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理学院“科学沙龙”系列学术讨论会




题目:Self-assembly of Manganese Porphyrins: A Novel Coordination Polymer with DNA Helical Tendency and A Layered Supramolecular Architecture

主讲人:阎雁教授

内容简介:A layered porphyrin supramolecular architecture of MnTHPPCl (1)and a novel porphyrin coordination polymer of MnTHPPH2O (2) with right-handed helical tendency of DNA were firstly self-assembled by meso-tetrakis(4-hydroxyphenyl) porphyrinato manganese (III) chloride [MnTHPPCl] in different solutions. 2 represent the first example of helical 1-D coordinated helices of (metallo)porphyrins assembled via the axial coordination bonding. This successful assembling of 2 proves the correctness of the quantum calculation results about the N-protonated porphyrins to aggregate with DNA helix selectivity. Their structures were also characterized by AFM images to demonstrate the identity between microstructure and external shape.

时间:2007年11月16日下午2:30

地点:理学院报告厅(理-352)

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