Niobium(V) chloride

Niobium(V) chloride
Sample of niobium(V) chloride
Names
IUPAC names
Niobium(V) chloride
Niobium pentachloride
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.030.042 Edit this at Wikidata
EC Number
  • 233-059-8
RTECS number
  • QU0350000
UNII
  • InChI=1S/5ClH.Nb/h5*1H;/q;;;;;+5/p-5
    Key: YHBDIEWMOMLKOO-UHFFFAOYSA-I
  • Cl[Nb](Cl)(Cl)(Cl)Cl
  • dimer: Cl[Nb-]1(Cl)(Cl)(Cl)[Cl+][Nb-]([Cl+]1)(Cl)(Cl)(Cl)Cl
Properties
NbCl5
Molar mass 270.17 g/mol
Appearance yellow monoclinic crystals
deliquescent
Density 2.75 g/cm3
Melting point 204.7 °C (400.5 °F; 477.8 K)
Boiling point 248.2 °C (478.8 °F; 521.3 K)
decomposes
Solubility HCl, chloroform, CCl4
Thermochemistry
214.05 J K−1 mol−1
-797.47 kJ/mol
Hazards
GHS labelling:
GHS05: CorrosiveGHS07: Exclamation mark
Danger
H302, H312, H314, H332
P260, P261, P264, P270, P271, P280, P301+P312, P301+P330+P331, P302+P352, P303+P361+P353, P304+P312, P304+P340, P305+P351+P338, P310, P312, P321, P322, P330, P363, P405, P501
Flash point Non-flammable
Related compounds
Other anions
Niobium(V) fluoride
Niobium(V) bromide
Niobium(V) iodide
Other cations
Vanadium(IV) chloride
Tantalum(V) chloride
Related niobium chlorides
Niobium(III) chloride
Niobium(IV) chloride
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Niobium(V) chloride, also known as niobium pentachloride, is a yellow crystalline solid. It hydrolyzes in air, and samples are often contaminated with small amounts of NbOCl3. It is often used as a precursor to other compounds of niobium. NbCl5 may be purified by sublimation.[1]

  1. ^ Cotton, F. Albert; Wilkinson, Geoffrey (1980), Advanced Inorganic Chemistry (4th ed.), New York: Wiley, ISBN 0-471-02775-8