Contorted Tetrabenzocoronene Derivatives for Single Crystal Field Effect Transistors: Correlation between Packing and Mobility

A series of contorted tetrabenzo[a,d,j,m]coronenes (TBCs) substituted with four fluoro-, chloro-, or methyl groups at 2,7,12,17-positions were synthesized and characterized. Except for the one with methyl substituents, which exhibits a shifted π–π stacking, the rest all show cofacial π–π stacking wi...

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Published inChemistry of materials Vol. 24; no. 13; pp. 2566 - 2571
Main Authors Pola, Someshwar, Kuo, Chi-Hsien, Peng, Wei-Tao, Islam, Md. Minarul, Chao, Ito, Tao, Yu-Tai
Format Journal Article
LanguageEnglish
Published American Chemical Society 10.07.2012
Subjects
single crystal field-effect transistors
tetrabenzocoronenes
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Summary:A series of contorted tetrabenzo[a,d,j,m]coronenes (TBCs) substituted with four fluoro-, chloro-, or methyl groups at 2,7,12,17-positions were synthesized and characterized. Except for the one with methyl substituents, which exhibits a shifted π–π stacking, the rest all show cofacial π–π stacking with small parallel displacements. One-dimensional growth along the stacking direction was observed in the single crystals for all derivatives. A systematic comparison of the crystal packing and the calculated electronic coupling/mobility with the measured field-effect mobility for single-crystal field-effect transistors shows a good correlation.
ISSN:0897-4756
1520-5002
DOI:10.1021/cm301190c