1610457-57-2Relevant academic research and scientific papers
Synthesis and solid-state structures of a tetrathiafulvalene-conjugated bistetracene
Yamashita, Masataka,Kuzuhara, Daiki,Aratani, Naoki,Yamada, Hiroko
, p. 6309 - 6314 (2014)
A tetrathiafulvalene (TTF)-conjugated bistetracene was synthesized and characterized in the molecular electronic structures based on the spectroscopic measurements and the single-crystal X-ray diffraction analysis. UV/Vis absorption and electrochemical measurements of 5 revealed the considerable electronic communication between two tetracenedithiole units by through-bond and/or through-space interactions. The difference in the crystal-packing structures of 5, showing polymorphism, results in a variety of intermolecular electronic-coupling pattern. Of these, the π-stacking structure of 5 A gave a large transfer integral of HOMOs (97meV), which value is beyond hexacene and rubrene, thus, quite beneficial to achieve the high hole mobility. High hole mobility: A tetrathiafulvalene (TTF)-conjugated bistetracene was synthesized and the molecular electronic structures, as well as the packing structures were characterized. A variety of crystal packing arrangements could be originated from the soft π linkage of TTF unit. The π-stacking structure affords large intermolecular orbital coupling of HOMOs, which is quite beneficial to enhance the charge-carrier mobility (see figure).
