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Hafnium dyslenide

Hafnium dyslenide is a binary inorganic compound of hafnium and selenium with the formula HfSe 2 , crystals.

Hafnium dyslenide
General
Systematic
name
Hafnium dyslenide
Traditional namesSelenium hafnium
Chem. formulaHfse 2
Physical properties
conditioncrystals
Molar mass336.41 g / mol
Density7.3 g / cm³
Classification
Reg. CAS number12162-21-9
Reg. EINECS number235-300-2

Getting

  • Fusion of stoichiometric amounts of pure substances:
Hf+2Se→THfSe2{\ displaystyle {\ mathsf {Hf + 2Se \ {\ xrightarrow {T}} \ HfSe_ {2}}}}  

Physical Properties

Hafnium dislenide forms trigonal crystal crystals, space group P 3 m1 , cell parameters a = 0.3784 nm , c = 0.6159 nm , Z = 1 , cadmium diiodide type structure CdI 2 [1] [2] .

The compound is a semiconductor .

Notes

  1. ↑ State Diagrams of Double Metal Systems / Ed. N.P. Lyakisheva. - M .: Metallurgy, 1997 .-- T. 2 .-- 1024 p. - ISBN 5-217-01569-1 .
  2. ↑ B. Predel. Hf-Se (Hafnium-Selenium) // Landolt-Börnstein - Group IV Physical Chemistry. - 1996. - T. 5f . - S. 1 . - DOI : 10.1007 / 10501684_1603 .


Source - https://ru.wikipedia.org/w/index.php?title=Dafenium_gafnium&oldid=89427688


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