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Is water a friend or foe in organometallic chemistry? The case of group 13 organometallic compounds

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Title Is water a friend or foe in organometallic chemistry? The case of group 13 organometallic compounds
 
Creator ROESKY, HW
WALAWALKAR, MG
MURUGAVEL, R
 
Subject organo-aluminum compounds
structural characterization
tert-butylaluminum
model compounds
hydroxides
hydrolysis
gallium
complexes
galloxane
alkylalumoxanes
 
Description This Account summarizes the recent developments in the hydrolysis chemistry of Group 13 trialkyl and triaryl compounds. Emphasis has been placed on the results obtained by us on (a) H-1 NMR investigations of controlled hydrolyses of AlMes(3) and GaMes(3), (b) low-temperature isolation of water adducts of triaryl compounds of aluminum and gallium, (c) synthesis and structural characterization of new polyhedral alumoxanes and galloxanes, and (d) the search for an easy way to synthesize well-defined crystalline methylalumoxanes by deprotonation of the hydroxides with alkyllithium reagents. The systematic studies on the hydrolysis of tBu(3)-Al carried out by Barren et al. are also discussed in order to elucidate the roles of (i) reaction temperature, (ii) solvent medium, and (iii) source of water molecules, in building up hitherto unknown alumoxane clusters. The role of water impurity in organometallic reactions involving a Group 13 alkyl and other ligands (such as silanetriols and phosphorus acids) to build molecular clusters has also been discussed.
 
Publisher AMER CHEMICAL SOC
 
Date 2011-10-14T12:17:19Z
2011-12-15T09:16:21Z
2011-10-14T12:17:19Z
2011-12-15T09:16:21Z
2001
 
Type Review
 
Identifier ACCOUNTS OF CHEMICAL RESEARCH,34(3)201-211
0001-4842
http://dx.doi.org/10.1021/ar0001158
http://dspace.library.iitb.ac.in/xmlui/handle/10054/13920
http://hdl.handle.net/100/3124
 
Language en