Acid/Base Switching of the Tautomerism and Conformation of a Dioxoporphyrin for Integrated Binary Subtraction

作者：Ding, Yubin; Li, Xin; Hill, Jonathan P.; Ariga, Katsuhiko; Agren, Hans; Andreasson, Joakim; Zhu, Weihong; Tian, He; Xie, Yongshu^*

来源：Chemistry - A European Journal, 2014, 20(40): 12910-12916.

DOI：10.1002/chem.201403830

• half-subtractars
• logic gates
• organic electronic
• porphyrinoids
• tautamerism

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.

• 出版日期2014-9-26
• 单位华东理工大学