Abstract
We synthesized a linear porphyrin trimer (TPP-DEP-TPP) that has a meso-diethynyl Zn-porphyrin unit (DEP) and two tetraphenyl Zn-porphyrin terminals (TPP). The trimer formed stable 1:3 and 2:3 complexes in chloroform with 4-phenylpyridine and 4,4'-biphyridine, respectively. The complexation of the trimer was investigated by means of UV-vis titration. The detailed synthetic procedure and complexation of the trimer with several ligands will be presented.