Organometallic route to dimolybdenum carbide via a low-temperature pyrolysis of a dimolybdenum alkyne complex

Pyrolytic transformation of the complex Cp2Mo2(CO)4(dmad) (Cp = cyclopentadienyl, dmad = dimethylacetylenedicarboxylate) under hydrogen at 550 C gives, after a passivation step, Mo2C with an excess of carbon and oxygen. These impurities can be withdrawn with an appropriate reductive post-treatment....

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Veröffentlicht in:	Journal of materials science 1993-05, Vol.28 (9), p.2449-2454
Hauptverfasser:	GIRAUDON, J.-M, LECLERCQ, L, LECLERCQ, G, LOFBERG, A, FRENNET, A
Format:	Artikel
Sprache:	eng
Schlagworte:	Chemistry Exact sciences and technology Organic chemistry Organometalloidal and organometallic compounds Preparations and properties Transition metals derivatives
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	Pyrolytic transformation of the complex Cp2Mo2(CO)4(dmad) (Cp = cyclopentadienyl, dmad = dimethylacetylenedicarboxylate) under hydrogen at 550 C gives, after a passivation step, Mo2C with an excess of carbon and oxygen. These impurities can be withdrawn with an appropriate reductive post-treatment. Based on TGA and pyrolysis mass spectroscopy performed on the precursors, a preliminary decomposition mechanism has been proposed. 8 refs.
ISSN:	0022-2461 1573-4803
DOI:	10.1007/BF01151678