Acid-Base Switching of Tautomerism and Conformation of a Dioxoporphyrin for Integrated Binary Subtraction
Artikel i vetenskaplig tidskrift, 2014

Compared with most of the reported logic devices based on the supramolecular approach, systems based on individual molecules can avoid challenging construction requirements. In this work, a novel dioxoporphyrin DPH22 was synthesized, and two of its tautomers were characterized by single crystal X-ray diffraction analyses. DPH22 exhibits multichannel controllable stepwise tautomerization, protonation and deprotonation processes by its interactions with H+ and F-. Using the addition of H+ and F- as the inputs and UV-vis absorption values at 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. Besides, this acid and base switched tautomerism turns out to be reversible, endowing the system with ease of reset and recycling, and there is no need to modulate complicated intermolecular interactions and electron/charge transfer processes.

logic gates




organic electronic


Y. Ding

East China University of Science and Technology

X. Li

Kungliga Tekniska Högskolan (KTH)

J. P. Hill

National Institute for Materials Science (NIMS)

K. Ariga

National Institute for Materials Science (NIMS)

H Ågren

Kungliga Tekniska Högskolan (KTH)

Joakim Andreasson

Chalmers, Kemi- och bioteknik, Fysikalisk kemi

W-H Zhu

East China University of Science and Technology

H Tian

East China University of Science and Technology

Y Xie

East China University of Science and Technology

Chemistry - A European Journal

0947-6539 (ISSN) 1521-3765 (eISSN)

Vol. 20 40 12910-12916


Fysikalisk kemi



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