A Redox-active Cyclometalated Platinum Ring Enables Synthetic Post-processing of a [2]Rotaxane.

Autor: Kandel R; Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC, V6T 1Z1, Canada., Soto MA; Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC, V6T 1Z1, Canada., Medina D; Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC, V6T 1Z1, Canada., Patrick BO; Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC, V6T 1Z1, Canada., Lelj F; La.M.I. and LaSCAMM INSTM Sezione Basilicata, Dipartimento di Scienze, Università della Basilicata, Via dell'Ateneo Lucano 10, 85100, Potenza, Italy., MacLachlan MJ; Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC, V6T 1Z1, Canada.; Stewart Blusson Quantum Matter Institute, University of British Columbia, 2355 East Mall, Vancouver, BC, V6T 1Z4, Canada.; WPI Nano Life Science Institute, Kanazawa University, Kanazawa, 920-1192, Japan.
Jazyk: angličtina
Zdroj: Angewandte Chemie (International ed. in English) [Angew Chem Int Ed Engl] 2024 Oct 31, pp. e202415381. Date of Electronic Publication: 2024 Oct 31.
DOI: 10.1002/anie.202415381
Abstrakt: 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 Pt II unit. Modulation of the oxidation state at the metal center can transform the interlocked molecule into a new Pt IV [2]rotaxane or a Pt III [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.
(© 2024 The Authors. Angewandte Chemie International Edition published by Wiley-VCH GmbH.)
Databáze: MEDLINE
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