infrared Laser Absorption Spectroscopy of Jet cooled Biomolecules and Water Clusters written by Ryan Patrick McLaughlin and published by . This book was released on 1999 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Gas Phase IR Spectroscopy and Structure of Biological Molecules written by Anouk M. Rijs and published by Springer. This book was released on 2015-06-03 with total page 409 pages. Available in PDF, EPUB and Kindle. Book excerpt: The series Topics in Current Chemistry presents critical reviews of the present and future trends in modern chemical research. The scope of coverage is all areas of chemical science including the interfaces with related disciplines such as biology, medicine and materials science. The goal of each thematic volume is to give the non-specialist reader, whether in academia or industry, a comprehensive insight into an area where new research is emerging which is of interest to a larger scientific audience. Each review within the volume critically surveys one aspect of that topic and places it within the context of the volume as a whole. The most significant developments of the last 5 to 10 years are presented using selected examples to illustrate the principles discussed. The coverage is not intended to be an exhaustive summary of the field or include large quantities of data, but should rather be conceptual, concentrating on the methodological thinking that will allow the non-specialist reader to understand the information presented. Contributions also offer an outlook on potential future developments in the field. Review articles for the individual volumes are invited by the volume editors. Readership: research chemists at universities or in industry, graduate students.
Download or read book Application of Laser Spectroscopy to Structure and Dynamics of Small Molecular Systems written by Brian J. Bozlee and published by . This book was released on 1986 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt: A variety of laser spectroscopic methods are employed in this thesis research for studies of CF3NO, an interesting model photodissociative system, and for investigation of low energy rotations and vibrations of small molecules and low molecular weight clusters in free jet expansions. Nonradiative energy decay for electronically excited CF3NO is investigated in an argon matrix. By comparing the visible absorption spectrum with pulsed laser photoacoustic and fluorescence excitation spectra it is argued that all nonradiative decay processes are fast, thus eliminating the likelihood of transient separation of CF3 and NO photofragments in the matrix cage or appreciable decay through a low lying triplet state. No evidence is found for a "channel two" decay mechanism in the matrix in contrast to gas phase work of others. Upper state vibrational relaxation is seen to be exceedingly fast by consideration of fluorescence spectra, and the fluorescence quantum yield is estimated to be 0.015 from measured emission lifetimes. The photochemistry of CF3NO is investigated in gas phase studies using Coherent Anti-Stokes Raman Spectroscopy (CARS) to probe the nascent rotational populations of both the CF3 and NO photofragments. The frequency of the v1 fundamental, which has not been observed previously by any Raman technique, is established with more certainty than in the past. The experimental spectra are modeled adequately by calculations assuming a completely statistical distribution of rotational energies for both fragments. Upper state B and C constants are estimated for the CF3 species. Studies are also reported on the applicablility of photoacoustic Raman spectoscopy (PARS) and CARS to investigations of low frequency modes of simple molecules. The development of these methods for use in our labs in the low shift regime is discussed in some detail and the two techniques are compared and constrasted. CARS is employed to observe pure rotational transitions of molecules cooled in free jet expansions and to study the low frequency vibrations of small van der Waals clusters of jet cooled CO2.
Download or read book The Infrared Laser molecular Beam Spectroscopy of Weakly Bound Van Der Waals Clusters and Its Possible Applications written by Shao-Hui Tseng and published by . This book was released on 1993 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book American Doctoral Dissertations written by and published by . This book was released on 1999 with total page 848 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Free Jet Expansion Laser Spectroscopy of Van Der Waals Molecules Containing Ne and Br Subscript 2 written by Barry A. Swartz and published by . This book was released on 1984 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook of High resolution Spectroscopy written by Martin Quack and published by John Wiley & Sons. This book was released on 2011-09-26 with total page 2236 pages. Available in PDF, EPUB and Kindle. Book excerpt: The field of High-Resolution Spectroscopy has been considerably extended and even redefined in some areas. Combining the knowledge of spectroscopy, laser technology, chemical computation, and experiments, Handbook of High-Resolution Spectroscopy provides a comprehensive survey of the whole field as it presents itself today, with emphasis on the recent developments. This essential handbook for advanced research students, graduate students, and researchers takes a systematic approach through the range of wavelengths and includes the latest advances in experiment and theory that will help and guide future applications. The first comprehensive survey in high-resolution molecular spectroscopy for over 15 years Brings together the knowledge of spectroscopy, laser technology, chemical computation and experiments Brings the reader up-to-date with the many advances that have been made in recent times Takes the reader through the range of wavelengths, covering all possible techniques such as Microwave Spectroscopy, Infrared Spectroscopy, Raman Spectroscopy, VIS, UV and VUV Combines theoretical, computational and experimental aspects Has numerous applications in a wide range of scientific domains Edited by two leaders in this field Provides an overview of rotational, vibration, electronic and photoelectron spectroscopy Volume 1 - Introduction: Fundamentals of Molecular Spectroscopy Volume 2 - High-Resolution Molecular Spectroscopy: Methods and Results Volume 3 - Special Methods & Applications
Download or read book Van Der Waals Molecules written by Joseph Andrew Blazy and published by . This book was released on 1981 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book High Resolution Laser Spectroscopy of Supersonic Jet cooled Molecules written by Brian W. Keelan and published by . This book was released on 1986 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Laser Spectroscopy of Van Der Waals Molecules written by Walter Peter Lapatovich and published by . This book was released on 1980 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Publications of the National Institute of Standards and Technology Catalog written by National Institute of Standards and Technology (U.S.) and published by . This book was released on 1990 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Abstracts of Papers written by and published by . This book was released on 1989 with total page 784 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Van der Waals Complexes in Supersonic Beams written by Jaroslaw Koperski and published by Wiley-VCH. This book was released on 2003-03-07 with total page 237 pages. Available in PDF, EPUB and Kindle. Book excerpt:
