Download or read book Copper II Complexes with diketones and N donor Heterocyclic Ligands Crystal Structure Spectral Properties and Cytotoxic Activity written by and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Crystal Structure and Spectroscopic Properties of Copper II and Nickel II Complexes Containing the 2 2 bipyridylamine and 2 2 bipyridylamido Ligands written by Sujittra Aduldecha and published by . This book was released on 1989 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mixed Ligand Complex of Copper II Containing O N Donor Ligands written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In chemistry, a complex, also called a "coordination compound" or "metal complex", is a structure consisting of a central atom or molecule connected to surrounding atoms or molecules. Originally, a complex implied a reversible association of molecules, atoms, or ions through weak chemical bonds. As applied to coordination chemistry, this meaning has evolved. Some metal complexes are formed virtually irreversibly and many are bound together by bonds that are quite strong. Copper is a transition metal, which in the zero oxidation state has an electron configuration of [Ar]4s24p63d9. Copper is found in three different oxidation states: Cu(I), Cu(II), and Cu(III). Copper (I) atoms have 10 d electrons. Cu(I) complexes being d10 have no Jahn-Teller distortion. Cu (I) complexes are diamagnetic and typically colorless. If a Cu(I) complex is colored, the color is a result of a charge transfer band or an internal transition in a ligand. In the copper(II) oxidation state, the metal has 9 d electrons. Jahn- Teller distortion causes a splitting of eg and t2g orbitals. Most Cu(II) complexes are square planar for this reason. Usually observed in the electronic spectra of Cu(II) complexes is a single broad, poorly resolved band envelope. This envelope is typical of Cu(II) complexes in tetragonal complexes. These complexes are generally blue or green because of an absorption band in the 600-900 nm region of the spectrum. Reproducing complex biological reactivity within a simple synthetic molecule is a challenging endeavor with both intellectual and aesthetic goals. The sequence of examining biological reactivity, creating similar chemical architectures, and determining functional reaction conditions for model systems is a process that allows the biological code of reactivity to be deciphered. In the past years the report on the crystal structures of type 3 copper enzymes (e.g. catechol oxidase, hemocyanins, and tyrosinase), as too type 2 - type 3 copper enzymes (e.g. ascorbate oxida.

Download or read book Heterometallic Coordination Copper II Compounds written by Milan Melník and published by Nova Publishers. This book was released on 1999 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: Heterometallic Coordination Copper (Ii) Compounds - Classification & Analysis of Crystallographic & Structural Data

Download or read book Synthesis Spectral Characterization and Crystal Structure of Copper II Complexes of 2 hydroxyacetophenone N 4 phenyl Semicarbazone written by and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Crystal Structures and Properties of Copper II and Zinc II Complexes of beta diketones and Aromatic N oxides written by Ray Stuart Sager and published by . This book was released on 1968 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Synthesis Spectroscopic Properties Magnetic Properties and Crystal Structures of Polynuclear Copper II Complexes Containing the Oxyanion bridged Ligands written by and published by . This book was released on 2006 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Crystal Structure and Electronic Properties of Some Novel Copper I and Copper II Complexes Containing the 2 2 bipyridylamine and 2 2 bipyridylamido Ligands written by Pervaiz Akhtar and published by . This book was released on 1989 with total page 201 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Copper in N Heterocyclic Chemistry written by Ananya Srivastava and published by Elsevier. This book was released on 2020-11-13 with total page 506 pages. Available in PDF, EPUB and Kindle. Book excerpt: Copper in N-Heterocyclic Chemistry provides an overview of copper-catalyzed synthesis and functionalization of N-heterocyclic compounds, covering all recent developments in a way that is ideal for researchers and students working in the area of synthetic organic chemistry and medicinal chemistry. The book explores N-heterocyclic compounds as unique structural units in the development of natural products and pharmaceuticals, along with the remarkable progress made in the area of high atom economic strategies, and more recently, copper-catalyzed C-H activation and its applications in organic synthesis. Readers will find troubleshooting protocols, as well as the advantages and limitations of each method discussed. As copper catalysts show versatile chemical reactivity in many aspects, including their oxidation states 0–3 are accessible and their ability to facilitate bond formations due to their ability to serve as Lewis acids, oxidizing agents and catalysts, this book is an ideal resource on the topics explored. Discusses novel synthetic methods developed over the past decade for copper-catalyzed synthesis of N-heterocyclic compounds Covers the most recent methodologies adapted in synthetic chemistry for applications in natural products and pharmaceuticals Includes troubleshooting protocols, as well as the advantages and limitations of each method discussed in detail

Download or read book Structure Determination from Powder Diffraction Data written by William I. F. David and published by OUP Oxford. This book was released on 2002 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: Our understanding of the properties of materials, from drugs and proteins to catalysts and ceramics, is almost always based on structural information. This book describes the new developments in the realm of powder diffraction which make it possible for scientists to obtain such information even from polycrystalline materials. Written and edited by experts active in the field, and covering both the fundamental and applied aspects of structure solution from powder diffraction data, this book guides both novices and experienced practitioners alike through the maze of possibilities.

Download or read book I Cyclic Diamine Complexes of Nickel II and Copper II written by Mohammad Sakhawat Hussain and published by . This book was released on 1968 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Part I Crystal and Molecular Structure of CU II Complexes with Potential Sulfur donor Ligands written by Chia-Chih Ou and published by . This book was released on 1977 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Synthesis Structure and Properties of Copper II Complexes and Their Ligands written by Michael Andrew Oakley and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Copper II Hydrazone Complexes with Different Nuclearities and Geometries written by Abhay Kumar Patel and published by . This book was released on 2020 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt: New copper(II) hydrazone complexes with (Z)-2-(phenyl(2-(pyridin-2-yl)hydrazono)methyl)pyridine (L) were synthesized and characterized using various physicochemical methods. The geometry of complexes can be classified as mononuclear and binuclear. The complex 1 [Cu(L)Cl2] is mononuclear whereas solid-state structures of complex 2 contains a mixture of co-crystals of mono- and binuclear complexes 2a [Cu(L)(H2O)(SO4)] and 2b [(L)Cu-(SO4)2-Cu(L)]. The molecular structure of 2 contains two units of mononuclear complex 2a and two units of binuclear complex 2b. Copper contains in all mono- and binuclear complexes are in a distorted square pyramidal geometry. The present study indicates that complexes having different nuclearities and geometries can be achieved by changing synthetic conditions and methods. Variable temperature magnetic susceptibility measurements of the complexes have shown a weak anti-ferromagnetic interaction. The presence of weak anti-ferromagnetic interactions is mediated by intermolecular hydrogen bonding in 1 and by symmetric sulfate bridge in 2, respectively. The Epr spectra in polycrystalline state of 1 and 2 exhibited a broad signal at 2.149 due to the spin-spin interactions between two copper(II) ions. The cyclic voltammograms of complexes 1 and 2 in DMSO gave two irreversible redox waves. Density functional theory (DFT) calculations were evaluated in the study involved the molecular specification for the use of B3LYP/LANL2DZ formalism for copper atom and B3LYP/6-31G for the remaining atoms. Both complexes catalyzed the dismutation of superoxide ( 02). Furthermore, copper complexes and ligand were tested to explore the anticancer properties. Promising cytotoxicity of synthesized compounds was observed on the selected cancerous cell line of neuroblastoma, lung carcinoma, hepatocellular carcinoma and breast cancer.

Download or read book Syntheses and Crystal Structures of Copper II Chloride Complexes with Some Diols written by Reijo Sillanpää and published by . This book was released on 1984 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book I The Syntheses Solution Behavior Crystal Structures and Magnetic Properties of Some Imidazolate Bridged Copper II Complexes II The Crystal Structure and Magnetic Properties of a Tricopper II Cluster Containing a Triply Bridging Carbonate Group written by Gary Arnold Kolks and published by . This book was released on 1980 with total page 758 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Crystal Structure of a Binuclear Copper II Complex of the Deprotonated Anion of 2S 9S N N dialanylethylenediamine written by Tsong Jen Lee and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Two donor N atoms of one H-1DAEN and one donor N atom and onr donor O atom of the other H-1DAEN form a slightly distorted plane and an aqua O atom occupies the axial position. The ditances of the two axial Cu-O bonds are 2.469(7) and 2.395(5) A. These two aqua O-atoms are in the oposite sides of the Cu2(H-1DAEN)2 plane.