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Chemical formula. F 2 O Se: Molar mass: 132.967 g·mol −1 Appearance ... Seleninyl fluoride is an oxyfluoride of selenium with the chemical formula SeOF 2. Preparation
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.
The shape of the molecule is a distorted tetrahedron with the O-Se-O angle being 126.2°, the O-Se-F angle being 108.0° and F-Se-F being 94.1°. [3] The Se-F bond length is 1.685 Å and the selenium to oxygen bond is 1.575 Å long. [4]
name formula ratio SeO 3:F . mw system space group unit cell Å volume density optical references scandium selenite fluoride ScSeO 3 F : 1:1 triclinic P 1 <13 : −173°C a=6.2769 b=6.5578 c=4.0627 α=95.478 β=95.332 γ=92.363 Z=2
Since 2010, more than 150 towns or counties throughout the country have voted to keep fluoride out of public water systems or to stop adding it, according to the Fluoride Action Network, an anti ...
Selenium fluoride may refer to: Selenium tetrafluoride (selenium(IV) fluoride), SeF 4; Selenium hexafluoride (selenium(VI) fluoride), SeF 6
Because the fluoride anion is highly basic, many alkali metal fluorides form bifluorides with the formula MHF 2. Sodium and potassium bifluorides are significant to the chemical industry. [ 2 ] Among other monofluorides, only silver(I) [ 3 ] and thallium(I) [ 4 ] fluorides are well-characterized.
Selenium oxydichloride can be prepared by several methods, and a common one involves the conversion of selenium dioxide to dichloroselenious acid followed by dehydration: [3] SeO 2 + 2 HCl → Se(OH) 2 Cl 2 Se(OH) 2 Cl 2 → SeOCl 2 + H 2 O. The original synthesis involved the redistribution reaction of selenium dioxide and selenium tetrachloride.