Hierarchical supramolecular co-assembly formation employing multi-component light-harvesting charge transfer interactions giving rise to long-wavelength emitting luminescent microspheres.

Autor:	Gorai T; School of Chemistry and Trinity Biomedical Sciences Institute (TBSI), Trinity College Dublin, The University of Dublin Dublin 2 Ireland gorait@tcd.ie gunnlaut@tcd.ie., Lovitt JI; School of Chemistry and Trinity Biomedical Sciences Institute (TBSI), Trinity College Dublin, The University of Dublin Dublin 2 Ireland gorait@tcd.ie gunnlaut@tcd.ie.; Synthesis and Solid State Pharmaceutical Centre (SSPC) Ireland., Umadevi D; Department of Chemistry, Indian Institute of Technology Palakkad (IITPKD) Palakkad-678557 Kerala India., McManus G; School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute (TBSI), Trinity College Dublin, The University of Dublin Dublin 2 Ireland., Gunnlaugsson T; School of Chemistry and Trinity Biomedical Sciences Institute (TBSI), Trinity College Dublin, The University of Dublin Dublin 2 Ireland gorait@tcd.ie gunnlaut@tcd.ie.; Advanced Materials and BioEngineering Research (AMBER) Centre, Trinity College Dublin, The University of Dublin Dublin 2 Ireland.; Synthesis and Solid State Pharmaceutical Centre (SSPC) Ireland.
Jazyk:	angličtina
Zdroj:	Chemical science [Chem Sci] 2022 May 31; Vol. 13 (26), pp. 7805-7813. Date of Electronic Publication: 2022 May 31 (Print Publication: 2022).
DOI:	10.1039/d2sc02097a
Abstrakt:	Charge transfer (CT) interaction induced formation of a hierarchical supramolecular assembly has attracted attention due to its wide diversity of structural and functional characteristics. In the present work, we report the generation of green luminescent microspheres from the charge transfer interaction induced co-assembly of a bis-naphthyl dipicolinic amide (DPA) derivative with tetracyanobenzene (TCNB) for the first time. The properties of these self-assemblies were studied both in solution and the solid-state using spectroscopic and a variety of microscopy techniques. The X-ray crystal structure analysis showed a mixed stack arrangement of DPA and TCNB. The molecular orbital and energy level calculations confirm the charge transfer complex formation between DPA and TCNB. Furthermore, energy transfer was observed from the green luminescent CT complex to a red-emitting dye, pyronin Y, in the microsphere matrix, leading to the formation of a light-harvesting tri-component self-assembly. Competing Interests: There are no conflicts to declare. (This journal is © The Royal Society of Chemistry.)
Databáze:	MEDLINE
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