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Group 13-16 Precursors: What Controls Their Volatility?

Published online by Cambridge University Press:  10 February 2011

Edward G. Gillan ,
Simon G. Bott  and
Andrew R. Barron
Edward G. Gillan
Affiliation:
Department of Chemistry, Rice University, Houston, TX 77005
Simon G. Bott
Affiliation:
Department of Chemistry, University of North Texas, Denton, TX 76203
Andrew R. Barron
Affiliation:
Department of Chemistry, Rice University, Houston, TX 77005
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Abstract

The volatility of a series of group 13–16 cubane compounds, [(R)ME]4 (M = Al, Ga; E = S, Se, Te) has been investigated by thermogravimetric analysis. The effects of the M4E4 core, the ligand (R), and molecular packing on the relative sublimation temperature and the activation energy of sublimation are discussed. For any given ligand type (e.g., [(tBu)ME] 4) volatility is dependent on the compound's molecular mass. The volatility of a homologous series (e.g., [(R)GaS] 4) is proposed to be dependent on the interlocking of the ligands in the solid state. In contrast, the energy of activation for sublimation (Ea) may be related to the molecular packing of the cubane cores in the solid state.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 415: Symposium BB – Metal-Organic Chemical Vapor Deposition of Electronic Ceramics II , 1995 , 87
Copyright
Copyright © Materials Research Society 1996

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References

REFERENCES

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