Niobium disulfide

Source: Wikipedia, the free encyclopedia.
Niobium disulfide

NbS2 exfoliated layer

NbS2 structure
Names
IUPAC name
niobium(IV) sulfde, niobium disulfde
Identifiers
3D model (
JSmol
)
ChemSpider
  • Key: VRSMQRZDMZDXAU-UHFFFAOYSA-N
  • InChI=1S/Nb.2S
  • S=[Nb]=S
Properties
NbS2
Molar mass 157.038 g/mol[1]
Appearance Black crystals[1]
Density 4.4 g/cm3[1]
+120·10−6 cm3/mol[2]
Structure[3]
Trigonal, hR9, No. 160
R3m
a = 0.333 nm, b = 0.333 nm, c = 1.78 nm
α = 90°, β = 90°, γ = 120°
3
Related compounds
Other anions
 Niobium diselenide, Niobium ditelluride
Other cations
Tantalum disulfide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
☒N verify (what is checkY☒N ?)

Niobium disulfide is the chemical compound with the formula NbS2. It is a black layered solid that can be exfoliated into ultrathin grayish sheets similar to other transition metal dichalcogenides. These layers exhibit superconductivity, where the transition temperature increases from ca. 2 to 6 K with the layer thickness increasing from 6 to 12 nm, and then saturates with thickness.[4]

References

Wikimedia Commons has media related to Niobium disulfide.
  1. ^
    ISBN 0-8493-0486-5
    .
  2. ISBN 978-94-010-1478-6
    .
  3. doi:10.1002/pssa.2210990108
    .
  4. doi:10.7567/1882-0786/aaff89
    .
Retrieved from "https://en.wikipedia.org/w/index.php?title=Niobium_disulfide&oldid=1196538206"