Group 12 molecular precursors

Two principle strategies have been employed for the synthesis of siloxide-containing molecular precursors. The first involves a silanolysis, or condensation, reaction of the Si - OH groups with a metal amido, alkyl, hahde, or alkoxide complex. The second method involves salt metathesis reactions of an alkali metal siloxide with a metal hahde. Much of our work has been focused on formation of tris(tert-butoxy)siloxide derivatives of the early transition metals and main group elements. The largely imexplored regions of the periodic table include the lanthanides and later transition metals. 

The only group 8 tris(ferf-butoxy)siloxide molecular precursor that has been reported thus far is the iron(III) complex Fe[OSi(O Bu)3]3 THE, synthesized via the reaction of FeCls with NaOSi(0 Bu)3 in THF (74%) [71,97] (Eq. 6). An... 

The surface chemistry of the nanocarbon is required to be suitable for the chosen molecular precursor. In contrast to the ex situ approach, functionalization of the nanocarbon is not explicitly required, however the presence of functional groups and... 

Vittal JJ, Deivaraj TC (2002) Group 11 and 13 metal thiocarboxylate compounds as single source molecular precursor for bulk metal sulfide materials and thin films. Progress in Crystal Growth and Characterization of Materials 45(1-2), 21-27... 

The network operates through a series of enzyme-catalyzed reactions that constitute the metabolism. Each of the consecutive steps in a metabolic pathway brings about a specific chemical change, usually the removal, transfer, or addition of a particular atom or functional group. The precursor is converted into a product through a series of metabolic intermediates called metabolites. The term intermediary metabolism is often applied to the combined activities of all the metabolic pathways that interconvert precursors, metabolites, and products of low molecular weight. 

---