photophysical and photochemical properties of aromatic compounds pdf

Photophysical And Photochemical Properties Of Aromatic Compounds Pdf

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Aromaticity

Studies on the gas-phase two-photon photochemistry of aromatic compounds performed in the past 25 years were summarized. Data on the kinetics and mechanisms of primary two-photon photoexcitation, photodissociation, and photoionization of aromatic molecules were systematized, and the nature of electronically excited states responsible for these processes was determined.

Data on the reactivity of transient species and on the kinetics of elementary steps of laser UV photolysis bimolecular charge transfer and heavy particle transfer reactions and termolecular association and cluster ion formation reactions were presented. General prerequisites to the stability of aromatic compounds under non-steady-state conditions of UV photolysis were found in accordance with the electronic structure of reactants and with the donor—acceptor properties of mixture components.

This is a preview of subscription content, access via your institution. Rent this article via DeepDyve. Bagdasar'yan, Kh. Google Scholar. Potapov, V. Moscow , , vol. Antonov, V. Dietz, T. Boesl, U. Long, S. Matyuk, V. Daly, G. Abakumov, G. Akopyan, M. Fotoniki , , no. Pantos, E. Shigorin, D. Durant, J. Polevoi, A. Berger, M. Alfimov, M.

Robins, W. Brophy, J. Download references. Vorontsovo pole 10, Moscow, , Russia. Reprints and Permissions.

High Energy Chemistry 35, 90—99 Download citation. Issue Date : March Search SpringerLink Search. Abstract Studies on the gas-phase two-photon photochemistry of aromatic compounds performed in the past 25 years were summarized.

Vorontsovo pole 10, Moscow, , Russia V. Matyuk Authors V. Potapov View author publications. View author publications. Rights and permissions Reprints and Permissions. About this article Cite this article Potapov, V.

Aromaticity

Various single-ring aromatic compounds in water sources are of great concern due to its hazardous impact on the environment and human health. The fluorescence excitation-emission matrix EEMs spectrophotometry is a useful method to identify organic pollutants in water. This study provides a detailed insight into the fluorescence properties of the 14 selected toxic single-ring aromatic compounds by experimental and theoretical analysis. Aniline as a strong aromatic base has longer Em nm than alkyl, carbonyl, and halogens substituted benzenes. In this study the theoretical results are in line with experimental ones. The understanding of fluorescence and photophysical properties are of great importance in the identification of these compounds in the water. This is a preview of subscription content, access via your institution.

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Acetylchrysenes, as the key precursors to ChBs, were photochemically prepared from the corresponding acetylphenyl naphthylethenes by means of a modified photocyclization method. The absorption and emission spectra of the BF 2 DKs were obtained in chloroform and acetonitrile, and the quantum yields and lifetimes of the fluorescence were determined. Excimeric fluorescence from PyB was absent even in highly concentrated solution. Based on the Lippert—Mataga analysis of the absorption and fluorescence features, the photophysical properties of the ChBs were discussed in comparison with those of PyB. The fluorescence states of the studied BF 2 DKs are shown to be of a charge-transfer character.

Two-Photon Photochemical Reactions of Aromatic Compounds in the Gas Phase

Photophysical and Photochemical Properties of Aromatic Compounds. Jacob Malkin. Photophysical and Photochemical Properties of Aromatic Compounds is the first book to collect and classify all available quantitative data on the photochemistry and luminescence of aromatic compounds.

Studies on the gas-phase two-photon photochemistry of aromatic compounds performed in the past 25 years were summarized. Data on the kinetics and mechanisms of primary two-photon photoexcitation, photodissociation, and photoionization of aromatic molecules were systematized, and the nature of electronically excited states responsible for these processes was determined. Data on the reactivity of transient species and on the kinetics of elementary steps of laser UV photolysis bimolecular charge transfer and heavy particle transfer reactions and termolecular association and cluster ion formation reactions were presented.

Thalita F. Felipe C. Antonio 1. Anderson O. The photophysical and photochemical properties of phthalocyanine and naphthalocyanine with similar structures were studied in solution and with density-functional theory DFT computational method.

Two-Photon Photochemical Reactions of Aromatic Compounds in the Gas Phase

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In chemistry , aromaticity is a property of cyclic ring-shaped , planar flat structures with pi bonds in resonance those containing delocalized electrons that gives increased stability compared to other geometric or connective arrangements with the same set of atoms. Aromatic rings are very stable and do not break apart easily. Organic compounds that are not aromatic are classified as aliphatic compounds —they might be cyclic , but only aromatic rings have enhanced stability. Since the most common aromatic compounds are derivatives of benzene an aromatic hydrocarbon common in petroleum and its distillates , the word aromatic occasionally refers informally to benzene derivatives, and so it was first defined. Nevertheless, many non-benzene aromatic compounds exist. An aromatic functional group or other substituent is called an aryl group.

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3 Comments

  1. SofГ­a G.

    Photophysical and Photochemical Properties of Aromatic Compounds is the first book to collect and classify all available quantitative data on the photochemistry.

    08.04.2021 at 04:39 Reply
  2. Sweetterplimi

    Download PDF. Photophysical and Photochemical Properties of Aromatic Compounds is the first book to collect and classify all available quantitative data on the.

    14.04.2021 at 08:14 Reply
  3. Tabor L.

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    16.04.2021 at 08:03 Reply

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