Coordination compounds

In recent times many research activities have been carried out to prove the metal ion detection ability of Schiff bases. [13,14] In the present study, a new Schiff base has been synthesized from 5-bromo-2- hydroxybenzaldehyde and naphthalene-1,8-diamine and it is complexated with Co(II), Ni(II), Cu(II) and Zn(II) ions. The biological application of all the compounds has been analyzed and metal ions recognition property of the Schiff base has also been studied.

16p dianmotminh02 03-05-2024 5 1   Download

Ebook "Site-selective catalysis" focuses on (1) ligand-controlled site-selective cross-coupling, (2) iron-catalyzed site-selective oxidation of alkyl C– H bonds, (3) catalytic site-selective conjugate addition of conjugated dienones and trienones, (4) site-selective redox-triggered C–C coupling of diols, (5) site-selective cleavage of peptides and proteins, (6) catalyst-controlled site-selective molecular transformations of carbohydrates, (7) site-selective functionalization of complex natural products by peptide-based catalysts, and (8) site-selective acylation of carbohydrates and its app...

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Ebook "The privileged pincer-metal platform: Coordination chemistry & applications" discussed primarily those aspects of the chemistry and applications of the prototypical monoanionic pincer-metal compounds. In this formulation, the metal center is covalently bonded via a central (sp2 or sp3 hybridized) C-metal bond in addition to two complementary interactions with neutral heteroatom donors.

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Part 2 book "Chemistry" by author Catherine E. Housecroft includes content: Equilibria, thermodynamics, electrochemistry, the conductivity of ions in solution, periodicity hydrogen and the s-block elements, p-Block and high oxidation state d-block elements, coordination complexes of the d-block metals, carbon compounds - an introduction, acyclic and cyclic alkanes, alkenes and alkynes, polar organic molecules - an introduction, halogenoalkanes, ethers, alcohols.

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Ebook "Cyclometalation reactions: Five-membered ring products as universal reagents" provides a review of cyclometalation reactions and organometallic intramolecular-coordination five-membered ring products, the most active type of reactions in synthetic organic reactions and their products. Included is the discovery of intramolecular-coordination bonds in cyclometalation reactions and the characteristics of those reactions, as well as the reasons that their five-membered ring compounds are very easily synthesized through such reactions.

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Ebook "Specific intermolecular interactions of nitrogenated and bioorganic compounds" development of the thermodynamic theory of specific intermolecular interactions to a wider spectrum of nitrogenated and bioorganic compounds: amino alcohols, amino acids, peptides and urea derivatives. The fundamentals of an unconventional approach to the theory of H-bonding and specific interactions are formulated based on a concept of penta- coordinated carbon atoms.

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Ebook "A structural and vibrational study of the chromyl chlorosulfate, fluorosulfate, and nitrate compounds" presents important studies related to the structural and vibrational properties on the chromyl compounds based on Ab-initio calculations. The synthesis and the study of such properties are of chemical importance because the stereo-chemistries and reactivities of these compounds are strongly dependent on the coordination modes that adopt the different ligands linked to the chromyl group.

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Ebook "Fluxional organometallic and coordination compounds (Physical organometallic chemistry, Volume 4)" is to offer to post-graduates and researchers leading contributions written by well-known scientists reviewing the state-of-the-art of hot topics animating this wide research area, in order to develop new insights and to promote novel interest and investigations.

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In ebook "Low-frequency vibrations of inorganic and coordination compounds" organometallic compounds have been neglected since the author feels that adequate reviews of that subject are available. Other studies may be missing simply because, owing to space limitations, only the more important researches could be considered. Of course, "importance" may, in this case, reflect the author's interest and prejudices.

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Ebook "Handbook of inorganic compounds" is fully revised and updated. New data include optical inorganics, radiation detection inorganics, thermochromic compounds, piezochromic compounds, metal ion coordination complexes, expanded crystallographic and structural data for inorganics, catalysts, superconductors, and luminescent (fluorescent and phosphorescent) inorganics.

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Ebook "Modular system chemical bonds" is designed to introduce basic knowledge about chemical bonds. Chemists work everyday to produce new compounds to make our lives easier with the help of this basic knowledge. In the design, emphasis has been placed upon making the book student friendly. Throughout the books, colorful tables, important reactions, funny cartoons, interesting extras and reading passages are used to help explain ideas.

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Ebook "Infrared spectroscopy of minerals and related compounds" provides an overview of the application of IR spectroscopy in mineralogical investigations, as well as modern trends in the IR spectroscopy of minerals. It includes the most important methodological aspects; characteristic IR bands of different chemical groups and coordination polyhedra; application of IR spectroscopy to the investigation of the crystal chemistry of amphiboles, phyllosilicates, tourmalines etc.;...

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This review comprises the inorganic compounds particularly metal coordinated complexes, as drugs play a relevant role in medicinal chemistry. It has been observed that copper complexes are potentially attractive as medicinal importance. In this review, the most remarkable achievements of copper complexes undertaken over the past few decades as antimicrobial, antioxidant, enzyme inhibition activity, and anti-cancer agents are discussed.

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Coordination-driven self-assembly of nickel (II) ions with equimolar amounts of 1, 10 phenanthroline, and benzoic acid was used to create homonuclear nickel (II) MOF-type supramolecule. Single crystal X-ray diffraction, scanning electron microscopy, differential scanning calorimetry, photoluminescence measurement, FT-IR, UV-visible spectroscopy, and nitrogen physisorption measurement were used to characterize the compound. The single crystal X-ray diffraction study reveals that the synthesized compound is twodimensional with pores in the structure.

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Analysis of multiple equilibria of compounds with different coordination sites is extended to the description of adsorption isotherms with focus on the low relative pressure range. The entropy evolution is described using the particle distribution theory which also holds for adsorbents consisting of materials bearing more than one type of sites and applies for the condition that the adsorptive-adsorbent binding strength is larger than the adsorptiveadsorbate binding strength, so that monolayer coverage is favored.

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The synthesis of metal-organic frameworks has attracted considerable interest due to their potential applications as functional materials in catalysis; 1,2 gas sorption, storage, and separation; 3,4 molecular magnetism5 and recognition; 6 and nonlinear optics. 7 While the synthesis of fascinating self-assembly metal-organic coordination polymers occurs via bridging ligand and also through weak noncovalent interactions, such as π − π stacking or hydrogen bonding, 8−20 the construction of metal-organic compounds mainly depends on the nature of the organic ligands and metal ions.

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The Co(II), Fe(II), and Zn(II) complexes of 1-(3-phenyl)propylbenzimidazole (PPBI), 5-nitro-1-(3-phenyl) propylbenzimidazole (PPNBI), 1-[2-(4-morpholinyl)ethyl]benzimidazole (MEBI), 1-[2-(1-piperidinyl)ethyl]benzimidazole (PEBI), and 5-nitro-1-[2-(1-piperidinyl)ethyl]benzimidazole (PENBI) were synthesized and characterized by 1H NMR, 13C NMR, and elemental analyses. The magnitudes of the magnetic moments for paramagnetic complexes were between 4.07 and 5.11 B.M.

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The antiproliferative and cytotoxic activities of C1 and C2 were significantly lower than those of free anions, indicating that the extreme cytotoxicity of free anions decreased to safe levels in C1 and C2. In conclusion, the results show that these novel compounds possess anticancer activities. The use of metals in medicine dates back to antiquity, with various complexes being used to treat different ailments. Even today, metal complexes and their application in medicine have been studied extensively.

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The vic-dioximes are compounds with various industrial uses and scientific applications. Many coordination compounds have been synthesized based on vic-dioximes. This study presents the synthesis and full characterization of two vic-dioximes based on dichloroglyoxime, p-aminobenzoic acid, and p-aminotoluene. Their structures were proved by IR, 1 H, 13C and 15N NMR spectral analysis, and single crystal X-ray diffraction.

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Tetra-coordinated nickel(II) complexes of two ONS (1, 2) and seven ONN (3a–3g) chelating 2-hydroxy3-methoxy-benzaldehyde thiosemicarbazones were synthesized. The dibasic ligands and complexes bearing PPh 3 as a coligand were characterized by means of analytical and spectroscopic data. Cytotoxic activities of the ligands and nickel(II) complexes were determined using the MTT assay in vitro against MDCK cells, and then all the compounds were tested on influenza virus replication by plaque assays. The compounds showed GI 50 values varying from concentrations of 15.9 up to 161.

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