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| Identifiers | |
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3D model (JSmol) | |
| ChemSpider |
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| Properties | |
| SeO2F2 | |
| Molar mass | 148.95 g/mol |
| Appearance | Gas. |
| Melting point | −99.5 °C (−147.1 °F; 173.7 K)[1] |
| Boiling point | −8.4 °C (16.9 °F; 264.8 K)[2] |
| Related compounds | |
Othercations | SO2F2 |
Related compounds | SeF6, SeO3 |
Except where otherwise noted, data are given for materials in theirstandard state (at 25 °C [77 °F], 100 kPa). | |
Selenoyl fluoride,selenoyl difluoride,selenium oxyfluoride, orselenium dioxydifluoride is achemical compound with theformula SeO2F2.
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]
Selenoyl fluoride can be formed by the action of warmfluorosulfonic acid onbarium selenate[5] orselenic acid. SeO3 + SeF4 can give this gas along with other oxyfluorides.
Selenoyl fluoride is more reactive than its analogonsulfuryl fluoride. It is easier to hydrolyse and to reduce. It may react violently upon contact withammonia.
Selenoyl fluoride reacting withxenon difluoride gives FXeOSeF5.[6]
