Molecular engineering of logic gate types by module rearrangement in ‘Pourbaix Sensors’: the effect of excited-state electric fields
| hal.structure.identifier | Department of Chemistry [Msida] | |
| dc.contributor.author | SPITERI, Jake | |
| hal.structure.identifier | Institut des Sciences Moléculaires [ISM] | |
| dc.contributor.author | DENISOV, Sergey | |
| hal.structure.identifier | Laboratoire Ondes et Matière d'Aquitaine [LOMA] | |
| dc.contributor.author | JONUSAUSKAS, Gediminas | |
| hal.structure.identifier | AGH University of Science and Technology [Krakow, PL] [AGH UST] | |
| dc.contributor.author | KLEJNA, Sylwia | |
| hal.structure.identifier | AGH University of Science and Technology [Krakow, PL] [AGH UST] | |
| dc.contributor.author | SZACIŁOWSKI, Konrad | |
| hal.structure.identifier | Institut des Sciences Moléculaires [ISM] | |
| dc.contributor.author | MCCLENAGHAN, Nathan | |
| hal.structure.identifier | Department of Chemistry [Msida] | |
| dc.contributor.author | MAGRI, David | |
| dc.date.created | 2018-02-26 | |
| dc.date.issued | 2018 | |
| dc.identifier.issn | 1477-0520 | |
| dc.description.abstractEn | Two types of fluorescent logic gates are accessed from two different arrangements of the same modular components, one as an AND logic gate (1) and the other as a PASS 0 logic gate (2). The logic gates were designed with an 'electron-donor-spacer 1-fluorophore-spacer 2-receptor' format and demonstrated in 1 : 1 (v/v) methanol/water. The molecules consist of ferrocene as the electron donor, 4-aminonaphthali-mide as the fluorophore and a tertiary alkylamine as the receptor. In the presence of high H + and Fe 3+ levels, regioisomers 1a and 1b switch 'on' as AND logic gates with fluorescence enhancement ratios of 16-fold and 10-fold, respectively, while regioisomers 2a and 2b are functionally dormant, exhibiting no fluorescence switching. The PASS 0 logic of 2a and 2b results from the transfer of an electron from the excited state fluorophore to the ferrocenium unit under oxidising conditions as predicted by DFT calculations. Time-resolved fluorescence spectroscopy provided lifetimes of 8.3 ns and 8.1 ns for 1a and 1b, respectively. The transient signal recovery rate of 1b is ∼10 ps while that of 2b is considerably longer on the nanosecond timescale. The divergent logic attributes of 1 and 2 highlight the importance of field effects and opens up a new approach for regulating logic-based molecules. | |
| dc.language.iso | en | |
| dc.publisher | Royal Society of Chemistry | |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc-sa/ | |
| dc.title.en | Molecular engineering of logic gate types by module rearrangement in ‘Pourbaix Sensors’: the effect of excited-state electric fields | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1039/c8ob00485d | |
| dc.subject.hal | Physique [physics]/Physique [physics]/Chimie-Physique [physics.chem-ph] | |
| dc.description.sponsorshipEurope | Reservoir Computing with Real-time Data for future IT | |
| bordeaux.journal | Organic & Biomolecular Chemistry | |
| bordeaux.page | 6195-6201 | |
| bordeaux.volume | 16 | |
| bordeaux.issue | 34 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-01955955 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-01955955v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Organic%20&%20Biomolecular%20Chemistry&rft.date=2018&rft.volume=16&rft.issue=34&rft.spage=6195-6201&rft.epage=6195-6201&rft.eissn=1477-0520&rft.issn=1477-0520&rft.au=SPITERI,%20Jake&DENISOV,%20Sergey&JONUSAUSKAS,%20Gediminas&KLEJNA,%20Sylwia&SZACI%C5%81OWSKI,%20Konrad&rft.genre=article |
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