Scandium dodecaboride

Scandium dodecaboride
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Template:Longitem	ScB12
Molar mass	174.69 g/mol
Template:Longitem	Tetragonal, tI26
Template:Longitem	I4/mmm, No. 139

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Scandium dodecaboride is a refractory metal boride.

Synthesis

ScB₁₂ is formed by mixing a 7:1 ratio of boron powder and scandium oxide powder, heating to 2500 °C with a plasma torch or similar, quenching in cold water and washing with concentrated hydrochloric acid.^[1]

Crystallography

ScB₁₂ was originally reported as having a cubic structure,^[2] later studies showed it to have tetragonal structure (unit cell with a=522pm, c=735pm).^[1] More recently it has been shown that there is indeed a cubic form but that it requires stabilization.^[3]

References

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[1]

[2]

[3]

Scandium dodecaboride

Synthesis

Crystallography

References

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