一系列氧和硫桥连的联蒽 V 形 π 电子核被轻松合成。我们阐明了它们在单晶中的基本特性和聚合结构,并在单晶场效应晶体管中测量了它们的晶体管性能。两种 V 形分子都具有由分子间相互作用以人字形堆积方式诱导的弯曲结构。理论计算研究表明,弯曲结构的驱动力来源于强色散能。此外,弯曲构象在形成致密堆积结构中起着至关重要的作用,从而导致有吸引力的分子间重叠。电荷传输的检查表明空穴迁移率高达 2.0 cm2/Vs。最后,
conditions. Approaches to obtain stable heptacenes include introduction of suitable substituents, of heteroatoms, or both. Methods to synthesize stable linear and a nonlinear unsubstituted heptacene analogs are discussed. No changes in the UV–visible absorption spectra in solution over time for these materials indicate higher oxidative stability compared to analogous polyacenes.
Polymeric compound and polymeric electroluminescence element using the same
申请人:Fukushima Daisuke
公开号:US20100176377A1
公开(公告)日:2010-07-15
A polymer compound comprising at least one of repeating units of the following formula (1) and at least one of repeating units selected from the following formulae (2) and (3).
(Ar
1
represents an aryl group or monovalent aromatic heterocyclic group, Ar
2
represents an arylene group or divalent aromatic heterocyclic group, and Z represents a divalent aromatic group having a condensed ring structure.)
(a ring A and a ring B represent an aromatic hydrocarbon ring, at least one of the ring A and the ring B is an aromatic hydrocarbon ring having two or more benzene rings condensed, and Rw and Rx represent each independently a hydrogen atom, alkyl group or the like.)
(a ring C and a ring D represent an aromatic ring, Y represents an oxygen atom, sulfur atom or —O—C(R
K
)
2
—, and R
K
represents a hydrogen atom, alkyl group or the like.).
Oxygen- and Sulfur-Bridged Bianthracene V-Shaped Organic Semiconductors
of a dense packing structure, resulting in an attractive intermolecular overlap. An examination of the charge transport indicates that the hole mobility is up to 2.0 cm2/Vs. Finally, to understand the anisotropies of the mobility in single crystals, the transistors are evaluated when the channel direction is either parallel or orthogonal to the column direction in the herringbone packing along with
一系列氧和硫桥连的联蒽 V 形 π 电子核被轻松合成。我们阐明了它们在单晶中的基本特性和聚合结构,并在单晶场效应晶体管中测量了它们的晶体管性能。两种 V 形分子都具有由分子间相互作用以人字形堆积方式诱导的弯曲结构。理论计算研究表明,弯曲结构的驱动力来源于强色散能。此外,弯曲构象在形成致密堆积结构中起着至关重要的作用,从而导致有吸引力的分子间重叠。电荷传输的检查表明空穴迁移率高达 2.0 cm2/Vs。最后,