Download or read book Structural and Magnetic Properties of Some Mono and Polynuclear Transition metal Schiff base Complexes written by Thitinant Thanyasiri and published by . This book was released on 1988 with total page 800 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Magnetic and Spectral Properties of Some Mono and Polynuclear Transition Metal Complexes written by John Keith Porter and published by . This book was released on 1971 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Structural and Electronic Effects on the Magnetic Exchange Properties of Polynuclear Transition Metal 1 3 5 triketonates Synthesis and Magnetic Properties of Some Macrocyclic Schiff Base Derivatives written by John W. Guthrie and published by . This book was released on 1985 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Structural and Biological Applications of Schiff Base Metal Complexes written by Pallavi Jain and published by CRC Press. This book was released on 2023-05-31 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: Coordination compounds have been well-known for their wide variety of applications for over a century, as well as enhancing the researcher’s interest and concern in evaluating their action mechanism. It is certainly one of the most intensely discussed research topics. Coordination compounds involve different metal-ion-ligand phenomenon. The involved metal ions play a significant role in structural association and functioning of several processes in the genetic and metabolism system. In recent years, Schiff base ligands have gained significant interest and received a keen interest of many researchers. Schiff’s base ligands have been recognized to hold a wide variety of biological and medicinal activities due to the presence of donor atoms. They have proved exceptional pharmalogical actions such as antimicrobial, anti-tuberclosis, antiplatelet, antidiabetic, antiarthritis, antioxidant, anti-inflammatory, anticancer, antiviral, antimalarial, and analgesic. These biologically active Schiff base ligands have also been shown to inhibit enzyme mobilization and, when bound to a metal ion, exhibit enhanced biological activity, making them useful in a number of fields. As a result, metal complexes of Schiff base ligands are gaining popularity due to their unique properties and functionalities. Schiff base complex-based research for educational and industrial purposes is booming, and the number of publications is gradually increasing. Despite these interests, there is currently no detailed book on Schiff base metal complexes that covers the structures, biological activities, and other non-biological perspectives. This book delves into the structures of Schiff base metal complexes, which are critical in assessing the biological viability of any complex. It also highlights their biological significance in pharma and drug discovery like antibacterial, antifungal, anticancer, anti-inflammatory, anti-arthritis, anti-diabetic, antioxidants, anti-proliferative, antitumor, anticancer, antiviral. The fundamentals of metal complexes are described, as well as an up-to-date outline of developments in synthesis, characterization methods, properties- chemical, thermal, optical, structural, and applications. This book also discusses the other applications of Schiff base metal complexes: as sensor (luminescent, electrochemical, and biosensor), as pigments in dying and paint industries, as photocatalyst to improve the degradation rate. Features : This book would be useful for academia, researchers and engineers working in the area of Schiff base and their metal complexes. This book will give an in-depth account of the properties of Schiff base and their metal complexes. This book will discuss the details of synthesis methods for Schiff base and their metal complexes. This book will cover emerging trends in the use of Schiff base metal complexes in the industry. This book will provide an overview of the wider biological applications of Schiff base metal complexes

Download or read book Synthesis and Characterization of Some Schiff Base Metal Complexes written by Lili Wang and published by . This book was released on 2006 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: "One Schiff base ligand, bis(N,N-2-hyroxypropylenediaminesalicylaldimine), and its metal complexes were synthesized and characterized in this research. The synthesis was achieved by the condensation of salicylaldehyde with the amine group of 1,3- diamino-2-propanol in methanol. The mononuclear and dinuclear complexes from Schiff base with tradition metals Cu(Il) and Ni(II) were prepared by refluxing in ethanol. Detailed structural characterization of the ligand and its complexes was performed through NMR, magnetic susceptibility, UV-Vis spectroscopy, IR spectroscopy, and Xray structure analysis. At room temperature, the effective magnetic moment of mononuclear Cu(ll) complexes is 1.82BM confirming the presence of one unpaired electron. It is distorted tetrahedral geometry and paramagnetic. The mononuclear Ni(Il) complex possesses the effective magnetic moment, [mu][subscript eff], 3.18BM which shows the presence of two unpaired electrons and paramagnetism. The magnetic properties are explained with a modified Bleaney-Bowers equation. This suggests a strong antiferromagnetic exchange interaction between two copper atoms in a dimeric complex. It was found through the X-ray structure analysis that the mononuclear Cu(II) complex possesses the triclinic lattice type and P-1 space group. The unit cell parameters are a= 7 .823(4)Å; b = 9.688(5)Å; c = 10. 715( 6 )Å; [alpha]= 91.56(1)°; [Beta]= 104.40(1)° ; and [gamma]= 95.53(1)°. The crystal system of dinuclear Cu(II) complex is a monoclinic lattice type and P21/c space group. The unit cell parameters are a= 18.084(2)Å; b = 20.869(2)Å; c = 9.894(1)Å; and [Beta] = 95.437(2)°"--Abstract, leaf iii.

Download or read book Schiff Base Metal Complexes written by Pranjit Barman and published by John Wiley & Sons. This book was released on 2023-05-15 with total page 229 pages. Available in PDF, EPUB and Kindle. Book excerpt: Schiff Base Metal Complexes Schiff bases are compounds created from a condensed amino compounds, which frequently form complexes with metal ions. They have diverse applications in biology, catalysis, material science and industry. Understanding these compounds, their properties, and the available methods for synthesizing them is a key to unlocking industrial innovation. Schiff Base Metal Complexes provides a comprehensive overview of these compounds. It introduces the compounds and their properties before discussing their various synthesizing methods. A survey of existing and potential applications gives a complete picture and makes this a crucial guide for researchers and industry professionals looking to work with Schiff base complexes. Schiff Base Metal Complexes readers will also find: A systematic and organized structure designed to make information instantly accessible Detailed coverage of thermal synthesis, photochemical synthesis, and more Challenges with different methods described in order to help readers make the correct choice for their own work Schiff Base Metal Complexes is a useful reference for organic chemists, materials scientists, and researchers or industry professionals working with organometallics.

Download or read book The Synthesis Structure and Magnetism of Polynuclear D block Metal Schiff base Complexes written by Scott Cameron Courtney and published by . This book was released on 1999 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Magnetism and Coordination Chemistry of Mononuclear and Polynuclear Complexes of Copper II and Other First Row Transition Metal Ions Derived from Open chain Diazine N N Ligands written by Zhiqiang Xu and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis describes the structures and the magnetic properties of the first row transition metal complexes containing open-chain diazine (N-N) moieties. The purpose of the research is to establish a magnetostructural correlation involving the N-N single bond bridge and to investigate the coordination chemistry of open-chain diazine ligands to the first row transition metal ions. A relevant literature search is presented in Chapter 1. -- Chapter 1 describes a general introduction to magnetic exchange in polynuclear copper complexes and a general review of the coordination chemistry of diazine (N2) bridged complexes. In Chapter 2, seventeen dicopper(II) complexes with five open-chain diazine ligands (PAHAP, PMHAP, PHMAP, PHAAP and PYPZ) are reported, in which the two copper(II) centers are bridged by a single N-N bond only. The X-ray structures of one ligand and twelve dinuclear copper(II) complexes were determined. Changing the ligands, together with varying the coligands leads to a situation where the dihedral angle between the copper planes can be varied from 75° to 168.5°. For small angles (less than 80°) ferromagnetic coupling prevails, whereas at larger angles antiferromagnetic exchange is observed between the copper(II) centers. The exchange integrals (-2J) vary from -24.4 to 210 cm−1. This is associated with the degree of alignment of the nitrogen p orbitals in the diazine bridge, and is supported by molecular orbital calculations on the complexes and appropriate models. Chapter 3 deals mainly with dinuclear copper(II) complexes containing two ligands bridging two metal centers. The dinuclear copper(II) complexes containing two N-N single bonds have no or very weak coupling because of orbital orthogonality and the twisting of the two copper planes around these two N-N single bonds. A dicopper complex containing mixed diazine bridges (pyridazine/N-N) shows weak antiferromagnetic coupling, and since the diazine unit in the aromatic ring system bridges two copper centers in an orthogonal manner, this net antiferromagnetic coupling occurs only through the open-chain diazine bridge. A tetranuclear copper complex contains two pairs of dicopper(II) centers bridged orthogonally by two μ2-1,1-azide anions with each pair of copper(II) centers bridged by one N-N single bond and one μ2-1,1-azide with a 119° azide bridge angle. The dihedral angle about the N-N single bond is 54°, which indicates either no coupling or weak ferromagnetic coupling via such a bridge. Therefore, the strong antiferromagnetic coupling (-2J = 246 cm−1 ) occurs only through the μ2-1,1-azide bridges between each pair of copper(II) centers, giving the first genuine example contradicting the spin polarization mechanism associated with azide bridges. In Chapter 4, a series of spiral-like dinuclear complexes of Mn(II), Fe(II), Fe(III), Co(II), Co(III) and Ni(II) ions containing three N-N single bonds with a formula [L3M2].(X)n.mH2O (L = PAHAP, PZHPZ; X = CIO4 or NO3; n = 4, 6) and a seven-coordinate Fe(III) complex are discussed. The X-ray structures of six of these complexes have been determined. Variable-temperature magnetic properties, electrochemistry and spectra are discussed. Chapter 5 discusses the synthesis, structural and magnetic properties of some mononuclear and polynuclear first row transition metal complexes of the open-chain diazine ligands. The X-ray structures of eight complexes were determined. Two new coordination modes for open-chain diazine ligands have been found. In the last chapter, a general conclusion about coordination modes, magnetostructural correlations, etc. of the open-chain diazine complexes is made.

Download or read book Structural Predictions from the Magnetic Properties of Some Transition Metal Complexes written by Teresa Marie Rowe and published by . This book was released on 1985 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Synthesis Molecular Structure and Magnetic Properties of Some Binuclear Transition Metal Complexes with Exogenous Bridging Ligands written by Estelle Quijano and published by . This book was released on 1990 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Study of the Structure and Properties of Some Polynuclear Transition Metal Complexes written by Gary Roy Erickson and published by . This book was released on 1986 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Structural and Magnetic Properties of Some Transition Metal Compounds written by J. P. Attfield and published by . This book was released on 1987 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Synthesis Magnetic and Spectral Studies of Some Mono and Binuclear Transition Metal Complexes of Substituted 1 3 5 triketones and Their Schiff base Derivatives written by James Lonzo Mack and published by . This book was released on 1978 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Magnetic Properties of Polymeric and Polynuclear Transition Metal Complexes written by Richard Paul Eckberg and published by . This book was released on 1974 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Structures and Properties of Some Mononuclear and Binuclear Transition Metal Schiff Base Complexes written by Derek Peter Freyberg and published by . This book was released on 1977 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Preparation and Magnetic Properties of Some Mono and Polynuclear Iron III and Chromium III Complexes written by Paul Leonard Beaumont and published by . This book was released on 1974 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Transition Metal Complexes of Dehydroacetic Acid Schiff Bases written by Salunke Shridhar and published by LAP Lambert Academic Publishing. This book was released on 2015-05-25 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Schiff bases and their transition metal complexes possess novel structural features, interesting spectral and magnetic properties. They have attracted many researchers due to their importance in medicinal, agricultural, analytical, biological, catalysis, polymer science and industrial fields. Their studies have made tremendous advances in recent decades due to their industrial demand as antimicrobial, anticancer, antiseptic, antidiarrhoeal, antiulcer agents and they are also useful in LCD's, metal corrosion inhibition and myocardial perfusion imaging. The antimicrobial and insecticidal activity of Schiff bases increases with incorporation of the azomethine (>C=N) and arylazo (Ar-N=N-) groups in them. The dehydroacetic acid (DHA) is used to enhance vitamin-C stability, as food preservative and as strong antiseptic agent even at very low concentration (0.02-2.0%). The inclusion of DHA as arylazo Schiff base in transition metal complexes enhances their properties. To ascertain these potentialities and their applications, it is important to synthesize the arylazo Schiff base metal complexes derived from DHA and undertake their characterization studies.