标题：Synthesis of siloxane-based PAMAM dendrimers and luminescent properties of their lanthanide complexes
作者：Niu, Y.;Lu, H.;Wang, D.;Yue, Y.;Feng, S.
作者机构：[Niu, Y] Key Laboratory of Special Functional Aggregated Materials, Shandong University, Ministry of Education, Jinan 250100, China, School of Chemist 更多
通讯作者地址：[Feng, SY]Shandong Univ, Sch Chem & Chem Engn, Minist Educ, Key Lab Special Funct Aggregated Mat, Jinan 250100, Peoples R China.
来源：Journal of Organometallic Chemistry
关键词：Lanthanide complexes;Luminescent properties;PAMAM dendrimers;Siloxane;Synthesis
摘要：The 0.5-2 generations of siloxane-based PAMAM dendrimers with 1, 3-bis(3-aminopropyl) tetramethyldisiloxane (G0) as core unit were synthesized by two different methods. Their structures were characterized by FTIR, ~1H NMR, ~(13)C NMR, LC/MS, TGA, and DSC. Results show that method two is more suitable as its synthetic procedure is simple and it provides higher yield than method one. DSC analysis indicates that the introduction of the siloxane linkage into the interior of the dendrimers has significant effect on the flexibility of the dendrimer structures. Lanthanide complexes of the newly designed siloxane-based PAMAM dendrimers were obtained by complexing with Eu(III) and Tb(III), respectively. The luminescent properties of the complexes in the solution were investigated. Narrow-width red and green emissions were observed from the complexes of G0.5, G1.5, and G2.0, indicating intramolecular energy transfer process takes place between ligands and lanthanide ions.