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Radiationless Energy Conversion Of Photoexcited Triplet State Of Organic Molecules Progress Report For May 1 1975 April 30 1977
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Book Synopsis Radiationless Energy Conversion of Photoexcited Triplet State of Organic Molecules. Progress Report for May 1, 1975--April 30, 1977 by :
Download or read book Radiationless Energy Conversion of Photoexcited Triplet State of Organic Molecules. Progress Report for May 1, 1975--April 30, 1977 written by and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: During the initial two years of our ERDA-supported research program we have attempted to define and understand the mechanisms active in the intersystem crossing processes of large polycyclic hydrocarbons and chlorophyll. To study these excited states energy conversion processes we have utilized optical detection of magnetic resonance spectroscopy, as developed in our laboratory, which is uniquely applicable to these molecular systems. Our results on polycyclic hydrocarbons have shown that an understanding of triplet state radiationless transitions in planar aromatic molecules can be obtained from a consideration of the symmetry-selected spin-orbit interactions and positions of available mixing states; this work provides a predictive model of triplet state nonradiative energy conversion with general applicability to aromatic systems. This treatment has been applied successfully to chlorophyll triplet state dynamics and provides a basis for the utilization of the triplet state of chlorophyll as a (nondestructive) spin probe into the makeup of more complex chlorophyll-containing systems in vitro and in vivo.
Book Synopsis ERDA Energy Research Abstracts by : United States. Energy Research and Development Administration
Download or read book ERDA Energy Research Abstracts written by United States. Energy Research and Development Administration and published by . This book was released on 1977 with total page 906 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1977 with total page 624 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Annual Index by :
Download or read book Government Reports Annual Index written by and published by . This book was released on 1978 with total page 1130 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1977-10 with total page 1236 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Photochemical Reactions of Complex Molecules in Condensed Phase. Progress Report, May 1, 1973--April 30, 1975 by :
Download or read book Photochemical Reactions of Complex Molecules in Condensed Phase. Progress Report, May 1, 1973--April 30, 1975 written by and published by . This book was released on 1975 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis (Appendix to COO--3162-48) Comprehensive Three Year Report, September 1, 1975-November 30, 1978 Including Annual Progress Report, December 1, 1977-November 30, 1978 by :
Download or read book (Appendix to COO--3162-48) Comprehensive Three Year Report, September 1, 1975-November 30, 1978 Including Annual Progress Report, December 1, 1977-November 30, 1978 written by and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Progress in biochemical reaction kinetics of photosynthetic energy conversion is reported. (PCS).
Book Synopsis Energies of Organic Compounds. Progress Report, September 1, 1976--June 30, 1977 by :
Download or read book Energies of Organic Compounds. Progress Report, September 1, 1976--June 30, 1977 written by and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Two automated reaction calorimetry systems are being constructed. The first, using a quartz thermometer probe, is essentially complete, and has been tested. The second uses a high precision digital voltmeter coupled to a microprocessor, and measures the resistance of a thermistor. The advantage of the second system lies in the small size of the temperature probe. The calorimeter systems have been used in measuring the heat of hydration of orthoesters which is a model for the steric effects in converting a tetrahedral carbon to trigonal. It has been used to measure the heat of adding trifluoroacetic acid to alkenes. This reaction is useful for the determination of the difference in heats of formation between isomeric alkenes, the heats of hydration of alkenes, and the heats of formation of secondary and tertiary alcohols. It has been used in measuring the heat evolved in adding acetic acid across strained carbon-carbon single bonds.
Book Synopsis Distribution of Energy in Bimolecular Chemiluminescent Reactions Involving Hydrogen Atoms. Progress Report, May 1, 1974--April 30, 1975 by :
Download or read book Distribution of Energy in Bimolecular Chemiluminescent Reactions Involving Hydrogen Atoms. Progress Report, May 1, 1974--April 30, 1975 written by and published by . This book was released on 1975 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Electronic Processes in Organic Semiconductors by : Anna Köhler
Download or read book Electronic Processes in Organic Semiconductors written by Anna Köhler and published by John Wiley & Sons. This book was released on 2015-06-08 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first advanced textbook to provide a useful introduction in a brief, coherent and comprehensive way, with a focus on the fundamentals. After having read this book, students will be prepared to understand any of the many multi-authored books available in this field that discuss a particular aspect in more detail, and should also benefit from any of the textbooks in photochemistry or spectroscopy that concentrate on a particular mechanism. Based on a successful and well-proven lecture course given by one of the authors for many years, the book is clearly structured into four sections: electronic structure of organic semiconductors, charged and excited states in organic semiconductors, electronic and optical properties of organic semiconductors, and fundamentals of organic semiconductor devices.
Download or read book Advanced EPR written by A.J. Hoff and published by Elsevier. This book was released on 2012-12-02 with total page 943 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advanced EPR: Applications in Biology and Biochemistry provides an up-to-date survey of existing EPR techniques and their applications in biology and biochemistry, and also provides a wealth of ideas for future developments in instrumentation and theory. The material is broadly organized into four parts. In the first part (chapters 1 to 6) pulsed EPR is discussed in detail. The second part (chapters 7 to 12) provides detailed discussions of a number of novel and experimental methods. The third part comprises seven chapters on double-resonance techniques, five on ENDOR and two on optically- and reaction yield-detected resonance. The final part is devoted to a thorough discussion of a number of new developments in the application of EPR to various biological and biochemical problems. Advanced EPR will interest biophysicists, physical biochemists, EPR spectroscopists and others who will value the extensive treatment of pulsed EPR techniques, the discussion of new developments in EPR instrumentation, and the integration of theory and experimental details as applied to problems in biology and biochemistry.
Book Synopsis Orbital Interaction Theory of Organic Chemistry by : Arvi Rauk
Download or read book Orbital Interaction Theory of Organic Chemistry written by Arvi Rauk and published by John Wiley & Sons. This book was released on 2004-04-07 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: A practical introduction to orbital interaction theory and its applications in modern organic chemistry Orbital interaction theory is a conceptual construct that lies at the very heart of modern organic chemistry. Comprising a comprehensive set of principles for explaining chemical reactivity, orbital interaction theory originates in a rigorous theory of electronic structure that also provides the basis for the powerful computational models and techniques with which chemists seek to describe and exploit the structures and thermodynamic and kinetic stabilities of molecules. Orbital Interaction Theory of Organic Chemistry, Second Edition introduces students to the fascinating world of organic chemistry at the mechanistic level with a thoroughly self-contained, well-integrated exposition of orbital interaction theory and its applications in modern organic chemistry. Professor Rauk reviews the concepts of symmetry and orbital theory, and explains reactivity in common functional groups and reactive intermediates in terms of orbital interaction theory. Aided by numerous examples and worked problems, he guides readers through basic chemistry concepts, such as acid and base strength, nucleophilicity, electrophilicity, and thermal stability (in terms of orbital interactions), and describes various computational models for describing those interactions. Updated and expanded, this latest edition of Orbital Interaction Theory of Organic Chemistry includes a completely new chapter on organometallics, increased coverage of density functional theory, many new application examples, and worked problems. The text is complemented by an interactive computer program that displays orbitals graphically and is available through a link to a Web site. Orbital Interaction Theory of Organic Chemistry, Second Edition is an excellent text for advanced-level undergraduate and graduate students in organic chemistry. It is also a valuable working resource for professional chemists seeking guidance on interpreting the quantitative data produced by modern computational chemists.
Book Synopsis Bioinorganic Photochemistry by : Grazyna Stochel
Download or read book Bioinorganic Photochemistry written by Grazyna Stochel and published by John Wiley & Sons. This book was released on 2009-06-10 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bioinorganic photochemistry is a rapidly evolving field integrating inorganic photochemistry with biological, medical and environmental sciences. The interactions of light with inorganic species in natural systems, and the applications in artificial systems of medical or environmental importance, form the basis of this challenging inter-disciplinary research area. Bioinorganic Photochemistry provides a comprehensive overview of the concepts and reactions fundamental to the field, illustrating important applications in biological, medical and environmental sciences. Topics covered include: Cosmic and environmental photochemistry Photochemistry of biologically relevant nanoassemblies Molecular aspects of photosynthesis Photoinduced electron transfer in biosystems Modern therapeutic strategies in photomedicine The book concludes with an outlook for the future of environmental protection, discussing emerging techniques in the field of pollution abatement, and the potential for bioinorganic photochemistry as a pathway to developing cheap, environmentally friendly sources of energy. Written as an authoritative guide for researchers involved in the development of bioinorganic photochemical processes, Bioinorganic Photochemistry is also accessible to scientists new to the field, and will be a key reference source for advanced courses in inorganic, and bioinorganic chemistry.
Book Synopsis Physics at Surfaces by : Andrew Zangwill
Download or read book Physics at Surfaces written by Andrew Zangwill and published by Cambridge University Press. This book was released on 1988-03-24 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt: Physics at Surfaces is a unique graduate-level introduction to the physics and chemical physics of solid surfaces, and atoms and molecules that interact with solid surfaces. A subject of keen scientific inquiry since the last century, surface physics emerged as an independent discipline only in the late 1960s as a result of the development of ultra-high vacuum technology and high speed digital computers. With these tools, reliable experimental measurements and theoretical calculations could at last be compared. Progress in the last decade has been truly striking. This volume provides a synthesis of the entire field of surface physics from the perspective of a modern condensed matter physicist with a healthy interest in chemical physics. The exposition intertwines experiment and theory whenever possible, although there is little detailed discussion of technique. This much-needed text will be invaluable to graduate students and researchers in condensed matter physics, physical chemistry and materials science working in, or taking graduate courses in, surface science.
Book Synopsis Supramolecular Photochemistry by : V. Ramamurthy
Download or read book Supramolecular Photochemistry written by V. Ramamurthy and published by John Wiley & Sons. This book was released on 2011-07-07 with total page 511 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the most updated, comprehensive collection of monographs on all aspects of photochemistry and photophysics related to natural and synthetic, inorganic, organic, and biological supramolecular systems. Supramolecular Photochemistry: Controlling Photochemical Processes addresses reactions in crystals, organized assemblies, monolayers, zeolites, clays, silica, micelles, polymers, dendrimers, organic hosts, supramolecular structures, organic glass, proteins and DNA, and applications of photosystems in confined media. This landmark publication describes the past, present, and future of this growing interdisciplinary area.
Book Synopsis Photosensitisation by : Giuliana Moreno
Download or read book Photosensitisation written by Giuliana Moreno and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt: Radiation induces a variety of chemical processes in biological tissues. This volume is a synthesis of up-to-the-minute reviews on such photochemical and photobiological sensitized reactions with particular relevance to photomedicine. The first part gives a description of experimental techniques for the study of the primary processes after radiation absorption by biological systems. It is followed by chapters on singlet oxygen and photomedicine, considering both phototherapy and photochemotherapy. These sections also discuss the next generation of potential photosensitizing drugs.
Book Synopsis Giant Resonances in Atoms, Molecules, and Solids by : J.P. Connerade
Download or read book Giant Resonances in Atoms, Molecules, and Solids written by J.P. Connerade and published by Springer. This book was released on 2013-12-20 with total page 557 pages. Available in PDF, EPUB and Kindle. Book excerpt: Often, a new area of science grows at the confines between recognised subject divisions, drawing upon techniques and intellectual perspectives from a diversity of fields. Such growth can remain unnoticed at first, until a characteristic fami ly of effects, described by appropriate key words, has developed, at which point a distinct subject is born. Such is very much the case with atomic 'giant resonances'. For a start, their name itself was borrowed from the field of nuclear collective resonances. The energy range in which they occur, at the juncture of the extreme UV and the soft X-rays, remains to this day a meeting point of two different experimental techniques: the grating and the crystal spectrometer. The impetus of synchrotron spectroscopy also played a large part in developing novel methods, described by many acronyms, which are used to study 'giant resonances' today. Finally, although we have described them as 'atomic' to differentiate them from their counterparts in Nuclear Physics, their occurrence on atomic sites does not inhibit their existence in molecules and solids. In fact, 'giant resonances' provide a new unifying theme, cutting accross some of the traditional scientific boundaries. After much separate development, the spectroscopies of the atom in various environments can meet afresh around this theme of common interest. Centrifugal barrier effects and 'giant resonances' proper emerged almost simultaneously in the late 1960's from two widely separated areas of physics, namely the study of free atoms and of condensed matter.
