The influence of alkyl group regiochemistry and backbone fluorination on the packing and transistor performance of N-cyanoimine functionalised indacenodithiophenes

Abstract

The synthesis of two novel n-type molecular organic semiconductors based on a fluorinated indacenodithiophene core in combination with an electron withdrawing N-cyanoimine group is reported, and the influence of the...

Push–Pull Effect on the Gas-Phase Basicity of Nitriles: Transmission of the Resonance Effects by Methylenecyclopropene and Cyclopropenimine π-Systems Substituted by Two Identical Strong Electron Donors

“…It is present in many systems, which have been largely studied experimentally and theoretically, in particular in the last ten years, as platforms for developing superbases and organocatalysts [18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34]. The imino bond carrying a nitrile group on the nitrogen, >C=N−CN, is present in molecules of biological interest, in particular the neonicotinoids [35][36][37], and in materials developed for their electronic applications [38][39][40]. These articles, as well as others dealing with similar functionalities, refer to the corresponding families as N-cyano-imines or cyano-imines.…”

High-performance five-ring-fused organic semiconductors for field-effect transistors

“…36). 133,[413][414][415][416][417][418][419][420][421][422][423][424][425] A benzene ring is located at the center position, and two cyclopenta-1,3-dienes can be combined at both ends of benzene. Then two thiophene rings were fused at both ends.…”

Tailoring the molecular weight of polymer additives for organic semiconductors

“…29,30 The enhanced π–π stacking in TIPS pentacene is attributed to higher charge transport. 31 These research endeavors have opened up vast opportunities for organic semiconductors to be applied in high performance organic electronic devices such as organic thin film transistors, 32–35 organic gas sensors, 36–38 photovoltaic devices 39–41 and logic circuits. 42–44 In this section, we will review the important studies that investigated the solution processability and charge carrier mobility of organic semiconductor based thin film transistors, as well as their application in fabricating organic gas sensors.…”