Relevant bibliographies by topics / Metal ligand composition

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  2. Dissertations / Theses
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  4. Conference papers

Academic literature on the topic 'Metal ligand composition'

Author: Grafiati
Published: 5 June 2025
Last updated: 1 August 2025

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Journal articles on the topic "Metal ligand composition"

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Shukla, S., S. Gautam, S. Chandra, and A. Kumar. "SYNTHESIS, SPECTRAL STUDIES, STRUCTURAL EVALUATION AND ANTIMICROBIAL ACTIVITY OF SOME NOVEL C R(III) COMPLEXES CONTAINING TETRADENTATE MACROCYCLIC LIGANDS." INDIAN DRUGS 54, no. 06 (2017): 20–29. http://dx.doi.org/10.53879/id.54.06.10962.

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A string of novel coordination compounds of Cr(III) complexes have been derived and characterized from the macrocyclic ligands (L 1 -L 2 ) carried out by condensation reaction between ligands and the subsequent metal salt. The chemical composition of ligand was determined by analytical and spectral techniques i.e. elemental analysis, IR and Mass spectrocopy. Spectral techniques revealed tetradentate [N 4 ] the nature of ligand and its coordination mode to metal ion through nitrogen donor atoms. Metal complexes were characterized by elemental analyses, molar conductance, magnetic susceptibility
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Shamsutdinova, Medina Humaidovna, Nur-Magomed Rezvanovich Tashligov, and Yunus Yakubovich Kurbanov. "SYNTHESIS, STRUCTURE AND PROPERTIES OF COMPLEX COMPOUNDSOF COBALT (II) WITH BENZOXASINE DERIVATIVES." National Association of Scientists 1, no. 30(57) (2020): 75–78. http://dx.doi.org/10.31618/nas.2413-5291.2020.1.57.263.

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In this work, coordination compounds of Co (II) with derivatives of dihydro-4H-3,1-benzoxazines were synthesized by a chemical method and their composition, structure, and physicochemical properties were studied. ... According to the data of elemental analysis and analysis for metal, the obtained complex compounds have the composition ML2, where M is metal, L are ligands: 2- [2-hydroxyphenyl] -4,4-diphenyl-1,2-dihydro-4H-3,1benzoxazine (L1), 2- [2-hydroxy-5-nitrophenyl] -4,4-diphenyl-1 , 2-dihydro-4H-3,1-benzoxazine (L2), 2- [2hydroxynaphthyl] -4,4-diphenyl-1,2-dihydro-4H-3,1-benzoxazine (L3),
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Jamil, Yasmin Mos'ad, Fathi Mohammed Al-Azab, and Nedhal Abdulmawla Al-Selwi. "Novel organophosphorus Schiff base ligands: Synthesis, characterization, ligational aspects, XRD and biological activity studies." Ecletica Quimica 48, no. 3 (2023): 36–53. http://dx.doi.org/10.26850/1678-4618eqj.v48.3.2023.p36-53.

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Six complexes have been synthesized from Cu(II), Ni(II), and Co(II) with new bidentate N2 donor Schiff base ligand (2-methoxybenzalidene-1-phenylsemicarbazide L1) and tridentate N2O donor organophosphorus Schiff base ligand (2-methoxybenzalidenediphenylphosphate-1-phenylsemicarbazide L2). Both ligands were synthesized and characterized by metal analysis, infrared (IR), ultraviolet visible (UV-Vis), and nuclear magnetic resonance (NMR) spectral studies. The chemical structures of the synthesized complexes were characterized using their metal analysis, magnetic susceptibility, molar conductance,
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Kapustian, A., and N. Cherno. "Determination of complex forming ability of mixed-ligand organic systems relative to the metal ions." Scientific Messenger of LNU of Veterinary Medicine and Biotechnologies 21, no. 91 (2019): 130–35. http://dx.doi.org/10.32718/nvlvet-f9122.

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It is shown that classical and specific methods for determining the complex forming ability of mixed-ligand organic systems relative to the metal ions is not perfect. Determination of complex-forming ability of mixed-ligand organic systems relative to the metal ions using the method of turbidimetry for media containing biometal chlorides, mixed-ligand systems and sodium carbonate is proposed. As mixed-ligand systems used the culture fluid Bifidobacterium bifidum AC-1670 (mixed-ligand system I), the culture fluid of the composition of probiotic bacteria (mixed-ligand system II), the culture flu
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Aiyelabola, T. O., E. O. Akinkunmi, and O. Osungunna. "Syntheses, Characterization and Biological Activity of Coordination Compounds of Propanedioic Acid and its Mixed Ligand Complexes with N,N'-Dihydroxy-2,3-butanediimine." Asian Journal of Chemistry 33, no. 8 (2021): 1911–18. http://dx.doi.org/10.14233/ajchem.2021.23309.

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The coordination compounds of propanedioic acid with cobalt(II), nickel(II) and copper(II) ions were synthesized using metal:ligand 1:2. In addition to this, mixed ligand complexes using the same metal ions with propanedioic acid as the primary ligand and N,N'-dihydroxy-2,3-butanediimine as the secondary ligand were also synthesized using M:L1:L2 (1:1:1) where L1 = propanedioic acid, L2 = N,N'-dihydroxy-2,3-butanediimine and M = Cu(II), Ni(II) and Cu(II). The synthesized compounds were characterized using FTIR, UV-vis, magnetic susceptibility measurement and percentage metal composition. The l
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P., C. NIGAM, M. NAIK R., and PRASAD S. "Kinetics and Mechanisms of Ligand Exchange Reactions : A Review." Journal of Indian Chemical Society Vol. 69, Aug 1992 (1992): 475–80. https://doi.org/10.5281/zenodo.6022701.

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Department of Chemistry, Manipur University, Imphal-795 003<strong> </strong> Department of Chemistry. Indian Institute&nbsp;of Technology, Kanpur-208 016<strong> </strong> <em>Manuscript received 27 March 1991</em> Chemical reactions in which the composition of the first coordination sphere around a metal centre changes, are termed ligand exchange reactions&nbsp; A&nbsp; thorough appreciation of the chemistry of transition metals requires an understanding and knowledge of their reaction mechanisms In this review we discuss the salient features of exchange reactions under the following heads a
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Noor, Mah, Hamza Chah, David Tresp, Ivan Bernal, and Roger A. Lalancette. "The versatility of 1,4,8,11-tetraazacyclotetradecane (cyclam) in the formation of compounds of Co2+, Ni2+, Cu2+, and Zn2+ with metal ions in and out of the cyclic ligand ring." Zeitschrift für Kristallographie - Crystalline Materials 238, no. 7-8 (2023): 243–51. http://dx.doi.org/10.1515/zkri-2023-0026.

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Abstract Herein we report the results of preparing metal compounds (where the metal ions are Co2+, Ni2+, Cu2+, Zn2+) with the cyclic ligand 1,4,8,11-tetraazacyclotetradecane [cyclam] under a variety of conditions of metal-ligand ratios and solvent media. In all cases, we used metal Cl2·nH2O salts (except for anhydrous CoCl2), as specified. Outcome: we isolated species with a four-coordinate metal in the N4 cavity of the ligand alone, and also with either one or two additional axial ligands. Those axial ligands can be (a) a single chloride, leading to penta-coordinated moncationic products; (b)
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Kareem, May Joda. "Synthesis, Spectroscopic Study and Biological Activity of new Bidentate Schiff Base (4-(Dimethylamino) Benzylidene)-5-(3,4,5-Trimethoxybenzyl)-5 Pyrimidine-2,4-Diamine) and Transition Metal Mn(II), Ni(II) and Cu(II) Complexes." Pakistan Journal of Medical and Health Sciences 16, no. 5 (2022): 655–59. http://dx.doi.org/10.53350/pjmhs22165655.

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The Schiff bases ligand (L1) was synthesized by condensing (2,4-diamine (Trimethoxybenzyl 3,4,5)-5 pyrimidine) and (4-dimethylamino benzaldehyde). The transition metal complexes of [Mn(L1)2Cl2], [Ni(L1)2Cl2], and [Cu (L1)2Cl2] were then produced. The ligand and its metal complexes Mn(II), Ni(II), and Cu(II) were examined by analyzing the elemental composition, the metal content, the chloride content, and the molar conductance, FT-IR, 1H-NMR, UV-Vis spectra, magnetic susceptibility, mass spectra, and thermal analysis (TGA). The results indicated that the ligand behaves as a bidentate ligand in
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A., Padmaja, Laxmi K., and Sarala Devi Ch. "Spectro-analytical studies on (E)-N' -(2-hydroxybenzylidene) benzohydrazide and its interaction with CuII." J. Indian Chem. Soc. Vol. 88, Feb 2011 (2011): 183–87. https://doi.org/10.5281/zenodo.5763425.

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Department of Chemistry, Nizam College, Osmania University, Basheerbagh, Hyderabad-500 091, India <em>E-mail</em> : dr_saraladevich@yahoo.com Fax : 91-040-23240806 Department of Chemistry, Chaitanya Bharathi Institute of Technology, Gandipet, Hyderabad-500 075, India <em>E-mail</em> : katta_laxmi2000@yahoo.co.in <em>Manuscript received 19 February 2010, revised 21 May 2010, accepted 03 June 2010</em> The ligand (E)-<em>N</em>&#39; -(2-hydroxybenzylidene)benzohydrazide formed a green coloured complex with Cu<sup>ll</sup> metal. The composition of complex was determined spectrophotometrically, b
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Stanila, Andreea, and Sorin Stanila. "Spectroscopic Studies of Aminoacids Complexes with Biometals." Chemistry Journal of Moldova 7, no. 1 (2012): 140–44. http://dx.doi.org/10.19261/cjm.2012.07(1).26.

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The [Cu(L)2]·H2O, [Co(L)2]·2H2O, [Zn(L)2]·H2O complexes with methionine (L) as ligand, were synthesized in water solution and analyzed by means of: elemental analysis, atomic absorption spectroscopy, thermogravimetry, FT-IR, UV-VIS and EPR spectroscopies. The atomic absorption spectroscopy and elemental measurements confi rm the ratio 1:2 metal ion: methionine composition for the synthesised compounds.The IR spectra show that amino acids act as bidentate ligands with coordination involving the carboxylic oxygen and the nitrogen atom of the amino group. Spectral UV-VIS data confi rmed the coval
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Dissertations / Theses on the topic "Metal ligand composition"

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Sahmoune, Amar. "Extractions synergiques de metaux divalents de transition par association d'une acyl-4-pyrazolone-5 avec des polyethers cycliques et acycliques." Université Louis Pasteur (Strasbourg) (1971-2008), 1988. http://www.theses.fr/1988STR13116.

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Extractions de co. Zu. Cd et cu divalents par les melanges phenyl-1 methyl-3 benzoyl-4 pyrazolone-5 ethers crown. La coextraction alcalins-alcalinoterreux complexes par les composes crown et des metaux divalents est possible quand la taille de la cavite de l'ether-crown est voisine de celle de l'alcalin (ou alcalino-terreux) et quand l'ion ml::(3)**(-) est suffisamment stable
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Charbonnel, Marie-Christine. "Extraction de l'uranium (vi), du plutonium (iv) et des produits de fission par les n,n'-tetraalkyldiamides." Clermont-Ferrand 2, 1988. http://www.theses.fr/1988CLF21116.

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Etude des proprietes extractives de r::(2)nc(o)(ch::(2))::(3) c(o)nr::(2). Ces composes extraient u(vi) et pu(iv), les actinides et lanthanides trivalents restant en phase aqueuse. Mise en evidence des 3 complexes 2l. Hno::(3), l. Hno::(3) et l. 2hno::(3) (l-glutaramide). A faible acidite, on a pu observer les complexes l. Uo::(2)(no::(3))::(2) et l. Pu(no::(3))::(4) et a forte acidite l. Uo::(2)(no::(3))::(3)h et l. Pu(no::(3))::(6)h::(2)
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Metabanzoulou, Jean-Pierre. "Mecanisme de la complexation de l'ion uo : :(2)**(2+) par des di(acyl-4 pyrazolones-5), des ethers-couronnes, des diazapolyoxamacrocycles et des ligands apparentes." Université Louis Pasteur (Strasbourg) (1971-2008), 1988. http://www.theses.fr/1988STR13146.

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Etude spectrophotometrique de la stabilite des complexes de l'ion uo::(2)**(2+) et de l'ion cu**(2+), dans l'eau et eau-acetonitrile. Structures possibles des complexes 1:1, 1:2 et 2:1. Mecanismes de formation des complexes
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Diantouba, Bertin Aimé. "Effets structuraux des acyl-4-pyrazolones-5 dans l'extraction liquide-liquide des cations metalliques divalents." Université Louis Pasteur (Strasbourg) (1971-2008), 1988. http://www.theses.fr/1988STR13093.

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Etude de l'effet de l'acidite de la lipophilie et effets structuraux des acyl-4 pyrazolones-5 dans l'extraction de cu, co, zu et pb divalents. Extraction de 3 types de complexes metalliques : mononucleaires de type m(l-n-lh)::(2) ou m(l-n-l) et polynucleaires (m(l-n-l))::(j). Meilleures possibilites des bis-acyl-4 pyrazolones-5
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Faulmann, Christophe. "Conducteurs derives de metaux de transition : complexes moleculaires, polymeres, oxydes de cuivre." Toulouse 3, 1988. http://www.theses.fr/1988TOU30160.

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Book chapters on the topic "Metal ligand composition"

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Wilkins, Patricia C., and Ralph G. Wilkins. "The composition of metallobiomolecules." In Inorganic Chemistry in Biology. Oxford University Press, 1997. http://dx.doi.org/10.1093/hesc/9780198559337.003.0002.

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This chapter focuses on the make-up of the metallobiomolecule, particularly the portion in which the metal ion resides. It talks about the rules that govern structures of biomolecules that are much the same with or without a metal ion, although there can be significant perturbations due to the presence of the metal. It also discusses the metal-ligand bond which is central to many aspects of the behaviour of metallobiomolecules. The chapter covers the metalloproteins and metal complexes of biologically important materials and the metal ion that is attached to the ligands by nitrogen, oxygen, or
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Sergeevna Ageeva, Liliya, Nikolai Alekseevich Borsch, and Nikolay Vladimirovich Kuvardin. "2(4)-Aminopyridines as Ligands in the Coordination and Extraction Chemistry of Platinum Metals." In Exploring Chemistry with Pyridine Derivatives. IntechOpen, 2023. http://dx.doi.org/10.5772/intechopen.106376.

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The specific behavior of aromatic amines in the coordination and extraction processes of isolation and separation of platinum and other metals is discussed using the example of 2(4)-aminopyridines (2(4)-AP). As intrasphere ligands, 2(4)-AP have a high electron-donor capacity due to the pumping of an easily polarizable π-electron density. The chemistry of the extraction of platinum metals, iridium in particular, is considered: depending on the conditions, ion associates, coordination-solvated compounds or compounds containing an amine in the inner and outer coordination sphere of the metal are
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Kumar, Nikhil, Nisha Gupta, and Pallab Bhattacharya. "Metal-Organic Frameworks (MOFs): Chemistry, Properties, and Energy Storage Applications." In Multidimensional Nanomaterials for Supercapacitors: Next Generation Energy Storage. BENTHAM SCIENCE PUBLISHERS, 2024. http://dx.doi.org/10.2174/9789815223408124010007.

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The scarcity of natural stocks of fossil fuels and the rising pollutant ions evolved from the burning of carbon-containing fuels, has triggered the necessity for clean, renewable, and sustainable energies to be generated and its subsequent storage in portable form to meet the on-demand consumption. However, the performances of storage materials are still limited for extensive real-world applications due to their sluggish ion diffusion kinetics, lack of efficiency in extreme weather conditions, poor chemical stability, and many more. Therefore, it is highly requisite to discuss the development
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Ejsmont, Aleksander, Agata Chełmińska, Martyna Kotula, et al. "Post-synthetic Modification and Engineering of Metal Nodes and Organic Ligands of MOFs for Catalytic Applications." In Advanced Catalysts Based on Metal-organic Frameworks (Part 1). BENTHAM SCIENCE PUBLISHERS, 2023. http://dx.doi.org/10.2174/9789815079487123010004.

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Metal-organic frameworks (MOFs) emerged as adjustable and multipurpose materials, which are now intensively investigated worldwide. They are composed of a wide range of organic and inorganic building units which are a susceptible base for various post-synthetic modifications (PSMs). In the last years, altering MOFs composition has significantly contributed to their broad application in many fields, especially in heterogeneous catalysis. PSMs are employed to improve the physicochemical properties of MOFs such as stability or selectivity, but mostly to generate catalytically active sites. Here,
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Jordan, Robert B. "Bioinorganic Systems." In Reaction Mechanisms of Inorganic and Organometallic Systems. Oxford University Press, 2007. http://dx.doi.org/10.1093/oso/9780195301007.003.0010.

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The field of bioinorganic chemistry has grown tremendously in the past 25 years. Much of the work is concerned with establishing the coordination site, ligand geometry and metal oxidation state in biologically active systems. The field also extends to the preparation and characterization of simpler model complexes that mimic the spectroscopic properties and perhaps some of the reactivity of the biological system. Much of this characterization work must precede meaningful mechanistic studies. Williams has provided an interesting overview of metal ions in biology from an inorganic perspective. T
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Kutus, Bence, and Pál Sipos. "Complex Formation in Hyperalkaline Solutions." In Metal Ions and Complexes in Solution. Royal Society of Chemistry, 2023. http://dx.doi.org/10.1039/bk9781839169601-00313.

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Strongly alkaline conditions in aqueous systems may give rise to the formation of novel, so far undiscovered metal complexes, and crystallization from these systems often yields solid materials with peculiar local structures. This is of particular importance from a practical point of view, since the knowledge of the structure and dynamics of these solution species could be the key to understand and to manipulate a large variety of processes, both industrial and geochemical. The current contribution is focused on solution species with ligands as hydroxides, organic molecules with O-donor atoms,
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Conference papers on the topic "Metal ligand composition"

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Kuznetsov, Yu I. "The Role of Chemical Structure of Organic Compounds in Corrosion Inhibition." In CORROSION 1989. NACE International, 1989. https://doi.org/10.5006/c1989-89134.

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Abstract Some achievements in corrosion inhibition of metals by organic compounds are considered on the basis of analysing the scientific publications during the last decade. The influence of chemical structure of organic compounds on inhibitor protection of various metals dissolving from the active state or undergoing localized corrosion is given special attention. The great importance of considering both the electronic and solvation effects as well as further development of the complex formation concept for better understanding of the inhibition process is emphasized. Attention is drawn to t
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Page, Catherine, Michael Ansell, Betsy Cogan, Grace Neff, and Lisa Hommel. "Self-Assembled Inorganic-Organic Multilayer Thin Films." In Chemistry and Physics of Small-Scale Structures. Optica Publishing Group, 1997. http://dx.doi.org/10.1364/cps.1997.csud.5.

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Self-assembly of inorganic-organic multilayer thin films allows the construction of materials with control of thickness, chemical composition, properties and proximity of different layers for use in a variety of applications. By developing different types of organic-inorganic bonding which can be exploited to self-assemble multilayer films we are able to prepare superstructure multilayers consisting of, for example, alternating hafnium-bisphosphonate layers and cobalt diisocyanide layers. The ability to make superstructures with different types of metal-ligand interactions allows more flexibil
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Kumar, N., N. Ivanova, and S. Bakirov. "CHEMISTRY, PROPERTIES, AND ENERGY STORAGE APPLICATIONS OF METAL-ORGANIC FRAMEWORKS." In Current problems of energy in agricultural industry. Vavilov University, 2023. http://dx.doi.org/10.28983/9875701108293-2023-3-11.

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Production of green and sustainable energy from renewable sources is a worldwide demand for future generation energy-based technologies. The paucity of natural fossil fuels stocks and burning of carbon-containing fuels are continuously rising global warming and air pollution. Therefore, the necessity for clean energies generation and its storage in portable devices to meet the on-demand utilization. However, the efficiency of energy storage materials is still inadequate for widespread real-world applications because of their sluggish kinetics of ion diffusion, lack of efficiency in incompatibl
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Djimasbe, Richard, Mikhail A. Varfolomeev, Eduard A. Galiullin, et al. "Development and Assisted Injection of Sub- And Supercritical Water by the Oil-Soluble Catalysts for the Intensification of Upgrading Process of the Bazhenov Oil Shale and Production of Synthetic Oil." In SPE/IATMI Asia Pacific Oil & Gas Conference and Exhibition. SPE, 2023. http://dx.doi.org/10.2118/215485-ms.

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Abstract In this paper, an EOR technology was proposed, including a development of oil soluble catalytic compositions and their injection with sub- and supercritical water (sub- and SCW) for in-situ hydrothermal upgrading of oil shale and intensifies the generation of synthetic oil. The experiments were carried with the oil shale sample from the Bazhenov formation (Russia) with 9.13% of the total organic carbon (TOC) which 83% composed of kerogen, at the sub- and SCW conditions of 300-400°C taking into account of the reservoir pressure ≥ 250 bars and with time (6-24h) in the presence and absen
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