Triphenylphosphine selenide is an organophosphorus compound with the formula (C6H5)3PSe. It is a white solid which is soluble in most organic solvents. The compound is used in the preparation of other selenium compounds and is itself prepared by the reaction of triphenylphosphine with potassium selenocyanate.[2] Single crystals have been isolated with both monoclinic[3] and triclinic[4] structures (space groups: P21/c and P1 respectively); in both cases the geometry at phosphorus is tetrahedral.
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| Names | |
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| Preferred IUPAC name
Triphenyl-λ5-phosphaneselone | |
| Other names
triphenylphosphane selenide
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| Identifiers | |
3D model (JSmol)
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| ChemSpider | |
| ECHA InfoCard | 100.021.279 |
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PubChem CID
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| UNII | |
CompTox Dashboard (EPA)
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| Properties | |
| C18H15PSe | |
| Molar mass | 341.25 |
| Appearance | white solid |
| Melting point | 186.5 to 187.5 |
| insoluble | |
| Solubility | very soluble in dichloromethane, pyridine, and THF; moderately soluble on heating in acetonitrile, ethanol, and methanol; insoluble in ether[1] |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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See also
editReferences
edit- ^ Mayhew, D. L., Clive, D. L. J., Stawinski, J. and Bollmark, M. 2004. Triphenylphosphine Selenide. e-EROS Encyclopedia of Reagents for Organic Synthesis doi:10.1002/047084289X.rt378.pub2
- ^ Philip Nicpon, Devon W. Meek "Triphenylphosphine Selenide" Inorganic Syntheses, 1967, Volume 10, 157–159. doi:10.1002/9780470132418.ch23
- ^ Codding, P. W.; Kerr, K. A. (15 May 1979). "Triphenylphosphine selenide". Acta Crystallographica Section B. 35 (5): 1261–1263. Bibcode:1979AcCrB..35.1261C. doi:10.1107/S0567740879006129.
- ^ Jones, P. G.; Kienitz, C.; Thöne, C. (January 1994). "Crystal structure of triphenylphosphine selenide (triclinic), C18H15PSe". Zeitschrift für Kristallographie. 209 (1): 80–81. Bibcode:1994ZK....209...80J. doi:10.1524/zkri.1994.209.1.80.