Abstract
Post-synthetic modification of mechanically interlocked molecules (MIMs) is an attractive avenue to add complexity to already intricate systems. This remains an important, challenging topic that is under-developed. In this paper, we report the synthesis and characterization of a [2]rotaxane molecule featuring a ring appended to an emissive cyclometalated PtII unit. Modulation of the oxidation state at the metal center can transform the interlocked molecule into a new PtIV [2]rotaxane or a PtIII [3]rotaxane held together by an intermetallic Pt-Pt bond - a first of its kind. These molecules display distinct structural and photophysical properties, as well as shuttling dynamics. This approach for post-synthetic modification could be used to construct more complex MIMs and inorganic supramolecular assemblies with redox properties.
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More From: Angewandte Chemie (International ed. in English)
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