Synthesis and Photophysical Studies of Novel Water-Soluble Cu(I) Phenanthroline Mixed-Ligand Complexes Containing 1,3,5-Triaza-7-phosphaadamantane
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The new luminescent 1-D polymeric compound [Cu(dmp)(µ-PTA)]n(NO3)n•nH2O (complex 1) (dmp = 2,9-dimethyl-1,10 phenanthroline and PTA = 1,3,5 - triaza - 7 - phosphaadamantae_) containing coordination from both phosphorous and nitrogen atoms on the phosphaadamantane and the mononuclear Cu(dmp)(PTA)2NO3 (complex 2) (phosphorus coordination only from the PTA) were prepared by reacting the Cu(I)(dmp)2 with two equivalents of PTA in a homogenous solution at room temperature. Both compounds are water-soluble and air-stable, and were characterized by single crystal X-ray diffraction, 1H and 31P NMR. Complex 1 and 2 exhibit distinct photoluminescence in the solid state, DCM solution, and frozen glass, thus providing the potential for the production of water-soluble PTA-based photovoltaic devices.