Academic Journal
Self-assembly of a functional oligo(aniline)-based amphiphile into helical conductive nanowires
| العنوان: | Self-assembly of a functional oligo(aniline)-based amphiphile into helical conductive nanowires |
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| المؤلفون: | Bell, O A, Wu, Guanglu, Haataja, Johannes S., Broemmel, Feli, Fey, Natalie, Seddon, Annela M, Harniman, Robert L, Richardson, Robert M, Ikkala, Olli, Zhang, Xi, Faul, Charl F J |
| المصدر: | Bell , O A , Wu , G , Haataja , J S , Broemmel , F , Fey , N , Seddon , A M , Harniman , R L , Richardson , R M , Ikkala , O , Zhang , X & Faul , C F J 2015 , ' Self-assembly of a functional oligo(aniline)-based amphiphile into helical conductive nanowires ' , Journal of the American Chemical Society , vol. 137 , no. 45 , pp. 14288–14294 . https://doi.org/10.1021/jacs.5b06892 |
| سنة النشر: | 2015 |
| المجموعة: | University of Bristol: Bristol Reserach |
| مصطلحات موضوعية: | Oligo(aniline)s, Conducting nanowires, Redox-active materials, functional nanomaterials |
| الوصف: | A tetra(aniline)-based cationic amphiphile, TANI-NHC(O)C 5 H 10 N(CH 3 ) 3 + Br – (TANI-PTAB) was synthesized, and its emeraldine base (EB) state was found to self-assemble into nanowires in aqueous solution. The observed self-assembly is described by an isodesmic model, as shown by temperature-dependent UV–vis investigations. Linear dichroism (LD) studies, combined with computational modeling using time-dependent density functional theory (TD-DFT), suggests that TANI-PTAB molecules are ordered in an antiparallel arrangement within nanowires, with the long axis of TANI-PTAB arranged perpendicular to the nanowire long axis. Addition of either S - or R - camphorsulfonic acid (CSA) to TANI-PTAB converted TANI to the emeraldine salt (ES), which retained the ability to form nanowires. Acid doping of TANI-PTAB had a profound effect on the nanowire morphology, as the CSA counterions’ chirality translated into helical twisting of the nanowires, as observed by circular dichroism (CD). Finally, the electrical conductivity of CSA-doped helical nanowire thin films processed from aqueous solution was 2.7 mS cm –1 . The conductivity, control over self-assembled 1D structure and water-solubility demonstrate these materials’ promise as processable and addressable functional materials for molecular electronics, redox-controlled materials and sensing. |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/pdf |
| اللغة: | English |
| Relation: | https://research-information.bris.ac.uk/en/publications/8655a752-7155-485b-b2b1-539b97910074 |
| DOI: | 10.1021/jacs.5b06892 |
| الاتاحة: | https://hdl.handle.net/1983/8655a752-7155-485b-b2b1-539b97910074 https://research-information.bris.ac.uk/en/publications/8655a752-7155-485b-b2b1-539b97910074 https://doi.org/10.1021/jacs.5b06892 https://research-information.bris.ac.uk/ws/files/51794889/Bell_etaL_JACS_JustAccepted_23102015.pdf http://www.scopus.com/inward/record.url?scp=84947713985&partnerID=8YFLogxK |
| Rights: | info:eu-repo/semantics/openAccess |
| رقم الانضمام: | edsbas.CC9A1E43 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1021/jacs.5b06892 |
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