The Synthesis and Characterization of Cu(I) Phenanthroline Polymer Precursor Complexes involving Substituted Phosphines
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Abstract
This paper explores the synthesis of Cu(dmp)(PTA)2BF4 (dmp = 2,9-dimethyl-1,10-phenanthroline; PTA = 1,3,5-Triaza-7-phosphaadamantane). It is the precursor molecule to Cu(dmpa)(PTA)2BF4 (dmpa = 5-acrylate-2,9-dimethyl-1,10-phenanthroline) which can be polymerized. The title compound can be prepared either through the reaction of the tetrakis(phosphaadamantane) Cu(I) species with the diimine or through reaction of the bis(diimine) Cu(I) complex with two equivalents of the phosphine. The impetus for the use of phosphaadamantane is to develop water-soluble Cu(I) phosphine systems. The acrylate compound can be polymerized to form a polymeric species with an acrylate backbone and pendant phenanthrolines. Photoexcitation of the metal-to-ligand charge transfer band produces a charge separation throughout the assembly which provides the potential for the production of a photocapacitive supramolecular assembly. The compounds are characterized by NMR, UV-Vis absorption, and photoluminescence.