Protactinium(V) chloride

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.[3]

Protactinium(V) chloride
Names
IUPAC name
Protactinium(V) chloride
Other names
Protactinium pentachloride, Protactinium chloride
Identifiers
3D model (JSmol)
ChemSpider
  • InChI=1S/5ClH.Pa/h5*1H;/q;;;;;+5/p-5
    Key: QRPCDPJECLHYKR-UHFFFAOYSA-I
  • Cl[Pa](Cl)(Cl)(Cl)Cl
Properties
PaCl5
Molar mass 408.301 g/mol
Appearance yellow monoclinic crystals[1]
Density 3.74 g/cm3[1]
Melting point 306 °C (583 °F; 579 K)[1]
Boiling point 420 °C (788 °F; 693 K)[2]
Structure
monoclinic, mS24
c12/c1, #15
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 [77 °F], 100 kPa).
Infobox references

Protactinium(V) chloride can react with boron tribromide at high temperatures to form protactinium(V) bromide.[4] It also reacts with fluorine to form protactinium(V) fluoride at high temperatures.[4]

See also
  • Protactinium(IV) chloride

References
  1. Lide, David R. (1998). Handbook of Chemistry and Physics (87 ed.). Boca Raton, FL: CRC Press. p. 484. ISBN 0849305942. Retrieved 2008-07-17.
  2. "Chemistry: WebElements Periodic Table: Professional Edition: Protactinium: compound data (protactinium (V) chloride)". WebElements. Retrieved 2008-07-17.
  3. 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.
  4. 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.


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