Method for producing tetrakis ( fluoroaryl) borate-magnesium compound
Fluoroaryl magnesium halide is reacted with a boron compound so that a molar ratio of the fluoroaryl magnesium halide to the boron compound is not less than 3.0 and not more than 3.7, so as to produce a tetrakis (fluoroaryl) borate·magnesium compound. With this method, there occurs no hydrogen fluoride which corrodes a producing apparatus and requires troublesome waste water treatment.
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(2008/06/13)
Synthesis and mesomorphic properties of some liquid crystals with 2,3,5,6-tetrafluorophenylene unit
Nine fluorosubstituted liquid crystals have been synthesized and their mesomorphic properties have been studied by texture observation in a polarizing microscope and confirmed by DSC. They show enantiotropic smectic A and nematic phases. The effect of ter
Tang,Yang, Yong Gang,Wen
p. 17 - 24
(2007/10/03)
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