Design and Synthesis of 60掳 Dendritic Donor Ligands and Their Coordination-Driven Self-Assembly into Supramolecular Rhomboidal Metallodendrimers

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• 作者：Qing Han ; Quan-Jie Li ; Jiuming He ; Bingjie Hu ; Hongwei Tan ; Zeper Abliz ; Cui-Hong Wang ; Yihua Yu ; Hai-Bo Yang
• 刊名：Journal of Organic Chemistry
• 出版年：2011
• 出版时间：December 2, 2011
• 年：2011
• 卷：76
• 期：23
• 页码：9660-9669
• 全文大小：666K
• 年卷期：v.76,no.23(December 2, 2011)
• ISSN：1520-6904

文摘

The design and self-assembly of novel rhomboidal metallodendrimers via coordination-driven self-assembly is described. By employing newly designed 60掳 ditopic donor linkers substituted with Fr茅chet-type dendrons and appropriate 120掳 rigid di-Pt(II) acceptor subunits, a variety of [G-1]鈥揫G-3] rhomboidal metallodendrimers with well-defined shape and size were prepared under mild conditions in high yields. The supramolecular metallodendrimers were characterized with multinuclear NMR (¹H and ³¹P), mass spectrometry (CSI-TOF-MS), and elemental analysis. Isotopically resolved mass spectrometry data support the existence of the metallodendrimers with rhomboidal cavities, and NMR data were consistent with the formation of all ensembles. The shape and size of all rhomboidal metallodendrimers were investigated with the PM6 semiempirical molecular orbital method.