Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/95292
Title: Thermal degradation of transition metal carbonyl complexes. Part IV: Thermogravimetric studies of various stoichiometric mixtures of trimethylamine N-oxide dihydrate and hexacarbonyl molybdenum
Authors: Chan, H.S.O. 
Hor, T.S.A. 
Leong, Y.P.
Issue Date: 20-Jun-1989
Source: Chan, H.S.O.,Hor, T.S.A.,Leong, Y.P. (1989-06-20). Thermal degradation of transition metal carbonyl complexes. Part IV: Thermogravimetric studies of various stoichiometric mixtures of trimethylamine N-oxide dihydrate and hexacarbonyl molybdenum. Thermochimica Acta 145 (C) : 179-187. ScholarBank@NUS Repository.
Abstract: The effect of (CH3)3NO·2H2O on the thermal degradation of Mo(CO)6 in nitrogen was studied by thermogravimetry (TG) and derivative thermogravimetry (DTG). Pure Mo(CO)6 and (CH3)3NO readily sublime without decomposition. On mixing and heating, oxidative decarbonylation readily occurs, followed by substitution. This yields Mo(CO)6-n[(CH3)3N]n and CO2. The substituted carbonyl complexes undergo further ligand cleavage and disintegrate into metal residue. In a stoichiometric ratio of greater than 3:1 for (CH3)3NO· 2H2O:Mo(CO)6, free and excess amine oxide are detected in the TG profile, which lends strong support to the formation of the tricarbonyl Mo(CO)3[(CH3)3N]3, but not the higher substituted analogues. © 1989.
Source Title: Thermochimica Acta
URI: http://scholarbank.nus.edu.sg/handle/10635/95292
ISSN: 00406031
Appears in Collections:Staff Publications

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