eprintid: 10076663 rev_number: 16 eprint_status: archive userid: 608 dir: disk0/10/07/66/63 datestamp: 2019-06-27 10:44:27 lastmod: 2021-10-07 22:17:20 status_changed: 2019-06-27 10:44:27 type: article metadata_visibility: show creators_name: Yang, L creators_name: Langer, P creators_name: Davies, ES creators_name: Baldoni, M creators_name: Wickham, K creators_name: Besley, NA creators_name: Besley, E creators_name: Champness, NR title: Synthesis and characterisation of rylene diimide dimers using molecular handcuffs ispublished: pub divisions: UCL divisions: B04 divisions: C05 note: This article is licensed under a Creative Commons Attribution 3.0 Unported Licence https://creativecommons.org/licenses/by/3.0/ abstract: A strategy for positioning, and loosely connecting, molecules in close proximity using mechanically interlocked handcuffs is described. The strategy is demonstrated using rylene diimides, creating dimeric structures in which two components are linked through pillar[5]arene/imidazolium rotaxanes. Investigation of the resulting molecules demonstrates intriguing and new properties that arise from placing these redox active dye molecules together, allowing interactions, whilst allowing the molecules to separate as required. In particular we observe excimer emission from a perylene diimide dimer handcuff and the formation of an unusual radical anion π-dimer upon double reduction of the same molecule. The latter exhibits a unique visible absorption profile for a PDI-based molecule. We demonstrate the flexibility of our approach by making an unprecedented mixed perylene diimide/naphthalene diimide dimer which also reveals interactions between the two components. Our synthetic strategy facilitates the creation of unusual dimeric structures and allows the investigation of intermolecular interactions and the effects they have on electronic and magnetic properties. date: 2019-04-07 date_type: published publisher: ROYAL SOC CHEMISTRY official_url: https://doi.org/10.1039/c9sc00167k oa_status: green full_text_type: pub language: eng primo: open primo_central: open_green verified: verified_manual elements_id: 1666182 doi: 10.1039/c9sc00167k lyricists_name: Yang, Lixu lyricists_id: LYANB88 actors_name: Cuccu, Clara actors_id: CCCUC40 actors_role: owner full_text_status: public publication: Chemical Science volume: 10 number: 13 pagerange: 3723-3732 pages: 10 issn: 2041-6539 citation: Yang, L; Langer, P; Davies, ES; Baldoni, M; Wickham, K; Besley, NA; Besley, E; Yang, L; Langer, P; Davies, ES; Baldoni, M; Wickham, K; Besley, NA; Besley, E; Champness, NR; - view fewer <#> (2019) Synthesis and characterisation of rylene diimide dimers using molecular handcuffs. Chemical Science , 10 (13) pp. 3723-3732. 10.1039/c9sc00167k <https://doi.org/10.1039/c9sc00167k>. Green open access document_url: https://discovery.ucl.ac.uk/id/eprint/10076663/1/Baldoni_c9sc00167k.pdf