金属イオンがアルキル鎖で覆われた希土類金属錯体の合成とその性質

概要

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A novel lanthanide complex (1) shielded by alkyl chains around metal ion has been prepared from terbium (Tb^<3+>) and 3,4,5-tris(p-dodecyloxy) benzoate (2). The luminescence and thermal properties of the complex have been studied by fluorescence spectroscopy, differential scanning calorimetry and polarizing optical microscopy. When 2 molecules in 1 were excited at 260 nm, the characteristic fluorescence of Tb^<3+> was remarkably enhanced compared to that of the excitation of Tb^<3+> at 376 nm, suggesting occurrence of efficient energy transfer from 2 molecules to Tb^<3+> ion. The complex melts to a mesophase at 211℃. Thus the complex has both luminescence and thermotropic liquid crystalline propaerties.
長野工業高等専門学校の論文
2004-06-30