Verdree VT, Su G, Pakhamov S, Nesterova I, Hammer RP, Soper SA (2006)
Synthesis and photophysical characterization of near-IR metallo-phthalocyanines
and other biopolymer conjugates, Abstract 2nd Southwest Regional Meeting of
Author: Özer Bekaroğlu
Publisher: Springer Science & Business Media
Phthalocyanines exhibit intriguing physic-chemical properties that render them important as a class of molecular functional materials. In addition to their tra- tional industrial applications as dyes and pigments, more recently their use as the organic semiconductors, photodynamictherapy medicines, non-linear optical ma- rials, catalysts for the photo oxidation, optical recording materials, and gas sensors attracts great research interests in these tetrapyrrole species. As manifested by the rapidly increasing number of related scienti?c publications in recent years, great progress has been made in the ?eld of advanced phthalocyaninematerials. Tremendous efforts have been paid toward the development of new phtha- cyanine molecular materials as well as toward their applications. Recent emphasis in both academic researches and technical ?eld has been put on the design and synthesis of novel phthalocyanine species, the structure-propertyrelationship, se- assembly properties, molecular electronics and opto-electronics, and dye-sensitized solarcells.Althoughexcellentreviewsandmonographsaboutphthalocyanineswere publishedseveralyearsago, it is time to providea surveyof a numberof newimp- tant developments in this fascinating area of phthalocyanine chemistry. The aim of this book is to bring both the academic and industrial researchers an easy way to the new progress of phthalocyanines made lately in related ?eld.
Phthalocyanines show intense absorption in the red region and their appearance
in the solid state ranges from dark blue to metallic bronze to green, depending on
the central metal, crystalline form and particle size. They are widely used as ...
Author: Ichiro Okura
Publisher: CRC Press
Photosensitization of Porphyrins and Phthalocyanines covers the scentific background to porphyrins and phthalocyanines, and applications of the compounds, especially for the application for photosensitization. It also has a review of advances in research and applications in this field.
Braun and Tcherniak synthesized phthalocyanines in 1907 (dark and insoluble
solid known as acid phthalocyanines). Figure 8 shows typical structure of phthalocyanines. Phthalocyanines are macrocycles composed by four isoindole
Author: Yusuf Yilmaz
Publisher: BoD – Books on Demand
Since their initial accidental synthesis and characterization in Scotland in the late 1920s, there has been a strong research focus on the use of phthalocyanines (Pcs) as dyes and pigments. In recent years, active research fields have included their use in electrophotography, photovoltaic and solar cells, molecular electronics, Langmuir-Blodgett films, photosensitizers, electrochromic display devices, gas sensors, liquid crystals, low-dimensional conductors, and optical disks. Phthalocyanines possess interesting biological, electronic, optical, catalytic, and structural properties. The main disadvantage is their insolubility in common solvents due to strong intermolecular - interactions. The solubility of phthalocyanines can be increased by various methods such as the formation of anionic and cationic species and both axial and peripheral substitution. Substitution at the nonperipheral and peripheral positions of the benzo moieties usually enhances their solubility in organic solvents. The most important advantage of phthalocyanines compared to porphyrins is that their Q bands lie at longer wavelengths and are considerably more intense. In this book, you will find synthesis and some applications of various phthalocyanine derivatives.
Phthalocyanines. on. Ag(100). Since its invention STM has been widely used to
study molecules on surfaces. It proved an ideal tool for this purpose, giving
access to both the real space adsorption geometry and electronic structure of ...
Author: Cornelius Krull
Publisher: Springer Science & Business Media
The application of molecules in technological devices hinges on the proper understanding of their behavior on metallic electrodes or substrates. The intrinsic molecular electronic and magnetic properties are modified at a metallic interface, and greatly depend on the atomic configuration of the molecule-metal bond. This poses certain problems, such as the lack of reproducibility in the transport properties of molecular junctions, but also offers the possibility to induce new charge and spin configurations that are only present at the interface. The results presented in this thesis address this issue, providing a comprehensive overview of the influence of molecule-metal and molecule-molecule interactions on the electronic and magnetic properties of molecules adsorbed on metallic substrates. Using metal-phthalocyanines (MePc), a commonly used metal-organic complex as a model system, each chapter explores different aspects of the interaction with silver surfaces: the local adsorption geometry, self-assembly, the modifications of the electronic and magnetic characteristics due to hybridization and charge transfer, and finally the manipulation of molecular charge and spin states by electron doping using alkali atoms moved with the STM tip.
Phthalocyanines Properties and Applications Edited by C.C. Leznoff A.B.P. Lever This volume, which includes 13 critical reviews of the fundamental, synthetic, biological, and applied chemistry of the phthalocyanine derivatives, completes ...
Author: C. C. Leznoff
Phthalocyanines Properties and Applications Edited by C.C. Leznoff A.B.P. Lever This volume, which includes 13 critical reviews of the fundamental, synthetic, biological, and applied chemistry of the phthalocyanine derivatives, completes the Phthalocyanine series. Together, Volumes 1 through 4 cover a broad spectrum of the physical and chemical aspects of the phthalocyanines and related compounds. From the Reviews of the Series "We are very favorably impressed with this book, and will not hesitate to add it to our libraries as an extremely valuable source book." -Photochemistry and Photobiology ". a valuable resource on the current state of phthalocyanine science and technology." -Journal of the American Chemical Society ". strongly recommended for chemists. it provides highly readable descriptions in basic areas of research." -Physics in Canada ". stimulating for industrial, medical, and academic researchers." -Chemical Engineering World ". a must for those who are in the field of pure or applied phthalocyanine research or interested in entering the field." -Spectrochimica Acta
Science of Synthesis provides a critical review of the synthetic methodology developed from the early 1800s to date for the entire field of organic and organometallic chemistry. As the only resource providing full-text descriptions of organic transformations and synthetic methods as well as experimental procedures, Science of Synthesis is therefore a unique chemical information tool. Over 1000 world-renowned experts have chosen the most important molecular transformations for a class of organic compounds and elaborated on their scope and limitations. The systematic, logical and consistent organization of the synthetic methods for each functional group enables users to quickly find out which methods are useful for a particular synthesis and which are not. Effective and practical experimental procedures can be implemented quickly and easily in the lab.// The content of this e-book was originally published in December 2007.
Phthalocyanines NEIL B. McKEOWN Department of Chemistry, University of
Manchester, Manchester M139PL, UK | Introduction . ... Method II: Metal-Free Phthalocyanine from Phthalonitrile by Subsequent Removal of Labile Metal lons .
Author: Karl Kadish
The Porphyrin Handbook, Volume 15: Phthalocyanines: Synthesis 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 importance of compounds such as heme and chlorophyll that play vital roles in the biological systems responsible for the transportation of oxygen to cells in the body. This text then explores the different methods used for the preparation of phthalocyanine and its metallated derivatives. Other chapters consider the detailed survey of phthalocyanine formation, characterization, and purification. This book discusses as well the synthesis of low-symmetry phthalocyanines and related compounds. The final chapter deals with a survey of the structure, synthesis, and physiochemical properties of porphyrazines with annulated heterocycles. This book is a valuable resource for research scientists, engineers, and clinicians.
At that major international event , the Society of Porphyrins and Phthalocyanines
( SPP ) was created , and in early 2002 our fledgling SPP took over publication of
the Journal of Porphyrins and Phthalocyanines ( JPP ) from John Wiley & Sons ...
Author: Karl M. Kadish
Announcing the sequel to the first ten volumes of The Porphyrin Handbook, which provided an authoritative treatise on the porphryin system and dealt in fine detail with the synthesis, chemistry, spectroscopy, and applications of porphyrins. The ten latest volumes 11-20 address those major disciplinary areas not covered in the first, including biology and medical implications of porphyrin systems, the biosynthesis of porphyrins, chlorophylls and vitamin B12. Other areas include the multitude of genetically transmitted and drug induced diseases associated with errors in heme metabolism, the transformations of hemes into bile pigments, the organic syntheses of bilins, very recent work on phytochrome, and the pathways of degradation of chlorophyll in senescent plants. In addition, volumes 11-20 address every aspect of synthesis, chemistry, structure and spectroscopy of phthalocyanines which will appeal to scientists in fields ranging from mathematics through physics, chemistry and biochemistry, to biology and medicine. . By the same Editors as the successful first Porphyrin Handbook, published in 2000. . Consists of 61 chapters written by internationally recognized experts. . Clear, concise, and uniform presentation with many hundreds of figures, tables and structural formulae. Including volume indices and cumulative index.
ZIRCONIUM PHTHALOCYANINE AND HAFNIUM PHTHALOCYANINE
Diacetozirconium pc is made by heating the phthalonitrile and zirconium
tetrachloride at a mole ratio of 6 : 1 at 280 to 300°C for 15 min . The melt is cooled
and refluxed ...
Author: Valentine NenajdenkoPublish On: 2014-06-30
2 Fluorinated Phthalocyanines. ... 2.5.5 Low-Symmetry Phthalocyanines with
Three Perfluorinated Isoindole Units. ... 2.6 Influence of Fluorination on the
Electronic Structure and Spectral Properties of Phthalocyanines.
Author: Valentine Nenajdenko
This two-volume work combines comprehensive information on the chemistry of the fluorinated heterocycles. The material has been divided such that the first volume is dedicated to 5-membered fluorinated heterocycles and macrocycles, while the second volume combines data connected with the chemistry of fluorine containing 6-membered heterocycles. Both volumes will be of interest to synthetic organic chemists in general, and particularly for those colleagues working in the fields of heterocyclic-compound chemistry, materials chemistry, medicinal chemistry, and fluorine chemistry. All information is presented and classified clearly to be effective source for broad auditory of chemists. It will be interesting for scientists working in the field of inorganic and coordination chemistry. Fluorinated heterocycles are becoming increasingly important in many areas including the pharmaceutical industry, materials science and agriculture. The presence of fluorine can result in substantial functional changes in the biological as well as physicochemical properties of organic compounds. Incorporation of fluorine into drug molecules can greatly affect their physicochemical properties, such as bond strength, lipophilicity, bioavailability, conformation, electrostatic potential, dipole moment, pKa etc. as well as pharmacokinetic properties, such as tissue distribution, rate of metabolism and pharmacological properties, such as pharmacodynamics and toxicology.
A. Catalyst Deposition To obtain loadings of the phthalocyanine and porphyrin
materials on the substrate which approximated ... The phthalocyanines posed
somewhat of a problem , however , since they are insoluble ( or nearly so ) in
Master's Thesis from the year 2009 in the subject Chemistry - Materials Chemistry, course: M.Phil, language: English, abstract: This thesis is about Substituted Nickel Phthalocyanines and their preparation.
Author: Ali R A Shoukat
Master's Thesis from the year 2009 in the subject Chemistry - Materials Chemistry, course: M.Phil, language: English, abstract: This thesis is about Substituted Nickel Phthalocyanines and their preparation. Currently intensive research work is going on in producing phthalocyanine compounds, which have been useful for applications, such as important industrial dyes and pigments since their early syntheses at the beginning of last century. They have been employed as charge carriers in photocopiers and laser printers, as well as materials for optical storage in recent years. Many potential applications were expected for these molecular materials which have a high thermal and chemical stability, for instance as potential industrial catalysts, solar cell functioning materials, gas sensors, nonlinear optical limiting devices, as power leads and as molecular switches in nanotechnology, photodynamic therapy agents, antiscrapie treatments, antimycotic materials, antimicrobial agents, as corrosion inhibitors, as photoconductors, electrical conductors, photosensitizers, photovoltaic materials and as colorants for cyano toners. Except for few derivatives, soluble phthalocyanine complexes were prepared for dyes and colors, which were found to be impure. Use of pure phthalocyanines and their derivatives are very important in order to exploit the full potential of the coloring effects, thermal stability, photoconductivity, semi conducting, catalytic and various other physico chemical properties. The solubility of phthalocyanines can be increased either by changing the number and nature of the substitutents or by changing the central metal ion. Ligation of the central metal ion will also enhance the solubility. In the present investigation, it was planned to synthesize various metal phthalocyanines containing different substitutents at particular positions, so that symmetrically tetra substituted derivatives will be prepared and their structural investigations will be carried
G . Geiger , A . Geiger and X . Pfister ; U . S . Patent 3 , 029 , 249 , April 10 , 1962
This is a process for the production of phthalocyanines and metal phthalocyanines stable to separation . Uses : For coloring nitrocellulose lacquers
. ers Raw ...
The papers included in this issue of ECS Transactions were originally presented in the symposium ¿Physical, Analytical, and Spectro-Electrochemistry General Session¿, held during the PRiME 2008 joint international meeting of The Electrochemical Society and The Electrochemical Society of Japan, with the technical cosponsorship of the Japan Society of Applied Physics, the Korean Electrochemical Society, the Electrochemistry Division of the Royal Australian Chemical Institute, and the Chinese Society of Electrochemistry. This meeting was held in Honolulu, Hawaii, from October 12 to 17, 2008.
The Silicon-based phthalocyanine Pc4 (V.I Technologies), irilisation of blood
products and also the treatment of neopl: Figure 8. ... Phthalocyanines generally
have high absorption in the 675-750 nm range of the spectrum due to the
addition of ...
Author: Martin Warren
Publisher: Springer Science & Business Media
Excluding the biological polymers proteins, lipids and nucleic acids, modified tetrapyrroles are the biological molecules that have had the greatest impact on the evolution of life over the past 4 billion years. They are involved in a wide variety of fundamental processes that underpin central primary metabolism in all kingdoms of life, from photosynthesis to methanogenesis. Moreover, they bring colour into the world and it is for this reason that these compounds have been appropriately dubbed the ‘pigments of life’. To understand how and why these molecules have been so universally integrated into the life processes one has to appreciate the chemical properties of the tetrapyrrole scaffold and, where appropriate, the chemical characteristics of the centrally chelated metal ion. This book addresses why these molecules are employed in Nature, how they are made and what happens to them after they have finished their usefulness.