Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Ultrafast Fluorescence Studies Of Excited State Dynamics Of A Few Organic Chromophores In Solution
Download Ultrafast Fluorescence Studies Of Excited State Dynamics Of A Few Organic Chromophores In Solution full books in PDF, epub, and Kindle. Read online Ultrafast Fluorescence Studies Of Excited State Dynamics Of A Few Organic Chromophores In Solution ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Ultrafast Fluorescence Studies of Excited-state Dynamics of a Few Organic Chromophores in Solution by : Emile van Veldhoven
Download or read book Ultrafast Fluorescence Studies of Excited-state Dynamics of a Few Organic Chromophores in Solution written by Emile van Veldhoven and published by . This book was released on 2003 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Ultrafast Excited-state Dynamics of Fluorescent Proteins by : Paul Abbyad
Download or read book Ultrafast Excited-state Dynamics of Fluorescent Proteins written by Paul Abbyad and published by . This book was released on 2007 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Investigating Ultrafast Photoexcited Dynamics of Organic Chromophores by : Pratip Chakraborty
Download or read book Investigating Ultrafast Photoexcited Dynamics of Organic Chromophores written by Pratip Chakraborty and published by . This book was released on 2020 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt: Light or photons can excite electrons in a molecule, leading to creation of electronically excited states. Such processes are ubiquitous in nature, such as, vision, photo-protection of DNA/RNA nucleobases, light harvesting, energy and charger transfer etc. This photoexcitation induces nuclear motion on the excited states, leading the excess energy to dissipate either non-radiatively via internal conversion back down to the ground state, isomerization, and dissociation, or radiatively via fluorescence and phosphorescence. In this dissertation, we investigate the non-radiative processes in organic chromophores that ensue in an ultrafast manner, mediated via conical intersections (CoIn). Description of such excited state processes generally require multi-reference treatment because of quasi-degeneracy near CoIns. Hence, most insight about these processes is typically gained by constructing potential energy surface (PES) using multi-reference electronic structure methods along important reaction coordinates. Nonetheless, the aforementioned static treatment fails to provide any dynamical information, such as, excited state lifetime, state populations, branching ratio, quantum yield etc. In this dissertation, we have gone beyond the static treatment by undertaking computationally expensive non-adiabatic excited state molecular dynamics simulations employing trajectory surface hopping (TSH) methodology on PESs created on-the-fly using multi-reference electronic structure methods. This allows us to compare theoretical results to experimental observables, when possible, strengthening the explanations underlying those processes. Our goal is to examine the effect of structure, and of electronic structure methods on the excited state dynamics. We have examined the non-adiabatic excited state dynamics of cis,cis-1,3-cyclooctadiene (cc-COD), a cyclic diene, in an effort to systematically compare and contrast the dynamics of cc-COD to that of other well studied conjugated molecules. Such exploration is very significant, since the majority of the molecules involved in natural photoexcited processes, include an ethylenic double bond or alternating double bonds creating conjugation. Our calculations have revealed ultrafast sub-ps decay for cc-COD, and have illustrated that the internal conversion dynamics is facilitated by CoIns, dominated by twisting of one of the double bonds and pyramidalization of one of the carbons of that double bond, similar to trans-1,3-butadiene and unlike 1,3-cyclohexadiene (CHD). Our high-level electronic structure calculations have also explained the features in the experimental time-resolved photoelectron spectrum of cc-COD. Another molecule of biological importance, uracil, was also investigated using TSH simulations, by systematically increasing dynamical correlation. We have found that the inclusion of dynamical correlation for uracil leads to an almost barrierless PES on S2, leading to a faster decay and no population trap on this state. Uracil also contains a double bond and the simulations have revealed that the ultrafast relaxation is dominated by an ethylenic twist and pyramidalization of a carbon of that bond, increasing importance of such nuclear motion in photoexcited molecular dynamics. A comparison of the molecules studied have illustrated that the rigid molecules, such as uracil, CHD, have a very local CoIn seam space, whereas cc-COD, which is flexible having many low frequency degrees of freedom, has a non-local or extended CoIn seam space. Overall, the work performed in this dissertation, elucidates the significance of structure and conjugation, in the photoinduced coupled electron-nuclear dynamics in organic molecules.
Book Synopsis Ultrafast Excited-state Dynamics of Green Fluorescent Proteins and Fluorescein-antibody Complexes by : Xinghua Shi
Download or read book Ultrafast Excited-state Dynamics of Green Fluorescent Proteins and Fluorescein-antibody Complexes written by Xinghua Shi and published by . This book was released on 2007 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Ultrafast Fluorescence Studies of Excited-state Hydrogen Transfer Reactions in Solution by : Paulus Willem Toele
Download or read book Ultrafast Fluorescence Studies of Excited-state Hydrogen Transfer Reactions in Solution written by Paulus Willem Toele and published by . This book was released on 2005 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Organic Optoelectronic Materials by : Yongfang Li
Download or read book Organic Optoelectronic Materials written by Yongfang Li and published by Springer. This book was released on 2015-05-30 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume reviews the latest trends in organic optoelectronic materials. Each comprehensive chapter allows graduate students and newcomers to the field to grasp the basics, whilst also ensuring that they have the most up-to-date overview of the latest research. Topics include: organic conductors and semiconductors; conducting polymers and conjugated polymer semiconductors, as well as their applications in organic field-effect-transistors; organic light-emitting diodes; and organic photovoltaics and transparent conducting electrodes. The molecular structures, synthesis methods, physicochemical and optoelectronic properties of the organic optoelectronic materials are also introduced and described in detail. The authors also elucidate the structures and working mechanisms of organic optoelectronic devices and outline fundamental scientific problems and future research directions. This volume is invaluable to all those interested in organic optoelectronic materials.
Book Synopsis Conical Intersections: Electronic Structure, Dynamics & Spectroscopy by : Wolfgang Domcke
Download or read book Conical Intersections: Electronic Structure, Dynamics & Spectroscopy written by Wolfgang Domcke and published by World Scientific. This book was released on 2004-07-14 with total page 857 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is widely recognized nowadays that conical intersections of molecular potential-energy surfaces play a key mechanistic role in the spectroscopy of polyatomic molecules, photochemistry and chemical kinetics. This invaluable book presents a systematic exposition of the current state of knowledge about conical intersections, which has been elaborated in research papers scattered throughout the chemical physics literature.Section I of the book provides a comprehensive analysis of the electronic-structure aspects of conical intersections. Section II shows the importance of conical intersections in chemical reaction dynamics and gives an overview of the computational techniques employed to describe the dynamics at conical intersections. Finally, Section III deals with the role of conical intersections in the fields of molecular spectroscopy and laser control of chemical reaction dynamics.This book has been selected for coverage in:• CC / Physical, Chemical & Earth Sciences• Chemistry Citation Index(tm)• Index to Scientific Book Contents® (ISBC)
Book Synopsis Photochemical Reaction Dynamics of Organic Chromophores in Solution Investigated with Ultrafast Transient Absorption Spectroscopy by : Min-Hsien Kao
Download or read book Photochemical Reaction Dynamics of Organic Chromophores in Solution Investigated with Ultrafast Transient Absorption Spectroscopy written by Min-Hsien Kao and published by . This book was released on 2021 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hydrogen Bonding and Transfer in the Excited State by : Ke-Li Han
Download or read book Hydrogen Bonding and Transfer in the Excited State written by Ke-Li Han and published by John Wiley & Sons. This book was released on 2011-03-16 with total page 1229 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gives an extensive description of the state-of-the-art in research on excited-state hydrogen bonding and hydrogen transfer in recent years. Initial chapters present both the experimental and theoretical investigations on the excited-state hydrogen bonding structures and dynamics of many organic and biological chromophores. Following this, several chapters describe the influences of the excited-state hydrogen bonding on various photophysical processes and photochemical reactions, for example: hydrogen bonding effects on fluorescence emission behaviors and photoisomerization; the role of hydrogen bonding in photosynthetic water splitting; photoinduced electron transfer and solvation dynamics in room temperature ionic liquids; and hydrogen bonding barrier crossing dynamics at bio-mimicking surfaces. Finally, the book examines experimental and theoretical studies on the nature and control of excited-state hydrogen transfer in various systems. Hydrogen Bonding and Transfer in the Excited State is an essential overview of this increasingly important field of study, surveying the entire field over 2 volumes, 40 chapters and 1200 pages. It will find a place on the bookshelves of researchers in photochemistry, photobiology, photophysics, physical chemistry and chemical physics.
Book Synopsis CRC Handbook of Organic Photochemistry and Photobiology, Volumes 1 & 2 by : William M. Horspool
Download or read book CRC Handbook of Organic Photochemistry and Photobiology, Volumes 1 & 2 written by William M. Horspool and published by CRC Press. This book was released on 2003-09-29 with total page 2898 pages. Available in PDF, EPUB and Kindle. Book excerpt: The second edition of this best-selling handbook is bigger, more comprehensive, and now completely current. In addition to thorough updates to the discussions featured in the first edition, this edition includes 66 new chapters that reflect recent developments, new applications, and emerging areas of interest. Within the handbook's 145 critically r
Download or read book Fluorescence Spectroscopy written by and published by Academic Press. This book was released on 2011-09-06 with total page 403 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fluorescence spectroscopy is a type of electromagnetic spectroscopy, using a beam of light, which analyzes fluorescence from a sample. Given its extremely high sensitivity and selectivity, it is an important investigational tool in many areas including material sciences, analytical sciences, and across a broad range of chemical, biochemical and medical research. It has become an essential investigational technique allowing detailed, real-time observation of the structure and dynamics of intact biological systems. The pharmaceutical industry uses it heavily and it has become a dominating technique in biochemistry and molecular genetics. Keeps MIE buyers and online subscribers up-to-date with the latest research with this highly used technique Provides tried and tested techniques which eliminate searching through many different sources
Book Synopsis Ultrafast Fluorescence Spectroscopy Used as a Probe to Explore Excited State Photophysics of Biologically and Environmentally Relevant Systems by : Prasun Mukherjee
Download or read book Ultrafast Fluorescence Spectroscopy Used as a Probe to Explore Excited State Photophysics of Biologically and Environmentally Relevant Systems written by Prasun Mukherjee and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Molecular Reorientational Relaxation and Excited State Dynamics Probed by Time-resolved Fluorescence Spectroscopy by : Xin Tan
Download or read book Molecular Reorientational Relaxation and Excited State Dynamics Probed by Time-resolved Fluorescence Spectroscopy written by Xin Tan and published by . This book was released on 2001 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Photoinduced Molecular Dynamics in Solution by : Gianluca Levi
Download or read book Photoinduced Molecular Dynamics in Solution written by Gianluca Levi and published by Springer Nature. This book was released on 2019-09-03 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book explores novel computational strategies for simulating excess energy dissipation alongside transient structural changes in photoexcited molecules, and accompanying solvent rearrangements. It also demonstrates in detail the synergy between theoretical modelling and ultrafast experiments in unravelling various aspects of the reaction dynamics of solvated photocatalytic metal complexes. Transition metal complexes play an important role as photocatalysts in solar energy conversion, and the rational design of metal-based photocatalytic systems with improved efficiency hinges on the fundamental understanding of the mechanisms behind light-induced chemical reactions in solution. Theory and atomistic modelling hold the key to uncovering these ultrafast processes. Linking atomistic simulations and modern X-ray scattering experiments with femtosecond time resolution, the book highlights previously unexplored dynamical changes in molecules, and discusses the development of theoretical and computational frameworks capable of interpreting the underlying ultrafast phenomena.
Book Synopsis New Trends in Fluorescence Spectroscopy by : Bernard Valeur
Download or read book New Trends in Fluorescence Spectroscopy written by Bernard Valeur and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt: This first volume in the new Springer Series on Fluorescence brings together fundamental and applied research from this highly interdisciplinary and field, ranging from chemistry and physics to biology and medicine. Special attention is given to supramolecular systems, sensor applications, confocal microscopy and protein-protein interactions. This carefully edited collection of articles is an invaluable tool for practitioners and novices.
Book Synopsis Fluorescent Analogs of Biomolecular Building Blocks by : Marcus Wilhelmsson
Download or read book Fluorescent Analogs of Biomolecular Building Blocks written by Marcus Wilhelmsson and published by John Wiley & Sons. This book was released on 2016-04-04 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fluorescent Analogs of Biomolecular Building Blocks focuses on the design of fluorescent probes for the four major families of macromolecular building blocks. Compiling the expertise of multiple authors, this book moves from introductory chapters to an exploration of the design, synthesis, and implementation of new fluorescent analogues of biomolecular building blocks, including examples of small-molecule fluorophores and sensors that are part of biomolecular assemblies.
Book Synopsis Femtochemistry and Femtobiology by : Abderrazzak Douhal
Download or read book Femtochemistry and Femtobiology written by Abderrazzak Douhal and published by World Scientific. This book was released on 2002 with total page 854 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains important contributions from top international scientists on the-state-of-the-art of femtochemistry and femtobiology at the beginning of the new millennium. It consists of reviews and papers on ultrafast dynamics in molecular science.The coverage of topics highlights several important features of molecular science from the viewpoint of structure (space domain) and dynamics (time domain). First of all, the book presents the latest developments, such as experimental techniques for understanding ultrafast processes in gas, condensed and complex systems, including biological molecules, surfaces and nanostructures. At the same time it stresses the different ways to control the rates and pathways of reactive events in chemistry and biology. Particular emphasis is given to biological processes as an area where femtodynamics is becoming very useful for resolving the structural dynamics from techniques such as electron diffraction, and X-ray and IR spectroscopy. Finally, the latest developments in quantum control (in both theory and experiment) and the experimental pulse-shaping techniques are described.