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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.
Seleninyl fluoride can be produced by the reaction of selenium oxychloride and potassium fluoride. [3] 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
This exercise generates the diagram at right (Figure 1). Three molecular orbitals result from the combination of the three relevant atomic orbitals, with the four electrons occupying the two MOs lowest in energy – a bonding MO delocalized across all three centers, and a non-bonding MO localized on the peripheral centers.
Download as PDF; Printable version; In other projects Wikidata item; Appearance. ... Selenium fluoride may refer to: Selenium tetrafluoride (selenium(IV) fluoride ...
Selenium tetrafluoride, SeF 4, a liquid at standard conditions Silicon tetrafluoride , SiF 4 or Tetrafluorosilane Sulfur tetrafluoride , SF 4 , a gas at standard conditions
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.
Relationship between survival of juvenile salmon and concentration of selenium in their tissues after 90 days (Chinook salmon [143]) or 45 days (Atlantic salmon [144]) exposure to dietary selenium. The 10% lethality level (LC10=1.84 μg/g) was derived by applying the biphasic model of Brain and Cousens [145] to only the Chinook salmon data. The ...
Selenium tetrabromide exists in two polymorphs, the trigonal, black α-SeBr 4 and the monoclinic, orange-reddish β-SeBr 4, both of which feature tetrameric cubane-like Se 4 Br 16 units but differ in how they are arranged. [1]