Английская Википедия:Germanium monosulfide

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Шаблон:Chembox

Germanium monosulfide or Germanium(II) sulfide is the chemical compound with the formula GeS. It is a chalcogenide glass and a semiconductor.[1] Germanium sulfide is described as a red-brown powder or black crystals.[2] Germanium(II) sulfide when dry is stable in air, hydrolyzes slowly in moist air but rapidly reacts in water forming Ge(OH)2 and then GeO.[3] It is one of a few sulfides that can be sublimed under vacuum without decomposition.[4]

Preparation

First made by Winkler by reducing GeS2 with Ge.[3] Other methods include reduction in a stream of H2 gas,[3] or with an excess of H3PO2 followed by vacuum sublimation.[2]

Structure

It has a layer structure similar to that of black phosphorus.[2] The Ge-S distances range from 247 to 300 pm.[3] Molecular GeS in the gas phase has a Ge-S bond length of 201.21 pm.[5]

References

Шаблон:Reflist

Шаблон:Germanium compounds Шаблон:Sulfides

  1. Шаблон:Cite journal
  2. 2,0 2,1 2,2 Шаблон:Greenwood&Earnshaw2nd
  3. 3,0 3,1 3,2 3,3 E. G. Rochow, E. W. Abel ,1973, The Chemistry of Germanium Tin and Lead, Pergamon Press, Шаблон:ISBN
  4. Michael Binnewies, Robert Glaum, Marcus Schmidt, Peer Schmidt, 2012, Chemical Vapor Transport Reactions, De Gruyter, Шаблон:ISBN
  5. Шаблон:RubberBible87th