Acid/Base Switching of the Tautomerism and Conformation of a Dioxoporphyrin for Integrated Binary Subtraction
2014 (English)In: Chemistry - A European Journal, ISSN 0947-6539, E-ISSN 1521-3765, Vol. 20, no 40, 12910-12916 p.Article in journal (Refereed) Published
Compared with most of the reported logic devices based on the supramolecular approach, systems based on individual molecules can avoid challenging construction requirements. Herein, a novel dioxoporphyrin DPH22 was synthesized and two of its tautomers were characterized by single-crystal X-ray diffraction studies. Compound DPH22 exhibits multichannel controllable stepwise tautomerization, protonation, and deprotonation processes through interactions with H and F- ions. By using the addition of H+ and F- ions as inputs and UVNis absorption values at.1=412, 510, 562, and 603 nm as outputs, the controlled tautomerism of DPH22 has been successfully used for the construction of an integrated molecular level half-subtractor and comparator. In addition, this acid/base-switched tautomerism is reversible, thus endowing the system with ease of reset and recycling; consequently, there is no need to modulate complicated intermolecular interactions and electron-/chargetransfer processes.
Place, publisher, year, edition, pages
2014. Vol. 20, no 40, 12910-12916 p.
half-subtractars, logic gates, organic electronic, porphyrinoids, tautamerism
IdentifiersURN: urn:nbn:se:kth:diva-155146DOI: 10.1002/chem.201403830ISI: 000342627300031ScopusID: 2-s2.0-84920793234OAI: oai:DiVA.org:kth-155146DiVA: diva2:760980
QC 201411052014-11-052014-10-312014-11-05Bibliographically approved