Synthesis And Application Of 4-Phosphinyl-benzoic Acid And 4-Phosphinyl-2-methyl- Benzoic Acid

It is the great efficiency of photosynthesis that many scientists all over the world have taken great interest in。They want to prepare light harvesting complexes according the principle of photosynthesis。Scholars have studied that hydroxyl of a-ZrP can be replaced by carboxyl or phenyl and the direction of its are still apeak to the layer of zirconium . Hydroxyl of a-ZrP can be replaced by benzoic acid series, This kind of benzoic acid- zirconium phosphate complexe which is wellsymmetrical。Cooperate with Professor Shishikao of hebei normal university ,We repared Zr phosphate series layered compounds which can do as a framework ;Applying benzoic acid series which absorb ultraviolet or visible light efficiently,as donor and lanthanide series molecules or ions as acceptor ,efficient energy transfer process happened as they bond to the framework together。This kind of complexes which have a stable chemical and physical property。Applying Zr phosphonate as framework ,the supramolecular assemblies of benzoic acid-lanthanide(Tb)were designed and constructed by Professor Shishikao of hebei normal university。Not only the stability to heat is improved but also the emission intensity of Tb3+ in the assemblies is enhanced。this may be a new approach to prepare lumineseent materials。To prepare new typelumineseent materials we design ,synthesized and charactered two very important monomer: 4-Phosphinyl-benzoic acid and 4-Phosphinyl-2-methyl- benzoic acid The two compounds have been characterized by UV;IR; HNMR; and Ms.。...