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キラルなスチルベンジアミンから誘導した四座のシッフ塩基を配位子とするY(III), La(III), Gd(III)単核錯体の合成と発光特性

Synthesis and luminescence properties of mononuclear Y(III), La(III), Gd(III) complexes with tetradentate Schiff base ligands derived from chiral stilbenediamine

鈴木 かおり*; 槌本 昌信*; 青柳 登   ; 渡邉 雅之   ; 中島 清彦*

Suzuki, Kaori*; Tsuchimoto, Masanobu*; Aoyagi, Noboru; Watanabe, Masayuki; Nakajima, Kiyohiko*

キラルなスチルベンジアミンから誘導した四座のシッフ塩基(L)を配位子とするY(III), La(III), Gd(III)単核錯体(C$$_{2}$$H$$_{5}$$)$$_{4}$$N[Ln(L)$$_{2}$$] (Ln=Y, La, Gd)を合成した。この錯体の発光について調べたところ、光学活性体とラセミ体の結晶で発光の色が異なることがわかった。そこで本研究では、これらのY(III), La(III), Gd(III)単核錯体の結晶性粉末の発光特性について検討した。発光スペクトルは、光学活性体とラセミ体の結晶では発光波長が異なるが、それぞれの結晶を乳鉢ですりつぶした化合物は同一の発光波長を示すことが明らかになった。

Mononuclear Y(III), La(III), Gd(III) complexes ((C$$_{2}$$H$$_{5}$$)$$_{4}$$N[Ln(L)$$_{2}$$]) with tetradentate Schiff base ligands derived from chiral stilbenediamine were synthesized. The luminescence of these complexes exhibited different in luminescence color between the chiral complexes and the racemic complexes. In this presentation, luminescence properties on the crystalline powder of mononuclear Y(III), La(III), Gd(III) complexes were investigated in detail. It was found out that the different luminescence spectra of crystalline were observed in between chiral and racemic complexes, but the similar luminescence spectra were observed in the ground ones.

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