Cyclobuta[1,2- b :3,4- b ']ditetracene - 通过溶液和表面化学的结合合成了一种在中心部分嵌入环丁二烯单元的壬苯类似物。Au(111) 上产物的原子结构和电子特性已通过高分辨率扫描隧道显微镜/光谱确定,并得到密度泛函理论计算的证实。从理论计算得出的结构和磁性参数表明,π 共轭主要是径向烯型贡献,并混合了类环丁二烯的抗芳香性。
Design, synthesis and optical properties of small molecules based on dithieno[3,2-b:2′,3′-d]stannole and stannafluorene
作者:Chuantao Gu、Dangqiang Zhu、Meng Qiu、Liangliang Han、Shuguang Wen、Yonghai Li、Renqiang Yang
DOI:10.1039/c6nj01310d
日期:——
A series of stable Sn-containing heteroaromatic conjugated oligomers, dialkyl dithieno[3,2-b:2′,3′-d]stannole (DTSn) and stannafluorene (SnF) derivatives, were designed and synthesized.
Syntheses, Optical Properties, and Theoretical Investigation of Silafluorenes and Spirobisilafluorenes Bearing Electron-Donating Aminostyryl Arms around a Silafluorene Core
π‐Extended silafluorenes and spirobisilafluorenesbearing electron‐donating aminostyryl substituents at the 2,7‐ or 3,6‐positions were synthesized by a Horner–Wadsworth–Emmons reaction. The electronic influence of spirocyclic structure and substitution mode of the aminostyryl substituents was investigated by UV/Vis spectroscopy, which indicated the existence of a spiroconjugation effect in the 3,6‐substituted
A polymer containing an optionally substituted repeat unit of formula (I) wherein each R is the same or different and represents H or an electron withdrawing group, and each R
1
is the same or different and represents a substituent.
A series of asymmetric bistricyclic aromatic ene-based molecules were synthesized with fluoreneylidene-cyclopentadithiophene skeleton, and exhibited low bandgap characteristic with long wavelength absorption tail. The substituents effect revealed impact on their energy levels and charge transporting property, which provides a new idea for design of HTMs for perovskite solar cells.Fluorenylidene-Cyclopentadithiophene
Construction of Peptide Macrocycles via Palladium-Catalyzed Multiple S-Arylation: An Effective Strategy to Expand the Structural Diversity of Cross-Linkers