AbstractA series of π‐extended aromatic indenofluorene (IF) analogues with naphthalene and anthracene cores have been synthesized through acid‐catalyzed intramolecular cyclization. The regioselectivity of the reaction is controlled by a combination of steric and electronic factors and in some cases several possible regioisomers have resulted from the same precursor. The effects of ring connectivity on the optoelectronic properties were investigated by DFT calculations, absorption/emission spectroscopy, cyclic voltammetry, and spectroelectrochemical studies. All regioisomers exhibited a redshift of their absorption/emission bands relative to the parent IF analogues, but the magnitude of this shift and other optoelectronic properties (luminescence quantum yield, etc.) depends on the ring connectivity in a less obvious manner.
通过将萘基引入蒽的2,6-位,可以得到两种不同的蒽衍生物:2,6-二(2-萘基)蒽(2,6-di(2-Na)Ant)和2,6-di合成了(1-萘基)蒽(2,6-二(1-Na)Ant)。萘基取代位的微小变化导致分子堆积的显着差异,并进一步影响了它们的光电性能。用于2,6-di(2-Na)Ant的薄膜场效应晶体管的电荷迁移率高达2.1 cm 2 V -1 s -1,而2,6-di(1-Na)Ant的电荷迁移率没有。此外,2,6-di(2-Na)Ant薄膜光电晶体管显示出6.9×10 3 AW -1的光敏度,具有2.6×10的高光敏性6和3.4×10 16 Jones的出色探测性能,这是迄今为止报道的薄膜有机光电晶体管的最高性能之一。
Bridged Organosilane and Production Method Thereof
申请人:Shimada Toyoshi
公开号:US20090054649A1
公开(公告)日:2009-02-26
Provided is a bridged organosilane, which has a large complex organic group, and which is useful in the synthesis of a mesoporous silica and a light-emitting material, and a production method of the bridged organosilane. The bridged organosilane is expressed by the following general formula (1):
[in the formula (1), q represents an integer in a range from 2 to 4, X
1
— represents a substituent selected from the group consisting of substituents expressed by the following general formulae (2) to (5):
(in the formulae (2) to (5), R
1
represents alkyl group having 1 to 5 carbon atoms, R
2
represents an allyl group, and n represents an integer in a range from 0 to 3, and m represents an integer in a range from 0 to 6), and A
1
represents an organic group expressed by, for example, the following general formula (6):
(in the formula (6), Y
1
< represents a substituent expressed by, for example, O═C<)].
[EN] POLYCYCLIC AROMATIC COMPOUNDS AND METHODS FOR MAKING AND USING THE SAME<br/>[FR] COMPOSÉS AROMATIQUES POLYCYCLIQUES ET PROCÉDÉS DE PRÉPARATION ET D'UTILISATION ASSOCIÉS
申请人:UNIV NEVADA RENO
公开号:WO2019173243A1
公开(公告)日:2019-09-12
Disclosed herein are embodiments of polycyclic aromatic compounds and methods of making and using the same. Various different types of polycyclic ring systems are disclosed, including, but not limited to, polymeric aromatic compounds (e.g., nanographene compounds), pentacene-like compounds, chiral aromatic compounds, asymmetric arene compounds formed from naphthalene-, anthracene-, phenanthrene-, and pyrene-based starting compounds, and dimerized aromatic compounds. Also disclosed herein are novel benzannulation-based methods for making the disclosed polycyclic aromatic compounds.
Aromatic Extension at 2,6-Positions of Anthracene toward an Elegant Strategy for Organic Semiconductors with Efficient Charge Transport and Strong Solid State Emission
Organicsemiconductors integrating excellent charge transport with efficient solid emission are very challenging to be attained in the construction of light-emitting transistors and even for realization of electrically pumped organic lasers. Herein, we introduce naphthyl units at 2,6-positions of anthracene to achieve 2,6-di(2-naphthyl)anthracene (dNaAnt), which adopts J-aggregated mode in the solid