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application of coordination compounds

Nomenclature Of Coordination Compounds 35:37 3.5k LIKES. When the complex is charged, it is stabilized by neighboring counter-ions. G. Wilkinson | download | Z-Library. Nomenclature Of Coordination Compounds 35:37 3.5k LIKES. Haemoglobin, the red pigment 1 of blood which acts as oxygen carrier is a coordination compound of iron. 2. The metal ions that form coordination compounds are from a group of metals known as transition metals. ers applications of coordination chemistry and has an ambitious remit: to survey the developments in the applications of coordination chemistry since 1982. Phthalocyanine is a class of coordination complexes that the dyes and pigments industry extensively use. The uses of metal complex compounds in the various fields of analytical chemistry are reviewed with particular reference to newer reagents and fresh applications of established reagents. Since the nature of the ligands and the metal can be tuned extensively, a variety of colors can be obtained. Application of coordination compounds Coordination compounds are found in populating systems and have many utilizations in the place, in industry, and medical specialty. A charge transfer band entails promotion of electrons from metal-based orbitals and ligand -based orbitals. the central metal atom or ion is linked by ions or molecules with coordinate bonds. Discuss the application of coordination complexes in biomolecules. Chelating agents are ligands for metals that bind via multiple atoms, thus taking … application of coordination compounds in chemistry. Comprehensive Coordination Chemistry Synthesis Reactions: Properties & Applications Coordination Compounds Ligands | Sir. Coordinate bond is a covalent type bond in which both theshared pair of electrons are contributed by one atom. The overall charge of the system remains the same, but the localization of the electron changes. • If absorption occurs then the transmitted light bears a colour complementary to the colour of the light absorbed. Examples of common Metalloprotein is a generic term for a protein that contains a metal ion cofactor. Extractive metallurgy is the practice of removing valuable metals from an ore and refining the extracted raw metals into purer form. Applications of Coordination Compounds The sections and subsections in this chapter are listed below. It follows on from the review of Volume 6, published in our April issue (1). Coordination compounds are found in populating systems and have many utilizations in the place, in industry, and medical specialty. The review describes the influence of various physicochemical factors regarding the coordination relationship (for example, steric hindrance, Hardness of water is estimated by simple titration with Na 2 EDTA. As with all enzymes, the shape of the active site is crucial. Some of the important applications of coordination compounds are as follows: Coordination compounds like Na 2 EDTA are used for the detection of the hardness of the water. Study Materials Definition of Some Important Terms Pertaining to Coordination Chemistry Werner's Theory: Introduction, Postulates, Limitations, Examples, Videos Valence Bond Theory in Coordination Compounds: Valence Electrons. Three separate steps are required for organisms to obtain essential transition metals from their environment: mobilization of the metal, transport of the metal into the cell, and transfer of the metal to where it is needed within a cell or an organism. Medicinal Applications of Coordination Chemistry begins with a brief historical review and an introduction to the chemistry of d- and f- block metals. Vocabulary. For example, hemoglobin, hemerythrin, and hemocyanin, which contain heme iron, nonheme iron, and copper, respectively, are used by different kinds of organisms to bind and transfer O2. Have questions or comments? Application of coordination compounds – Metals only exist in solution as coordination complexes, it follows then that this class of compounds is useful in a wide variety of ways. The chelate effect describes the enhanced affinity of chelating ligands for a metal ion, compared to the affinity of a collection of similar non-chelating ( monodentate ) ligands for the same metal. Coordination compounds are the compounds in which the centralmetal atom is linked to a number of ions or neutral molecules by coordinatebond. Uses of coordination compounds: 1. Among them, coordination compounds also play a key role in serving humanity as these compounds have a wide range of applications in health care from antimicrobial to anticancer, bioengineering, bio-mimetic models, catalysis, photosensitized materials etc. 25.6: Applications of Coordination Compounds, https://chem.libretexts.org/@app/auth/2/login?returnto=https%3A%2F%2Fchem.libretexts.org%2FBookshelves%2FGeneral_Chemistry%2FMap%253A_A_Molecular_Approach_(Tro)%2F25%253A_Transition_Metals_and_Coordination_Compounds%2F25.06%253A_Applications_of_Coordination_Compounds, \[M^{n+} + e^- \rightleftharpoons M^{(n−1)+} \label{23.14}\], \[\ce{CoCH_2R <=> Co^{2+⋅} + ⋅CH_2R} \label{23.22}\], 25.E: Transition Metals and Coordination Compounds (Exercises), Enzymes That Use Metals to Generate Organic Radicals, information contact us at info@libretexts.org, status page at https://status.libretexts.org, mammals, birds, fish, reptiles, some insects. Noble metals like silver and gold are extracted from their ore by the formation of cyanide … The applications coordination compounds are of great importance. In metalloproteins, metal ions are usually coordinated by nitrogen, oxygen, or sulfur centers belonging to amino acid residues of the protein. In this video I have explained the importance and applications of coordination compounds. Uses of coordination compounds. The applications of coordination compounds as catalysts in industrial processes as follows: (a) In the polymerisation of ethene, The Ziegler-Natta catalyst is used which is a combination of titanium tetrachloride and tri ethyl aluminium. Metal complexes often have spectacular colors caused by electronic transitions by the absorption of light. The metal ion is usually located in a pocket whose shape fits the substrate. This review provides an overview of the applicability range of chiroptical methods as a principle tool for chirality investigation, and typical applications of chiral coordination chemistry. Related Video. The applications of coordination compounds involving multidentate ligands are again so myriad that I have had to choose among them. Chelating Agents. anticancer drug cisplatin). Therefore, they find a common place in industries for intense colourations. They use it to impart specific colouration to fabrics. Coordination compounds have applications in day-to-day life. Consider the following reaction: [latex]\text{CO}_2+\text{H}_2\text{O}\rightleftharpoons \text{H}_2\text{CO}_3[/latex]. Dyes and Pigments: Coordination compounds have been utilized from prior times as dyes and pigments, for illustration madder dye that is red, was utilized by the ancient Greeks and others. Coordination compounds are those addition molecular compounds which retain their identity in solid state as well as in dissolved state. (When copper sulphate solution is mixed with aqueous ammonia, a deep blue complex soluble in water is formed. The metal ion catalyzes reactions that are difficult to achieve in organic chemistry. For more information contact us at info@libretexts.org or check out our status page at https://status.libretexts.org. While there are other biologically relevant molecules that also contain metals, coordination complexes contain a central metal ion and are important in many biological processes. A systematic investigation of structure and bonding in coordination chemistry began with the inquisitiveness of Tassaert which was extended by distinguished chemists like Wilhelm Blomstrand, Jorgensen and Alfred Werner until the end of the nineteenth century. Application of coordination compounds 1. A group of insoluble carbonate salts. 70.3k VIEWS. e.g., Potassium ferrocyanide, K 4 [Fe (CN) 6 ]. Heme B: Heme B is a porphyrin (four linked pyrrole rings) that readily binds iron, as shown. The transition metals, particularly zinc and iron, are most often found at the active sites of enzymes. Therefore, they find a common place in industries for intense colourations. Cordination compound 1. The three coordinating histidine residues are shown in green, hydroxide in red and white, and the zinc in gray. The LibreTexts libraries are Powered by MindTouch® and are supported by the Department of Education Open Textbook Pilot Project, the UC Davis Office of the Provost, the UC Davis Library, the California State University Affordable Learning Solutions Program, and Merlot. It is estimated that approximately half of all proteins contain a metal. Coordination complexes can undergo a variety of reactions, including electron transfer, ligand exchange, and associative processes. Uses of coordination compounds:. The field of extractive metallurgy encompasses many specialty sub-disciplines, including mineral processing, hydrometallurgy, pyrometallurgy, and electrometallurgy. Coordination compounds have a vital role in many branches of chemistry. Coordination compounds exert many interesting properties, which find diverse applications in many aspects of human life. Applications Coordination compounds have specific colours. Importance and Application of Coordination Compounds: EDTA is used in the estimation of Ca 2+ and Mg 2+ in hardwater. The electrons contributed by the ligand changed into hybridized orbitals with more energy. The converse will also occur: excitation of an electron in a ligand-based orbital into an empty metal-based orbital (Ligand to Metal Charge Transfer or LMCT). Importance and Applications of Coordination Compounds. CC licensed content, Specific attribution, http://en.wikipedia.org/wiki/Coordination_complex, http://en.wiktionary.org/wiki/coordination, http://en.wikipedia.org/wiki/File:Cisplatin-3D-balls.png, http://en.wikipedia.org/wiki/Extractive_metallurgy, http://en.wiktionary.org/wiki/dissolution, http://en.wikipedia.org/wiki/pyrometallurgy, http://en.wikipedia.org/wiki/File:TVA_phosphate_smelting_furnace.jpg, http://en.wiktionary.org/wiki/chelating_agent, http://en.wiktionary.org/wiki/chelate_compound, http://en.wikipedia.org/wiki/File:M-en1.png, http://en.wikipedia.org/wiki/File:Metal-EDTA.png, http://en.wikipedia.org/wiki/Qualitative_inorganic_analysis, http://en.wiktionary.org/wiki/precipitation, http://en.wikipedia.org/wiki/Precipitation_(chemistry), http://en.wikipedia.org/wiki/Colorimetric_analysis, http://upload.wikimedia.org/wikipedia/commons/thumb/7/78/Chemical_precipitation_diagram.svg/1000px-Chemical_precipitation_diagram.svg.png, http://en.wikipedia.org/wiki/File:Precipitation_of_Silver_on_Copper_1.jpg, http://en.wiktionary.org/wiki/inorganic_chemistry, http://en.wikipedia.org/wiki/Nickel(II)_chloride, http://en.wikipedia.org/wiki/File:Color_of_various_Ni(II)_complexes_in_aqueous_solution.jpg, http://en.wikipedia.org/wiki/Metalloprotein, http://en.wikipedia.org/wiki/File:Carbonic_anhydrase_1CA2_active_site.png, http://en.wikipedia.org/wiki/File:Heme_b.svg. Perhaps most famous are the tetradentate N4 macrocyclic ligands incorporated into the heme protein (most commonly seen as part of hemoglobin). In metalloenzymes, the metal ion is bound to the protein with one labile coordination site. The transition metals, particularly zinc and iron, are often key components of enzyme active sites. 7.5k VIEWS. CH2R radical. [latex]\text{CO}_2+\text{OH}^-\rightleftharpoons \text{HCO}_3^-[/latex]. 7.5k SHARES. Applications of Coordination Compounds. View All. The oxidized and reduced centers in all electron-transfer proteins have similar structures to ensure that electron transfer to and from the metal occurs rapidly. Some of their applications are mentioned below: In the extraction process of gold and silver; It is used as a catalyst in several industrial processes. Author information: (1)The Mersey White Lead Co. Ltd., Sankey Bridges, Warrington, England. Zinc, nickel, cobalt, and manganese are determined by the addition of ammonium chloride, ammonium hydroxide, and hydrogen sulfide gas. imidazole (a nitrogen atom donor) substituents in histidine residues, thiolate (sulfur atom) substituents in cysteinyl residues, carboxylate groups (oxygen atom) provided by aspartate. 15 min. Identify the topics, principles, concepts and methodologies in inorganic coordination chemistry that are essential toward a deeper understanding of the application you are studying. List and explain the application of coordination compounds in various industries. Coordination Compounds for Medicine and Biology The interaction of transition metal ions with biological molecules provides one of the most fas- cinating areas of coordination chemistry. Some of the major applications of the coordination compounds are described below. 1. Phthalocyanine is a class of coordination complexes that the dyes and pigments industry extensively use. Industry. Related Video. 2. It is the relative energetics of these electronic transitions that allows for them to have absorbencies in the visible region. (i) Coordination compounds are of great importance in biological systems. These metal atoms tend to form a protective layer on the surface. Uptake and Storage of Transition Metals. These aspects of coordination compounds/complex ions have been exploited in many ways. The color of the precipitate will indicate the metal. Coordination compounds are well‐known compounds that are being used as new materials for lithium storage because of their unique advantages, e.g., designable structures, abundant active sites, and facile and mild synthetic routes. Download books for free. Proteins that transfer electrons from one place to another are called electron-transfer proteins. Carbonic anhydrase active site: Active site of carbonic anhydrase. These metals are extracted by hydro-metallurgical processes requiring a lot of complex ions. Ligands are either anions or molecules that can donate electrons into the d-orbitals of the metal ion and form a bond. Iron is absorbed in the intestine, where it forms an Fe(III) complex with a protein called transferrin that is transferred to other cells for immediate use or storage in the form of ferritin. They are an integral component of proteins, especially the class of proteins that can perform chemical reactions, called enzymes. The colour of the coordination compounds containing transition metals causes them to be extensively used in industries for the colouration of materials. What are the advantages of having a metal ion at the active site of an enzyme? The protein environment can adjust the redox potential (E. The protein can adjust the structure of the metal complex to ensure that electron transfer is rapid. Subsequent sections discuss metallodrugs for a number of different applications, the design of new drugs … Coordination compounds are usually referred to as complexes, they can be charged or uncharged and their structure is defined by the coordination number (the number of ligand atoms bonded to the central atom) and their coordination geometry (the geometrical arrangement of the ligands and the symmetry of the entire complex). Therefore, they find a common place in industries for intense colourations. Those that form acid-insoluble sulfides, such as cadmium, bismuth, copper, antimony, and tin. The positively charged zinc ion polarizes the coordinated water molecule, and the nucleophilic attack by the negatively charged portion on carbon dioxide proceeds rapidly. Coordination complexes (also called coordination compounds) and transition metals are widespread in nature. Extraction of nickel and cobalt involves a major use of these compounds. Materials derived from chiral coordination compounds have attracted considerable interest due to the possibility to fine-tune their physical properties through versatile chemical synthesis. Coordination complexes can be used to analyze chemical composition by precipitation analysis and colorimetric analysis. Classical qualitative inorganic analysis is a method of analytical chemistry that seeks to find the elemental compositions of inorganic compounds. Homogeneous catalysis is a major application of coordination compounds for the production of organic substances. Application of Valence Bond Theory. This is an example of a biomolecule that contains non-protein ligands for a transition metal. A common method for treating carbon-monoxide poisoning is to have the patient inhale pure oxygen. deoxyhemoglobin--the sixth ligand is a water molecule which can be easiy replaced by molecular oxygen. 6H2O can be used to form a variety of nickel coordination complexes because the H2O ligands are rapidly displaced by ammonia, amines, thioethers, thiolates, and organophosphines. ; Metals can be purified by the formation and subsequent decomposition of their coordination compounds. Nearly all vitamin B12-catalyzed reactions are rearrangements that occur via a radical reaction. With the theory's application to a coordination compound, the real electrons from the d axis of the transition metal turn into unhybridized d-orbitals. These metals have more than one oxidation state. Metalloproteins also use the ability of transition metals to bind small molecules, such as O2, N2, and H2, to transport or catalyze the reactions of these small molecules. We describe a few example here and in the chemistry. Most electron-transfer proteins are metalloproteins, such as iron–sulfur proteins, cytochromes, and blue copper proteins that accept and donate electrons. Everyday low prices and free delivery on eligible orders. The metal is not involved in the actual catalytic reaction; it provides the enzyme with a convenient mechanism for generating an organic radical, which does the actual work. Many examples of similar reactions are now known that use metals other than cobalt to generate an enzyme-bound organic radical. Noble metals like silver and gold are extracted from their ore by the formation of cyanide … This review article compiles most promising applied Schiff bases and their complexes with their applications in different areas of life. Certain cyanide complexes K[Ag(CN) and K[Au(CN)] find applications in the electroplating of these noble metals. Coordination Compounds: Chemistry and Application Introduction Coordination compounds are metal ions surrounded by ligands. Inorganic ligands such as sulfide and oxide are also common. However, the electrode stability, low rate performance, and cycle life of coordination compounds are currently the main issues preventing their application as electrode materials, and the lithium‐storage mechanism in coordination networks is not well understood. Chelation is the formation or presence of two or more separate coordinate bonds between a polydentate (multiple bonded) ligand and a single central atom. Other metalloenzymes use transition-metal ions as Lewis acids to catalyze group transfer reactions. These complexes can be neutral or charged. Example: N 2 PtiC dParamagnetic Compounds: Th hi h t d t i t ti fi ldThose, which tend to move into a magnetic field. Synthetic coordination compounds are also used to bind to proteins and especially nucleic acids (e.g. Purification of metals can be achieved through formation and subsequent decomposition of their coordination compounds… application of coordination compounds in chemistry. Most transitions that are related to colored metal complexes are either d–d transitions or charge transfer bands. Objectives Coordination Compounds are the backbone of modern inorganic and bio–inorganic chemistry and chemical industry. Application of coordination compounds. Coordination Compounds for Medicine and Biology They are synthesized from the condensation of an amino compound with carbonyl compounds. In addition to donor groups that are provided by amino acid residues, a large number of organic cofactors function as ligands. Extraction of Metals. View All. Question From class 12 Chapter COORDINATION COMPOUNDS Applications Of Coordination Compounds 300+ LIKES. The characteristic properties possessed by coordination compounds that were discussed in the previous subsection make them extremely useful in various processes and industries. 70.3k VIEWS. Legal. Extraction of nickel and cobalt involves a major use of these compounds. Coordination compounds found their applications long before the establishment of inorganic chemistry. These compounds are widely present in the mineral, plant and animal worlds and are known to play many important functions in the area of analytical chemistry, metallurgy, biological function system, industry and medicine. The application of this field to biomedical uses is dealt with in 5 chapters. We describe a few illustration here and in the chemical science. To overcome the insolubility of Fe(OH)3, many bacteria use organic ligands called siderophores, which have high affinity for Fe(III) and are secreted into the surrounding medium to increase the total concentration of dissolved iron. The Ca 2+ and Mg 2+ ions form stable complexes with EDTA. Alfred Werner (1866-1919), a Swiss chemist was the first to formulate Important donor groups include: Given the diversity of metalloproteins, virtually all amino acid residues have been shown to bind metal centers. Among them, coordination compounds also play a key role in serving humanity as these compounds have a wide range of applications in health care from antimicrobial to anticancer, bioengineering, bio-mimetic models, catalysis, photosensitized materials etc. Color%2520of%2520various%2520Ni(II)%2520complexes%2520in%2520aqueous%2520solution. Organic chemistry deals with almost all carbon-containing compounds. ). Complexes or coordination compounds are molecules that posess a metal center that is bound to ligands (atoms, ions, or molecules that donate electrons to the metal). This reaction is very slow in the absence of a catalyst, but quite fast in the presence of the hydroxide ion. Coordination Compounds for Medicine and Biology The interaction of transition metal ions with biological molecules provides one of the most fascinating areas of coordination chemistry. porphyrins--complexes derived from porphine. These donor groups are often provided by side-chains on the amino acid residues. i) In analytical chemistry. All Uses of Butane in Everyday Life Properties - Side. 7.5k SHARES. 3. Lectures by Walter Lewin. applications of coordination compounds in our day to day life. Magnetic Properties of Coordination Complexes Diamagnetic Compounds: Those, which tend to move out of a magnetic field. For the Love of Physics - Walter Lewin - May 16, 2011 - Duration: 1:01:26. Class 12: Chemistry: Coordination Compounds: Applications of Coordination Compounds. To become familiar with some of the roles of transition-metal complexes in biological systems. 1. Importance and Applications of Coordination Compounds. The catalytic cycle produces the bicarbonate ion and the hydrogen ion as the equilibrium favors dissociation of carbonic acid at biological pH values. They are used in many qualitative and quantitative analysis. Learn the concepts of Class 12 Chemistry Coordination Compounds with Videos and Stories. I have started with the "drier" complexometric quantitative analytical applications and then moved on to topics that students say are among their favorites in the whole book. Coordination compounds are found in living systems and have many uses in the home, in industry and in medicines. Comprehensive coordination chemistry : the synthesis, reactions, properties & applications of coordination compounds Item Preview remove-circle Share or Embed This Item. These coordination compounds/complex ions differ appreciably from each other and also from their constituent species. A coordination complex, or metal complex, consists of an atom or ion (usually metallic) and a surrounding array of molecules or anions called ligands or complexing agents. subunits--folded long chains. We describe a few illustration here and in the chemical science. coordination compounds used in the chemical industry. These phenomena can be observed with the aid of electronic spectroscopy (also known as UV-Vis). Those that form insoluble hydroxide complexes, such as iron, aluminum, and chromium. Coordination complexes and transition metals are an integral component of proteins, especially the class of proteins that can perform chemical reactions, called enzymes. The process of iron uptake is best understood. The peptide backbone also provides donor groups; these include deprotonated amides and the amide carbonyl oxygen centers (oxygen and nitrogen atoms as ligands ). [latex]\text{H}_2\text{CO}_3\rightleftharpoons \text{HCO}_3^-+\text{H}^+[/latex]. Some of the major applications of the coordination compounds are described below. Application of coordination compounds 1. The application of this field to biomedical uses is dealt with in 5 chapters. Cordination compounds SlideShare. Applications Coordination compounds have specific colours. Uses of Coordination Compounds. These compounds are mostly used now days. 1. Example: Nickel, Copper can be extracted with the help of hydrometallurgical process involving coordination compounds. A huge number of metal complexes are used as catalysts in a variety of organic reactions (e.g., polymerizations, hydrogenations, additions, cross-coupling reactions, etc. Chelation therapy is the use of chelating agents to detoxify poisonous metal agents, such as mercury, arsenic, and lead, by converting them to a chemically inert form that can be excreted without further interaction with the body. The pigment responsible for photosynthesis, chlorophyll, is a coordination compound of magnesium. Coordination Compound poses 2-3 questions every year in JEE Main.An important aspect of inorganic chemistry comprising questions from theory as well as numerals. 6.1 Applications of Monodentate Complexes 6.2 Two Keys to the Stability of Transition Metal Complexes Hard and Soft Acids and Bases The Chelate Effect 6.3 Applications of Multidentate Complexes 6.4 Chelating Agents as Detergent Builders Proteins that contain one or more tightly bound metal ions are called metalloproteins, and metalloproteins that catalyze biochemical reactions are called metalloenzymes. Magnesium, lithium, sodium, potassium, and ammonium are difficult to precipitate and are usually detected by flame color. Coordination compounds play a vital role in analytical chemistry, metallurgy, biological systems, industry and medicine. Study one sub-topic (chosen as a small group), do a literature search, write a report and make a brief presentation to the class about the compounds and their chemistry and useful application. Those that form insoluble chlorides, such as lead, silver, and mercury. Precipitation%20of%20Silver%20on%20Copper%201. The iron–siderophore complex is absorbed by a cell, and the iron is released by reduction to Fe(II). Coordination compound By azim 2. Coordination chemistry plays an important role in the purification of metals. A coordination compound is any molecule that contains a coordination complex. A charge transfer band entails promotion of an electron from a metal-based orbital into an empty ligand-based orbital (Metal-to-Ligand Charge Transfer or MLCT). There are three possible dietary levels for any essential … Along with development of stable coordination compounds, their extensive structural studies are also in the main line of work for … 7.5k VIEWS. Finally the application of coordination compounds in general, the concept of coordination compounds in the extraction of metals from their ores too frequently these days. Coordination Compound. Question From class 12 Chapter COORDINATION COMPOUNDS Applications Of Coordination Compounds 300+ LIKES. Uses of coordination compounds. Brazier JN(1). Cyanide ions are used for the for the extraction of gold and silver. These coordination compounds/complex ions differ appreciably from each other and also from their constituent species. Some of these applications of coordination compounds can be found below. 23.7 Applications of Coordination Compounds. The fourth coordination site is occupied by a water molecule. A reaction similar to this is almost instantaneous with carbonic anhydrase. heme group--the iron-porphyrin combination. Mammals use the low pH of the stomach to increase the concentration of dissolved iron. Class 12 th NCERT is best advised to cover up the chapter along with previous year question paper.. The protein environment provides specificity, ensuring that the electron is transferred to only the desired site. Coordination complexes are found in many biomolecules, especially as essential ingredients for the active site of enzymes. Finally, some metalloenzymes use homolytic cleavage of the cobalt–carbon bond in derivatives of vitamin B12 to generate an organic radical that can abstract a hydrogen atom and thus cause molecular rearrangements to occur. The applications coordination compounds are of great importance. The donor atom is the atom within a ligand that is bonded to the central atom or ion. Cations are usually classified into six groups according to their categories, while anions are classified into three groups. Example: O 2 The extent of paramagnetism is measured in terms of the magnetic moment, μ.The (While many of the earlier cations will precipitate with carbonate, they will have been detected prior to this point if the steps have been followed in order.) They find applications in the dye and pigment industries. 69. i) In analytical chemistry. Dyes and Pigments: Coordination compounds have been utilized from prior times as dyes and pigments, for illustration madder dye that is red, was utilized by the ancient Greeks and others.

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