title: Hexathiapentacene: structure, molecular packing, and thin-film transistors.
abstract: In this communication we report the electrical characteristics of hexathiapentacene (HTP) and emphasize the unusual chemical structure and molecular packing. We report field-effect mobilities as high as 0.04 cm2 V-1 s-1 and current on/off ratios of >105. With crystallographic evidence of unusually long S-S bonds compared to normal S-S bonds, we have suggested a unique resonance structure similar to trithiapentalene, which well explains the bonding characteristics of HTP. This work appears to be the first to determine its molecular structure/packing mode and to study its application in organic transistors.
authors.affiliation: Department of Chemistry and Biochemistry, University of California - Los Angeles, Los Angeles, California, USA.
authors.forename: Alejandro L
authors.initials: AL
authors.lastname: Briseno
authors.forename: Qian
authors.initials: Q
authors.lastname: Miao
authors.forename: Mang-Mang
authors.initials: MM
authors.lastname: Ling
authors.forename: Colin
authors.initials: C
authors.lastname: Reese
authors.forename: Hong
authors.initials: H
authors.lastname: Meng
authors.forename: Zhenan
authors.initials: Z
authors.lastname: Bao
authors.forename: Fred
authors.initials: F
authors.lastname: Wudl