| 초록 |
Very recently, we have developed novel inert, stable lanthanide(III)-cored supramolecular complexes based on metalloporphyrins for optical amplification. Lanthanide ions were encapsulated by the supramolecular ligands, such as free base porphyrin, Zn- and Pt-metalloporphyrins. The supramolecular ligands have been designed and synthesized to provide enough coordination sites for the formation of inert, stable lanthanide(III)-chelated complexes with 6- and 9-coordinate numbers. The influence of coordinate number in lanthanide(III)-chelated complexes on the luminescence property were investigated. For getting a higher luminescence intensity, also, the energy levels of the supramolecular ligands were tailored to maintain the effective energy transfer process from supramolecular ligands to lanthanide ions by using porphyrin derivatives and porphyrin containing novel antenna systems with naphthalene and anthracene moieties. Also, the phosphorescence of free base porphyrin, Zn- and Pt-metalloporphyrins, to our knowledge for the first time, was detected in powder and solution. In this presentation, molecular design, synthesis and photophysical properties of novel lanthanide(III)-cored supramolecular complexes based on porphyrin derivatives containing naphthalene and anthracene antenna systems will be discussed. |
