ISSN:
1573-4846
Keywords:
precursor
;
bimetallic alkoxides
;
modification
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract Successful synthesis of a variety of volatile and alcohol soluble heterometal alkoxides (with 2, 3, 4, or more different metals in the same monomeric molecule) with chelating ligands, e.g., {A1(OPri)4}−, {Zr2(OPri)9}−, and {Nb(OPri)6}− around a central metal atom, which may also be bound with simpler ligands also like (OR)−, (acac)−, (acetate)− has not only added a new dimension to the stable multi-metal coordination systems, but has opened up the possibilities of designing a molecular precursor corresponding to the targeted material. It has been shown that the final material obtained from these is more homogeneous than that obtained from the use of mixtures of component metal alkoxides. More recent synthesis of soluble bimetallic oxide-alkoxides like magnesium μ-oxotetraisopropoxyaluminate has provided an array of novel precursors which are easier to handle due to their lesser tendency of hydrolyzability by atmospheric moisture. Investigations on the mechanism of the reactivity of the above precursors with water as well as methanol (for comparison) and other protic reagents like β-diketonates and carboxylic acids are being currently pursued in the research school of Mehrotra.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00486204
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