Infrared Spectroscopic Study of Matrix Isolated Molecules PDF Download
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Author:
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Languages : en
Pages :
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Author:
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Languages : en
Pages :
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Author: Christine Marie Wehlburg
Publisher:
ISBN:
Category :
Languages : en
Pages : 242
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Author: A. Barnes
Publisher: Springer Science & Business Media
ISBN: 9400985401
Category : Science
Languages : en
Pages : 602
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Book Description
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: Stephen Cradock
Publisher: CUP Archive
ISBN: 9780521207591
Category : Science
Languages : en
Pages : 160
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This 1975 book shows how and why matrix isolation developed and describes the necessary apparatus.
Author: Pierre-Richard Dahoo
Publisher: John Wiley & Sons
ISBN: 1786305682
Category : Science
Languages : en
Pages : 290
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This book is dedicated to the description and application of various different theoretical models to identify the near and mid-infrared spectra of symmetric and spherical top molecules in their gaseous form. Theoretical models based on the use of group theory are applied to rigid and non-rigid molecules, characterized by the phenomenon of tunneling and large amplitude motions. The calculation of vibration-rotation energy levels and the analysis of infrared transitions are applied to molecules of ammonia (NH3) and methane (CH4). The applications show how interactions at the molecular scale modify the near and mid-infrared spectra of isolated molecules, under the influence of the pressure of a nano-cage (the substitution site of a rare gas matrix, clathrate, fullerene or zeolite) or a surface, and allow us to identify the characteristics of the perturbing environment. This book provides valuable support for teachers and researchers but is also intended for engineering students, working research engineers and Masters and doctorate students.
Author: Nxumalo Lawrence Muziwani
Publisher:
ISBN:
Category : Molecular structure
Languages : en
Pages :
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Author: David Warren Ball
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 670
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Author: Youngwook Park
Publisher: Springer Nature
ISBN: 9811586934
Category : Science
Languages : en
Pages : 41
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This book describes the manipulation of molecular properties, such as orientation, structure, and dynamics, of small molecules and molecular clusters isolated in cold inert matrices by using unprecedentedly strong external electrostatic fields. Manipulation of molecules with controllable external forces is a dream of chemists. Molecules are inherently quantum-mechanical systems, control of which potentially can lead to quantum technology, such as quantum sensing and computing. This book demonstrates a combination of the ice film nanocapacitor method and the matrix isolation technique enabled the application of intense external dc electric fields across the isolated molecules and molecular clusters. Changes in molecular states induced by fields were monitored by means of vibrational spectroscopy. Also, the book presents manipulations of the inversion tunneling dynamics of ammonia molecule and the dislocation of acidic proton in hydrogen chloride–water complex. The book shows that the vibrational spectroscopy with the aid of unprecedentedly strong dc electric field can provide rich information on the electrostatic behaviors of molecules and molecular clusters, which underlie the understanding of intermolecular processes and molecular manipulation.
Author: Lester Andrews
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 448
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Book Description
Matrix-isolation spectroscopy, as a technique for studying unstable species, has had tremendous lasting powers. Since 1954, matrix-isolation has been able to assimilate new technology rather than being replaced by it. The matrix-isolation technique for producing and trapping new chemical species has been applied to an ever increasing range of chemical and physical problems since its inception. The last 12 years have seen a substantial number of new developments and applications of the matrix technique. The chapters in this book describe many of the contributions of matrix-isolation spectroscopy to chemistry and physics in the last decade, and as such predict the continued evolution of this technique over the next decade. Experimental techniques are generally closely related to the development of new apparatus, and each chapter has a section describing innovations in instrumentation such as the closed-cycle cryogenic cooler that has revolutionized the technique. In addition, each chapter describes many of the specialized methods used to prepare, trap and study particular new subject species. The volume will be an indispensable reference source for graduate students and other scientists new to this field, as well as chemists and physicists already involved in applied spectroscopy.
Author: Jonathan Thomas Lyon
Publisher:
ISBN:
Category :
Languages : en
Pages : 530
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