Shared posts

24 Jan 13:08

Enantioselective Synthesis of [6]Carbohelicenes

by Elisa González-Fernández, Leo D. M. Nicholls, Lukas D. Schaaf, Christophe Farès, Christian W. Lehmann and Manuel Alcarazo

TOC Graphic

Journal of the American Chemical Society
DOI: 10.1021/jacs.6b12443
12 Aug 12:19

A Concise Total Synthesis of Dictyodendrins F, H, and I Using Aryl Ynol Ethers as Key Building Blocks

by Wenhan Zhang and Joseph M. Ready

TOC Graphic

Journal of the American Chemical Society
DOI: 10.1021/jacs.6b06460
22 Apr 06:09

Uncovering the Roles of Oxygen in Cr(III) Photoredox Catalysis

by Robert F. Higgins, Steven M. Fatur, Samuel G. Shepard, Susan M. Stevenson, David J. Boston, Eric M. Ferreira, Niels H. Damrauer, Anthony K. Rappé and Matthew P. Shores

TOC Graphic

Journal of the American Chemical Society
DOI: 10.1021/jacs.6b02723
04 Jul 12:03

A Molecular Platform for Multistate Near-Infrared Electrochromism and Flip-Flop, Flip-Flap-Flop, and Ternary Memory

by Bin-Bin Cui, Jian-Hong Tang, Jiannian Yao, Yu-Wu Zhong

Abstract

A diruthenium complex with a redox-active amine bridge has been designed, synthesized, and studied by single-crystal X-ray analysis and DFT and TDDFT calculations. It shows three well-separated redox processes with exclusive near-infrared (NIR) absorbance at each redox state. The electropolymerized film of a related vinyl-functionalized complex displays multistate NIR electrochromism with low operational potential, good contrast ratio, and long retention time. Flip-flop, flip-flap-flop, and ternary memories have been realized by using the obtained film (ca. 15–20 nm thick) with three electrochemical inputs and three NIR optical outputs that each displays three levels of signal intensity.

Thumbnail image of graphical abstract

A diruthenium complex with a redox-active amine bridge shows three well-separated redox processes with exclusive near-infrared (NIR) absorbance at each redox state. The flip-flop, flip-flap-flop, and ternary memory have been realized by using the electropolymerized film (15–20 nm thick) of a related vinyl-functionalized complex with three electrochemical inputs and three NIR optical outputs.