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Pentaneiobium Tetraselenide

Pentaneiobium tetraselenide is a binary inorganic compound of niobium and selenium with the formula Nb 5 Se 4 , crystals.

Pentaneiobium Tetraselenide
Are common
Systematic
name
Pentaneiobium Tetraselenide
Traditional namesSelenium niobium
Chem. formulaNb 5 Se 4
Physical properties
conditioncrystals
Molar mass780.37 g / mol
Density7.7 g / cm³
Classification
Reg. CAS number12035-10-8

Content

Getting

  • Fusion of stoichiometric amounts of pure substances:
fiveNb+fourSe→600oCNbfiveSefour{\ displaystyle {\ mathsf {5Nb + 4Se \ {\ xrightarrow {600 ^ {o} C}} \ Nb_ {5} Se_ {4}}}}  

Physical Properties

Pentaneiobium tetraselenide forms tetragonal syngony crystals, space group I 4 / m , cell parameters a = 0.9871 nm, c = 0.34529 nm, Z = 2 [1] .

Notes

  1. ↑ Selte Kari, Kjekshus Arne. The Crystal Structures of Nb 5 Se 4 and Nb 5 Te 4 // Acta Chemica Scandinavica. - 1963.- T. 17 . - S. 2560-2562 . - DOI : 10.3891 / acta.chem.scand.17-2560 .

Literature

  • State Diagrams of Double Metal Systems / Ed. N.P. Lyakisheva. - M .: Engineering, 2001. - T. 3 Book 1. - 972 p. - ISBN 5-217-02843-2 .
  • Masafumi Fukuto, Marc D. Hornbostel, David C. Johnson. Use of Superlattice Structure To Control Reaction Mechanism: Kinetics and Energetics of Nb 5 Se 4 Formation // J. Am. Chem. Soc .. - 1994 .-- T. 116 . - S. 9136-9140 .


Source - https://ru.wikipedia.org/w/index.php?title=Pentaniobium tetraselenide&oldid = 80370946


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