Pure Appl. Chem., 2012, Vol. 84, No. 4, pp. 1005-1025
http://dx.doi.org/10.1351/PAC-CON-11-09-22
Published online 2012-03-23
Tetrathiafulvalene vinylogues as versatile building blocks for new organic materials
Abstract:
Although tetrathiafulvalene (TTF) and its derivatives have been extensively studied as important organic electronic materials over the past half century, tetrathiafulvalene vinyl-ogues (TTFVs) still remain a relatively underdeveloped branch in the family of TTF derivatives. Our recent work has investigated the synthesis and characterization of a class of diphenyl-substituted TTFVs carrying alkynyl functionality. The unique conformational and redox properties of such TTFV derivatives along with the versatile chemistry enabled by acetylenic groups (e.g., metal-catalyzed coupling and click reactions) have led us to a variety of functional molecular architectures ranging from oligoynes, polymers, and molecular tweezers, to macrocycles. Property studies of these new TTFV-based molecular materials point to appealing applications in molecular electronics and optoelectronics.
Keywords
chemosensors; click reaction; cross-coupling; cycloaddition; electrochromism; π-conjugation; polymers; redox; tetrathiafulvalene.