学 术 报 告

Nanomolecular Architectures: 

Routes to Non-dendritic Fractal Assemblies and

Self-Organization at the Molecular Level

George R. Newkome

Departments of Polymer Sciences and Chemistry

University of Akron

Akron, OH 44325-4717

newkome@uakron.edu

www.dendrimers.com

The easy creation of specifically directed building blocks has facilitated the generation of predictable macromolecules and self-assembled metallocycles, which are capable of forming higher ordered architectures.  Standard chemical transformations will be described that lead to the synthesis of the requisite monomers for the incorporation of predetermined bond angle.  The use of Ru, Os, and/or Fe connectivity, as well as the corresponding specifically ordered mixed metal constructs, will be presented.  Avenues leading to higher ordered fractal motifs will be considered along with their potential to self-assemble or self-organize into larger macromolecular constructs.  Redox potentials, spectral data, and molecular level structural characterization have been ascertained and shown to support their macromolecular composition.  The utilization of functionalized macromers has also been shown to afford novel higher order fractal and fractoid arrays.

时间：2007年10月26日 下午14：00

地点：化学所分子楼101会议室

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