Fluorine forms a great variety of chemical compounds, within which it always adopts an oxidation state of −1. [26], From Infogalactic: the planetary knowledge core, "AgF" redirects here. AgF2 is a strong fluorinating and oxidising agent. In 1993, AgF2 cost between 1000-1400 US dollars per kg. Hydrogen fluoride boils near room temperature, much higher than other hydrogen halides. Hydrates are also known. It decomposes on contact with light or water vapor but is otherwise stable in storage. Neutron diffraction studies, however, confirmed its description as silver(II). The rock salt structure is adopted by the other silver monohalides. [16]:7367 It can also be used as a desulfuration-fluorination reagent on thiourea derived substrates. silver(II) fluoride. It reacts with water to form oxygen gas:[citation needed], AgF2 can be used to selectively fluorinate pyridine at the ortho position under mild conditions. Silver (II) fluoride. The Pt-F bond lengths are 185 picometers. It is used as a fluorinating agent. It is light sensitive. Both are located on special sites of the space group C2/c. Sinks and mixes with water. In 1993, AgF2 cost between 1000-1400 US dollars per kg. Structure, properties, spectra, suppliers and links for: Silver diammine fluoride, 34445-07-3. [5]:3737, In contrast with the other silver halides, anhydrous silver(I) fluoride is not appreciably photosensitive, although the dihydrate is. The carbon atoms belong to two C 6F 5 groups, which act as bridging ligands [6] This type of reaction can occur in three different ways (here Z refers to any element or group attached to carbon, X is a halogen): Similar transformations can also be effected using other high valence metallic fluorides such as CoF3, MnF3, CeF4, and PbF4. It is light sensitive. Approximately 14 kcal/mol (59 kJ/mol) separate the ground and first excited states. [9], AgF2 is a very strong oxidizer that reacts violently with water,[10] reacts with dilute acids to produce ozone, oxidizes iodide to iodine,[10][11] and upon contact with acetylene forms the contact explosive silver acetylide. AgF2 can be synthesized by fluorinating Ag2O with elemental fluorine. Halogenation is a chemical reaction that involves the addition of one or more halogens to a compound or material. The AgI[AgIIIF4] was found to be present at high temperatures, but it was unstable with respect to AgF2.[4]. [9], AgF2 is a very strong oxidizer that reacts violently with water, [10] reacts with dilute acids to produce ozone, oxidizes iodide to iodine, [10] [11] and upon contact with acetylene forms the contact explosive silver acetylide. For many elements the highest known oxidation state can be achieved in a fluoride. It reacts with strong Lewis acids to form salts of the KrF+ and Kr2F+3 cations. [23][24][25] Due to the instability of concentrated AgF solutions, silver diamine fluoride (Ag(NH3)2F) is now more commonly used. It is a rare example of a silver(II) compound. Silver difluoride. With other atoms, fluorine forms either polar covalent bonds or ionic bonds. The lattice parameter is 4.936(1) Å, significantly lower than those of AgCl and AgBr. It is a colourless liquid that reacts readily with water. AgF2 is also used in the fluorination of aromatic compounds, although selective monofluorinations are more difficult:[7], AgF2 oxidises xenon to xenon difluoride in anhydrous HF solutions.[8]. This page was last modified on 22 December 2015, at 13:21. Silver(I) fluoride is the inorganic compound with the formula AgF. It reacts with water to form oxygen gas:[ citation needed ], AgF2 can be used to selectively fluorinate pyridine at the ortho position under mild conditions. [6]:563 The high frequency refractive index is 1.73(2). It also oxidises carbon monoxide to carbonyl fluoride. 7783-95-1 3D model . It is one of the three main fluorides of silver, the others being silver subfluoride and silver(II) fluoride. [4]. It is one of seventeen known binary hexafluorides. At ambient temperature and pressure, silver(I) fluoride exists as the polymorph AgF-I, which adopts a cubic crystal system with space group Fm3m in the Hermann–Mauguin notation. Platinum hexafluoride is the chemical compound with the formula PtF6, and is one of seventeen known binary hexafluorides. [12] It is light-sensitive, [10] very hygroscopic and corrosive. It is used as a fluorinating agent. Silver(II) fluoride Names IUPAC name. Silver(I) fluoride, 99%. Silver(1+) fluoride--ammonia (1/1/2) LS-145397. The compound is produced by the reaction of silver and silver(I) fluoride:[1]. It is used in the fluorination and preparation of organic perfluorocompounds. Silver(II) fluoride is a chemical compound with the formula AgF2. Interactive image; ChemSpider: 10802085 ECHA InfoCard: 100.029.124: EC … It is produced by the chemical reaction of xenon with fluorine, F2, according to the chemical equation: Xenon hexafluoride is a noble gas compound with the formula XeF6. It is possible to coat a silicon surface with a uniform silver microlayer (0.1 to 1 μm thickness) by passing AgF vapour over it at 60–800 °C. The anhydrous compound is a hygroscopic brown solid. Hydrogen fluoride is a chemical compound with the chemical formula HF. Préparation. It also oxidises carbon monoxide to carbonyl fluoride. Silver subfluoride is the inorganic compound with the formula Ag 2 F. This is an unusual example of a compound where the oxidation state of silver is fractional. Neutronand X-ray diffraction studies have further shown that at 2.70(2) GPa, a structural transition occurs to a s… [3]:150, High-purity silver(I) fluoride can be produced by the heating of silver carbonate to 310 °C under a hydrogen fluoride environment, in a platinum tube:[4]:9. PtF6 is octahedral in both the solid state and in the gaseous state. The rock salt structure adopted by the other silver monohalides. [6]:562 Neutron and X-ray diffraction studies have further shown that at 2.70(2) GPa, a structural transition occurs to a second polymorph (AgF-II) with the caesium chloride structure, and lattice parameter 2.945 Å. It is a rare example of a silver(II) compound. AgF has relatively few niche applications; it has been employed as a fluorination and desilylation reagent in organic synthesis and in aqueous solution as a topical caries treatment in dentistry. CS-0015954. [9], AgF2 is a very strong oxidizer that reacts violently with water,[10] reacts with dilute acids to produce ozone, oxidizes iodide to iodine,[10][11] and upon contact with acetylene forms the contact explosive silver acetylide. The compound is produced by the reaction of silver and silver(I) fluoride:. PubChem Substance ID 24853595. The compound is a unique example of platinum in the +6 oxidation state. Silver fluoride (AgF) silver(I)fluoride. Both are located on special sites of the space group C2/c. Y-8981. [1] [2]. It is a rare example of a silver(II) compound. Cobalt(III) fluoride is the inorganic compound with the formula CoF3. Inorganic compounds such as metals also undergo halogenation. It is one of the densest known gases under standard conditions. This layer serves as a low-resistivity metallic "interconnect". AgF2 can be purchased from various suppliers, the demand being less than 100 kg/year. The F/Ag ratio for most samples is < 2, typically approaching 1.75 due to contamination with Ag and oxides and carbon. Silver usually exists in its +1 oxidation state. Lutetium(III) fluoride is an inorganic compound with a chemical formula LuF3. Molecules containing fluorine may also exhibit hydrogen bonding. It is used in the fluorination and preparation of organic perfluorocompounds. Silver diamine fluoride (SDF) is a liquid substance made of silver, water, fluoride, and ammonia. The F/Ag ratio for most samples is < 2, typically approaching 1.75 due to contamination with Ag and oxides and carbon. Like most covalent inorganic fluorides it is moisture-sensitive. Approximately 14 kcal/mol (59 kJ/mol) separate the ground and first excited states. This is an unusual example of a compound where the oxidation state of silver is fractional. [25]:26 Preparation is by the addition of ammonia to aqueous silver fluoride solution or by the dissolution of silver fluoride in aqueous ammonia. In the crystal structure of AgC 6F 5¢CH 3CH 2CN, two crystallographically different Ag atoms are found. La synthèse en laboratoire de … Chemister Chemical Database, Kiper Ruslan Anatolievich, 2002-15. It is a dark-red volatile solid that forms a red gas. Ce composé peut être obtenu avec un haut niveau de pureté en chauffant du carbonate d'argent à 310 °C sous une atmosphère de fluorure d'hydrogène, dans un tube de platine . Vanadium(V) fluoride is the inorganic compound with the chemical formula VF5. It is one of the three main fluorides of silver, the others being silver subfluoride and silver(II) fluoride.

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