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Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/10054/4100

Title: Synthesis and structure of a novel lithium gallosiloxane containing a Ga4Si4O8 macrocycle analogous to the S8R building unit of zeolites
Authors: MURUGAVEL, R
WALAWALKAR, MG
PRABUSANKAR, G
DAVIS, P
Keywords: solid-state
crystal-structure
model-compound
f-elements
framework
gallium
aluminophosphonate
gallosilicate
catalysts
ligands
Issue Date: 2001
Publisher: AMER CHEMICAL SOC
Citation: ORGANOMETALLICS, 20(12), 2639-2642
Abstract: The reaction of LiGaMe4 with diphenysilanediol in THF at 50 degreesC leads to the formation of the title gallosiloxane Li-2(Li(THF)(2))(2)[Ph2SiO2GaMe2](2)[Ph2SiO2GaMe(OH)](2). 2THF (1), which is made up of a central tetraanionic G alpha 4Si4O8 16-membered macrocyclic core. The cavity that is created by this tetraanionic gallosiloxane ring and also the presence of two Ga-OH groups pointing toward the center of the macrocyclic ring facilitate the entrapment of two lithium cations in the core through two Li-O(siloxide) and true Li-OH(Ga) linkages. The other two lithium ions are located at the periphery and are bound to the gallosiloxane ring through the Li-O(Si) linkages. Compound 1 represents the first organic-soluble molecular model compound for the S8R secondary building unit of several gallo- and aluminosilicates.
URI: http://dx.doi.org/10.1021/om0100636
http://dspace.library.iitb.ac.in/xmlui/handle/10054/4100
http://hdl.handle.net/10054/4100
ISSN: 0276-7333
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