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    STUDIA CHEMIA - Issue no. 1 / 2004  
         
  Article:   APPLICATIONS OF CALIX[4]PYRROLES.

Authors:  SILVIA LOZOVANU, LUMINIŢA SILAGHI-DUMITRESCU, IOAN ALEXANDRU SILBERG. 		 
       
         
  Abstract:  The self-assembly of complementary fragments occurs throughout nature and plays an essential role in the construction of biological "superstructures" such as nucleic acids, multicomponent enzymes, cell membranes, etc. , . The structural information required for facile self-assembly is preprogrammed in the topography and functionality of the building block surfaces , . Calix[4]pyrroles are a class of old but yet new compounds that show interesting anion and neutral substrate binding properties . The anion binding properties of meso-octamethylcalix[4]pyrrole 1, was first mentioned by Jonathan L. Sessler and coworkers , and subsequently developed by his group . The discovery that calix[4]pyrroles such as 1 are effective anion binding agents in solution has led to the synthesis of a variety of new calixpyrrole macrocycles that have been used for anion binding, sensing and for new anion separation technologies. The general route for the synthesis of calix[4]pyrroles is the condensation of pyrrole with ketones in the acid catalysis5, This review is dedicated to some applications of calix[4]pyrroles as anion and neutral binders, chromatic, fluorescent and electrochemical sensors.  
         
     
         
         
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