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| Names | |
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| IUPAC name Protactinium(V) chloride | |
| Other names Protactinium pentachloride, Protactinium chloride | |
| Identifiers | |
| CAS Number | |
| 3D model (JSmol) | |
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| Properties | |
| Chemical formula | PaCl5 |
| Molar mass | 408.301 g/mol |
| Appearance | yellow monoclinic crystals |
| Density | 3.74 g/cm |
| Melting point | 306 °C (583 °F; 579 K) |
| Boiling point | 420 °C (788 °F; 693 K) |
| Structure | |
| Crystal structure | monoclinic, mS24 |
| Space group | c12/c1, #15 |
| Coordination geometry | Pa, 7, pentagonal bipyramidal Cl, 1 and 2 |
| Related compounds | |
| Other anions | Protactinium(V) fluoride Protactinium(V) bromide Protactinium(V) iodide |
| Other cations | Praseodymium(III) chloride Uranium(IV) chloride Thorium(IV) chloride |
| Related compounds | Protactinium(IV) chloride |
| Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa). Infobox references | |
Protactinium(V) chloride is the chemical compound composed of protactinium and chlorine with the formula PaCl5. It forms yellow monoclinic crystals and has a unique structure composed of chains of 7 coordinate, pentagonal bipyramidal, protactinium atoms sharing edges.
Protactinium(V) chloride can react with boron tribromide at high temperatures to form protactinium(V) bromide. It also reacts with fluorine to form protactinium(V) fluoride at high temperatures.
See also
References
- ^ Lide, David R. (1998). Handbook of Chemistry and Physics (87 ed.). Boca Raton, FL: CRC Press. p. 484. ISBN 0849305942. Retrieved 2008-07-17.
- "Chemistry: WebElements Periodic Table: Professional Edition: Protactinium: compound data (protactinium (V) chloride)". WebElements. Retrieved 2008-07-17.
- R. P. Dodge, G. S. Smith, Q. Johnson, R. E. Elson: „The Crystal Structure of Protactinium Pentachloride“, Acta Crystallogr., 1967, 22, 85–89; doi:10.1107/S0365110X67000155.
- ^ Georg Brauer (Hrsg.), unter Mitarbeit von Marianne Baudler u. a.: Handbuch der Präparativen Anorganischen Chemie. 3., umgearbeitete Auflage. Band I, Ferdinand Enke, Stuttgart 1975, ISBN 3-432-02328-6, S. 1177.
| Protactinium compounds | |
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| Pa(II) | |
| Pa(III) | |
| Pa(IV) | |
| Pa(V) | |
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