Photochemical and Photophysical Studies of the Excited State Dynamics of Rhodium(III) Ammine Complexes PDF Download
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Author: Michael Alan Bergkamp
Publisher:
ISBN:
Category : Excited state chemistry
Languages : en
Pages : 308
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Book Description
Author: Michael Alan Bergkamp
Publisher:
ISBN:
Category : Excited state chemistry
Languages : en
Pages : 308
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Book Description
Author: John David Petersen
Publisher:
ISBN:
Category :
Languages : en
Pages : 460
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Book Description
Author:
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 548
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Book Description
Author: Mark E. Frink
Publisher:
ISBN:
Category :
Languages : en
Pages : 410
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Book Description
Author:
Publisher: Elsevier
ISBN: 0443237468
Category : Science
Languages : en
Pages : 330
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Book Description
Photochemistry and Photophysics of Earth-Abundant Transition Metal Complexes, Volume 83 in the Advances in Inorganic Chemistry series, highlights new advances in the field, with this new volume presenting interesting chapters on topics such as Radioluminescence of Copper(I) Clusters, Photophysics and Photochemistry of Chromium(III) Complexes (Molecular Rubies), Chromic behaviors of luminescent copper(I) complexes, Long-lived photoluminescence in group 4 metal complexes enabled by ligand-to-metal charge transfer, Photoactive MOFs for CO2 Activation utilizing Earth Abundant Metals, and more. Other sections cover Earth Abundant Metal Complexes for Optoelectronic Applications, Photoactive metal to ligand charge transfer excited states in 3d6 and 3d8 complexes, Ligand-to-metal charge-transfer excited states in d0 transition-metal complexes: Investigations into the photochemistry and photophysics of emissive titanocenes, Ultrafast dynamics in photoactive copper complexes from optical and Xray methods, and Photophysical properties of Ni(II) complexes and some copper(I) and zinc(II) complexes.
Author: University Microfilms International
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 858
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Author: Detlef Bahnemann
Publisher: Springer Nature
ISBN: 3030637131
Category : Science
Languages : en
Pages : 1914
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Book Description
The handbook comprehensively covers the field of inorganic photochemistry from the fundamentals to the main applications. The first section of the book describes the historical development of inorganic photochemistry, along with the fundamentals related to this multidisciplinary scientific field. The main experimental techniques employed in state-of-art studies are described in detail in the second section followed by a third section including theoretical investigations in the field. In the next three sections, the photophysical and photochemical properties of coordination compounds, supramolecular systems and inorganic semiconductors are summarized by experts on these materials. Finally, the application of photoactive inorganic compounds in key sectors of our society is highlighted. The sections cover applications in bioimaging and sensing, drug delivery and cancer therapy, solar energy conversion to electricity and fuels, organic synthesis, environmental remediation and optoelectronics among others. The chapters provide a concise overview of the main achievements in the recent years and highlight the challenges for future research. This handbook offers a unique compilation for practitioners of inorganic photochemistry in both industry and academia.
Author: Vasily Vorobyev
Publisher:
ISBN:
Category : Chemical bonds
Languages : en
Pages : 0
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Book Description
Ultrafast time-resolved pump-probe spectroscopy is an ultimate method for revealing fundamental photophysical and photochemical processes that govern the evolution of molecular systems. This method can be used to study organic, inorganic, biological molecules, as well as materials, unraveling the response of the sample to photoexcitation on very rapid timescales from femtoseconds (10-15 s) to picoseconds (10-12 s), which response frequently defines molecular properties and functions. Excited-state relaxation dynamics of a paradigm ruthenium nitrosyl complex, an important sub-class of nitric oxide carriers, is studied by means of ultrafast dispersed, broadband transient absorption spectroscopy. A computational extension is performed for related NO-releasers such as trans [RuNOL2Cl3] complexes which possess coordinated derivatives of biologically-relevant nicotinic and isonicotinic acids. Further studies to develop NO releasers, including those involving covalent linkage sites as isonicotinic/nicotinic derivatives for potential application as photochemical drugs, can rely on the findings in the ultrafast study of [RuNOCl5]2- dynamics as involvement of the triplet states rather than linkage isomers. Further, molecular properties of compounds related to the perovskite-based photovoltaic were computationally investigated. The electron-rich series of [I3]-, [TeI4]2-, and [BiI6]3- compounds were discussed in detail with a focus on three-center four-electron bond, which plays an important role in the compounds containing heavy-atoms. Excited-state relaxation dynamics in a polyhalogenated compound (CH2BrI) were investigated by means of computational dynamics on the earliest timescale of 100 fs following excitation of this molecule into two electronic states of spectroscopic interest. The computed pump probe spectra yield the time occurrence and spectral position of the absorption and stimulated emission transitions of the involved product states. The results are instrumental for the future ultrafast pump-probe experiments on CH2BrI and related polyhalogenated alkanes.
Author:
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 712
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Author: Lakshmy Kannadi Valloli
Publisher:
ISBN:
Category : Heterocyclic compounds
Languages : en
Pages : 0
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Book Description
Uncovering untrodden photochemical pathways often depends on manipulating reactive chromophores and channeling their excited state energy towards a desired chemical pathway. To alter an established photochemical reactivity, a clear comprehension of the dynamics of the excited states involved is quintessential. This thesis will present the development of a new class of photochemical reaction which was established by circumventing an established excited state process. We have designed chromophores in which a new type of photochemical reactivity was observed in excited 1,3-dicarbonyl compounds with activated alkene circumventing the traditional De Mayo pathway. In Chapter 2 we will discuss in detail regarding this newly observed reaction, which allows the conversion of completely planar reactants to a complex heterocyclic structure with multiple stereocenters in a single step. Photophysical investigations have enabled us to elucidate the mechanism of this new excited state process. To enhance the applicability of this newly discovered photoreaction, we have also evaluated the structural features that are crucial for controlling the excited state processes in Chapter 3. Our investigations have uncovered the role of cyclic dicarbonyl compounds in dictating the regiochemical outcome of this new photoreaction leading to the formation of complex heterocycles. By manipulating the reaction temperature in various solvents, the regioselectivity in different cyclic carbonyl compounds were evaluated allowing us to build complex heterocycles in a single step by considering the principle of green chemistry and atom economy. Based on detailed photophysical and spectroscopic studies, the mechanism for the observed difference in the regiochemistry of the photoproduct based on the ring size of the dicarbonyl compound employed for the photo transformation was uncovered. The final aspect of the thesis, Chapter 4 details a design to circumvent the known [2+2]-photodimerization in maleimides uncovering an unusual [4+2]-photodimerization reaction. The detailed mechanistic studies will be presented to rationalize this new reactivity.
