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Selenium tetrafluoride (Se F 4) is an inorganic compound.It is a colourless liquid that reacts readily with water. It can be used as a fluorinating reagent in organic syntheses (fluorination of alcohols, carboxylic acids or carbonyl compounds) and has advantages over sulfur tetrafluoride in that milder conditions can be employed and it is a liquid rather than a gas.
Selenium tetrafluoride is a laboratory-scale fluorinating agent. The only stable chlorides are selenium tetrachloride (SeCl 4) and selenium monochloride (Se 2 Cl 2), which might be better known as selenium(I) chloride and is structurally analogous to disulfur dichloride.
2 KF + SeOCl 2 → 2 KCl + SeOF 2. It can also be produced by the reaction of selenium tetrafluoride with water or selenium dioxide. [2] SeF 4 + H 2 O → SeOF 2 + 2 HF SeF 4 + SeO 2 → 2 SeOF 2. The reaction of selenium dioxide and sulfur tetrafluoride also produces seleninyl fluoride. [4] SeO 2 + SF 4 → SeOF 2 + SOF 2
Pentafluoroselenium hypofluorite can also formed from selenium oxyfluoride and fluorine gas in the presence of potassium fluoride. [4] [5] SeOF 2 + KF → K + [SeOF 3] − — F 2 → K + [SeOF 5] − — F 2 → KF + SeOF 6. The reaction of fluorine gas and Hg(OSeF 5) 2 produces SeOF 6 in much higher yield and with less SeF 6. [3]
Download QR code; Print/export Download as PDF; Printable version; In other projects ... Selenium fluoride may refer to: Selenium tetrafluoride (selenium(IV) fluoride
Selenium can exist with oxidation state −2, +2, +4, +6. Se(II) is the dominant form in organoselenium chemistry. Se(II) is the dominant form in organoselenium chemistry. Down the group 16 column, the bond strength becomes increasingly weaker (234 kJ / mol for the C−Se bond and 272 kJ/mol for the C−S bond) and the bond lengths longer ( C ...
Lead tetrafluoride, PbF 4; Manganese tetrafluoride, MnF 4; Mercury tetrafluoride, HgF 4 (dubious) Molybdenum tetrafluoride, MoF 4; Neodymium tetrafluoride, NdF 4 [1] Neptunium tetrafluoride, NpF 4; Niobium tetrafluoride, NbF 4; Oganesson tetrafluoride, OgF 4 (predicted) [2] Osmium tetrafluoride, OsF 4; Palladium tetrafluoride, PdF 4; Platinum ...
Selenium is a component of the amino acids selenocysteine and selenomethionine. In humans, selenium is a trace element nutrient that functions as cofactor for glutathione peroxidases and certain forms of thioredoxin reductase. [1] Selenium-containing proteins are produced from inorganic selenium via the intermediacy of selenophosphate (PSeO 3 3 ...