Synthesis and Fluorescence Properties of Divalent Europium -Poly(Methacrylate Containing [2.2.2] Cryptand) Complexes
作者:Nobuyuki Higashiyama、Kazuki Takemura、Ryo Iwamura、Keiichi Kimura、Gin-ya Adachi
DOI:10.1246/cl.1993.1555
日期:1993.9
and polymerized singly or copolymerized with methyl methacrylate (MMA). Complexes of these cryptand-attaching polymers with divalent europium ions exhibited blue luminescence located at ca. 450 nm. Encryptation of Eu2+ resulted in a large shift to lower wave number up to ca. 30–60 cm−1, in the infrared absorptions due to cryptand’s C-O-C stretching vibrations. The photophysical properties confirmed 1
甲基丙烯酰氧基甲基-4,7,13,16,21,24-hexaoxa-1,10-diazabicyclo[8.8.8] hexacosane (MA[2.2.2]) 已合成并单独聚合或与甲基丙烯酸甲酯 (MMA) 共聚。这些与二价铕离子结合的穴状和附着聚合物的复合物在大约 10 处显示蓝色发光。450 纳米。Eu2+ 的加密导致向低波数的大转变,直至大约。30–60 cm-1,在由于穴状体的 COC 伸缩振动引起的红外吸收中。光物理性质证实了 Eu2+ 穴状化合物的 1:1 化学计量。