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Synthesis and structure of a novel lithium gallosiloxane containing a Ga4Si4O8 macrocycle analogous to the S8R building unit of zeolites

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Title Synthesis and structure of a novel lithium gallosiloxane containing a Ga4Si4O8 macrocycle analogous to the S8R building unit of zeolites
 
Creator MURUGAVEL, R
WALAWALKAR, MG
PRABUSANKAR, G
DAVIS, P
 
Subject solid-state
crystal-structure
model-compound
f-elements
framework
gallium
aluminophosphonate
gallosilicate
catalysts
ligands
 
Description 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.
 
Publisher AMER CHEMICAL SOC
 
Date 2011-07-15T00:05:10Z
2011-12-26T12:49:08Z
2011-12-27T05:34:52Z
2011-07-15T00:05:10Z
2011-12-26T12:49:08Z
2011-12-27T05:34:52Z
2001
 
Type Article
 
Identifier ORGANOMETALLICS, 20(12), 2639-2642
0276-7333
http://dx.doi.org/10.1021/om0100636
http://dspace.library.iitb.ac.in/xmlui/handle/10054/4100
http://hdl.handle.net/10054/4100
 
Language en