Gallium(III) cyanide

Chemical compound From Wikipedia, the free encyclopedia

Gallium(III) cyanide is a chemical compound of gallium with the formula Ga(CN)3. It is an air-sensitive white solid that decomposes at 450 °C.[1]

Quick facts Names, Identifiers ...
Gallium(III) cyanide
Names
Other names
  • Gallium tricyanide
Identifiers
3D model (JSmol)
ChemSpider
  • InChI=1S/3CN.Ga/c3*1-2;/q3*-1;+3
    Key: LRRAVXULCHBNIH-UHFFFAOYSA-N
  • [C-]#N.[C-]#N.[C-]#N.[Ga+3]
Properties
Ga(CN)3
Molar mass 147.78 g/mol
Appearance White solid
Melting point 450 °C (842 °F; 723 K)[1] (decomposes)
Reacts[1]
Solubility Soluble in THF and DMF, insoluble in hexane[1]
Structure[2]
Cubic
Pm3m
a = 5.295 Å
α = 90°, β = 90°, γ = 90°
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Production and reactions

Gallium(III) cyanide is produced by the reaction of gallium(III) chloride and trimethylsilyl cyanide at 75 °C:[1]

3 Me3SiCN + GaCl3 → 3 Me3SiCl + Ga(CN)3

The tetracyanogallate(III) ion can be produced by the reaction of Ga(CN)3 and LiCN or CuCN. It also forms adducts with pyridine to produce Ga(CN)3(NC5H5)2.[1][3]

References

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