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The sensitivity of donor - Acceptor charge transfer to molecular geometry in DAN - NDI based supramolecular flower-like self-assemblies Al Kobaisi, M, Bhosale, R, El-Khouly, M, La, D, Padghan, S, Bhosale, S, Jones, L, Antolasic, F, Fukuzumi, S and Bhosale, S 2017, 'The sensitivity of donor - Acceptor charge transfer to molecular geometry in DAN - NDI based supramolecular flower-like self-assemblies', Scientific Reports, vol. 7, no. 1, pp. 1-11. Document type: Journal Article Collection: Journal Articles Title The sensitivity of donor - Acceptor charge transfer to molecular geometry in DAN - NDI based supramolecular flower-like self-assemblies Author(s) Al Kobaisi, M Bhosale, R El-Khouly, M La, D Padghan, S Bhosale, S Jones, L Antolasic, F Fukuzumi, S Bhosale, S Year 2017 Journal name Scientific Reports Volume number 7 Issue number 1 Start page 1 End page 11 Total pages 11 Publisher Nature Abstract A charge-transfer (CT) complex self-assembled from an electron acceptor (NDI-EA: naphthalene diimide with appended diamine) and an electron donor (DAN: phosphonic acid-appended dialkoxynapthalene) in aqueous medium. The aromatic core of the NDI and the structure of DAN1 were designed to optimize the dispersive interactions (π-π and van der Waals interactions) in the DAN1-NDI-EA self-assembly, while the amino groups of NDI also interact with the phosphonic acid of DAN1 via electrostatic forces. This arrangement prevented crystallization and favored the directional growth of 3D flower nanostructures. This molecular geometry that is necessary for charge transfer to occur was further evidenced by using a mismatching DAN2 structure. The flower-shaped assembly was visualized by scanning electron and transmission electron microscopy. The formation of the CT complex was determined by UV-vis and cyclic voltammetry and the photoinduced electron transfer to produce the radical ion pair was examined by femtosecond laser transient absorption spectroscopic measurements. Subject Composite and Hybrid Materials Physical Chemistry of Materials Biomaterials Keyword(s) photoinduced electron-transfer naphthalene diimide supra-amphiphiles chromophores nanostructures environments nanofibers nanosheets complexes stacking DOI - identifier 10.1038/s41598-017-15599-9 Copyright notice © The Author(s) 2017 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License ISSN 2045-2322 Related Links Link Description https://dx.doi.org/10.1038/s41598-017-15599-9 Link to Published Version   Versions Version Filter Type Tue, 26 Mar 2019, 13:28:29 EST Filtered Full Citation counts:   Cited 0 times in Thomson Reuters Web of Science Article Cited 0 times in Scopus Article Altmetric details: Access Statistics: 9 Abstract Views  -  Detailed Statistics Created: Tue, 26 Mar 2019, 09:36:00 EST by Catalyst Administrator