Download or read book Resonance Raman Studies of Porphyrin Derivative Radicals written by Ching-Yao Lin and published by . This book was released on 1997 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Resonance Raman Study of Ferryl Porphyrins and Their pi cation Radicals written by Kazimierz Czarnecki and published by . This book was released on 1995 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Porphyrin Handbook Volume 4 written by Karl Kadish and published by Elsevier. This book was released on 2000 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: How I Feel books help children ages 2-6 recognize and identify their emotions and give them a vocabulary to describe what they are feeling. If children can name an emotion, they are on their way to understanding it. And when children can talk about what they are feeling, their parents will be better able to help them.Features: -- 8 x 8 24-page hardcover or -- softcover full-color picture book -- Each book includes an activity card and reusable stickers -- Question-answer format stimulates conversation between parent and child
Download or read book The Porphyrin Handbook written by Karl Kadish and published by Academic Press. This book was released on 2012-12-02 with total page 325 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Porphyrin Handbook, Volume 16: Phthalocyanines: Spectroscopic and Electrochemical Characterization provides information pertinent to every aspect of the chemistry, synthesis, spectroscopy, and structure of phthalocyanines. This book examines the biology and medical implications of porphyrin systems. Organized into five chapters, this volume begins with an overview of the photophysical properties of phthalocyanines that are important in relation to photosensitizers in photodynamic therapy, photoconductor, solar cells, and artificial photosynthesis. This text then describe how the data obtained from magnetic circular dichroism spectroscopy has provided the critical information required to describe the excited and ground state degeneracies of main group metallophthalocyanines complexes. Other chapters consider the electrocatalysis by electrodes modified with phthalocyanine sensors and complexes. This book discusses as well the properties of phthalocyanines and of their complexes. The final chapter deals with the experiments with organic pigment thin films. This book is a valuable resource for research scientists, engineers, and clinicians.
Download or read book Resonance Raman Studies and Vibrational Analysis of Ni II Porphyrins written by Xiao-yuan Li and published by . This book was released on 1988 with total page 840 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Porphyrin Handbook Volume 5 written by Karl Kadish and published by Academic Press. This book was released on 1999-10-15 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: Scientists in such fields as mathematics, physics, chemistry, biochemistry, biology, and medicine are currently involved in investigations of porphyrins and their numerous analogues and derivatives. Porphyrins are being used as platforms for the study of theoretical principles, as catalysts, as drugs, as electronic devices, and as spectroscopic probes in biology and medicine. The need for an up-to-date and authoritative treatise on the porphyrin system has met with universal acclaim amongst scientists and investigators.
Download or read book Metalloporphyrins in Catalytic Oxidations written by Roger A. Sheldon and published by CRC Press. This book was released on 1994-06-28 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume provides an in-depth overview of the chemistry of metalloporphyrins as oxidation catalysts in chemical and biological systems. It discusses practical techniques for the synthesis of metalloporphyrins and introduces useful methods of immobilization to improve their synthetic utility. Detailed discussions of underlying mechanistic features are provided.
Download or read book Resonance Raman Studies of Ligand Binding in Cobalt II picket Fence Porphyrin and Iron III Octaethylporphyrin written by Helen Catherine Mackin and published by . This book was released on 1981 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal of Research of the National Institute of Standards and Technology written by and published by . This book was released on 1991-10 with total page 690 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Porphyrin Handbook Volume 8 written by Karl Kadish and published by Elsevier. This book was released on 2000 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: Scientists in such fields as mathematics, physics, chemistry, biochemistry, biology, and medicine are currently involved in investigations of porphyrins and their numerous analogues and derivatives. Porphyrins are being used as platforms for the study of theoretical principles, as catalysts, as drugs, as electronic devices, and as spectroscopic probes in biology and medicine. The need for an up-to-date and authoritative treatise on the porphyrin system has met with universal acclaim amongst scientists and investigators.
Download or read book Applications of Infrared Raman and Resonance Raman Spectroscopy in Biochemistry written by Frank S. Parker and published by Springer Science & Business Media. This book was released on 1983-10-01 with total page 582 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Resonance Raman Spectroscopic Studies of Porphyrins and Hydroporphyrins written by Milton Evander Blackwood and published by . This book was released on 1997 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Resonance Raman studies of 1 10 phenanthroline radical anion and tris 2 2 bipyridine complexes of Cr III and Rh III written by Vicki Jean Malueg and published by . This book was released on 1981 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dissertation Abstracts International written by and published by . This book was released on 2004 with total page 788 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Resonance Raman and Time Resolved Spectroscopic Studies of Selected Chlorobenzophenone and Fluoroquinolones written by Wen Li and published by . This book was released on 2017-01-26 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation, "Resonance Raman and Time-resolved Spectroscopic Studies of Selected Chlorobenzophenone and Fluoroquinolones" by Wen, Li, 李闻, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. Abstract: Nanosecond time-resolved resonance Raman (ns-TR3) spectroscopy was used in this thesis to study the photoreduction reactions and the photochemistry of chloro-substituted benzophenone (ClBP) triplets. The 3-chlorobenzophenone (3-ClBP), 4-chlorobenzophenone (4-ClBP) and 4,4′-dichlorobenzophenone (4,4′-diClBP) triplets exhibit similar properties to the parent BP triplet. In isopropyl alcohol (IPA), the hydrogen abstraction reactions were observed for the 3-ClBP, 4-ClBP and 4,4′-diDlBP triplets. The diphenylketyl (DPK) radicals produced from the hydrogen abstraction reactions were observed and the recombination of the DPK and dimethylketyl radicals at the para-position was observed to form a light absorption transient (LAT) species. In MeCN: H2O/1:1 aqueous solutions, these DPK radicals were also observed but with a slower formation rate and the LAT species was produced by reaction with OH radicals. Density functional theory (DFT) calculations were employed to help identify the intermediates seen in the TR3 spectra and to help provide information about the vibrational motions of the molecules examined. The 2-Cl-DPK radical was also observed in the TR3 spectra obtained in an IPA solvent. However, the yield of the 2-Cl-DPK radical and the hydrogen abstraction rate was observed to be significantly lower than that of the other ClBP examined here under the same experimental conditions. The results DFT calculations show that the 2-chloro substituent changes the geometry and the electron density of the molecular orbitals of the BP triplet so that the 2-chloro substituent reduces the hydrogen abstraction ability the triplet state, which is different the hypothesis put forward by some previous studies that an electron-withdrawing group should increase the photoreduction ability of BP derivatives. Norfloxacin (NF) and Enoxacin (EN) are representative derivatives of Fluoroquinolones (FQ). There are four forms of NF and EN and these different forms can coexist in aqueous solutions. The UV-vis absorption and resonance Raman (RR) spectra of NF and EN have been obtained in neat acetonitrile (MeCN), MeCN: HClO4-H2O/1:1 (pH?1), MeCN: H2O/1:1 (pH?7.5) and MeCN: NaOH-H2O/1:1 (pH?13) solutions. The species observed in the spectra are assigned by comparison of the experimental spectra to the DFT calculated spectra and the vibrational modes are also described from the results of the DFT calculations. The absorption spectra of NF and EN obtained in MeCN: H2O/1:1 solutions show that some other species coexist with the tautomeric forms in the neutral aqueous solution. The RR spectra of the tautomeric forms of NF and EN were obtained by subtraction of the RR spectra of the neutral and anionic forms from the RR spectra of NF and EN in neutral aqueous solutions. The results suggest that NF and EN exists in neutral, anionic and tautomeric forms in neutral aqueous solutions. The time dependant DFT calculation results suggest that the fluorine atom has little contribution to the lowest unoccupied molecular orbitals of the different forms of NF and EN. DOI: 10.5353/th_b4807974 Subjects: Benzoates Organic compounds - Spectra Photochemistry Rama
Download or read book Time resolved Absorption and Resonance Raman Studies of Free Radicals in Model Biochemical Systems written by Yali Su and published by . This book was released on 1994 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Resonance Raman Studies of Oxygenated Metallo porphyrins written by Andrew John Schneider and published by . This book was released on 1990 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
