In order to obtain an insight into the electronic states in connection with the condensation modes of thiophene and borepin rings, we examined 1-phenylthieno[2,3-d]borepin (2). While 1-phenylthieno[3,4-d]borepin is a peripherally conjugated compound, 2 was shown to be an aromatic compound which maintains characteristics in conjugation of individual rings.
Synthetic and Mechanistic Investigations on the Rearrangement of 2,3-Unsaturated 1,4-Bis(alkylidene)carbenes to Enediynes
作者:Bichismita Sahu、Rajendran Muruganantham、Irishi N. N. Namboothiri
DOI:10.1002/ejoc.200601137
日期:2007.5
The second method involves a base-mediated reaction of enedialdehydes with diethyl (1-diazo-2-oxopropyl)phosphonate (Bestmann–Ohira reagent) and subsequent transformation of the bis(diazo) compounds generated in situ to enediynes. While the transformation of bis(diazo) compounds to enediynes could take place exclusively through alkylidenecarbenes, generated in situ by geminal elimination of N2, an
Silver(I)−Ethynide Supramolecular Synthons in the Assembly of π−π Stacked Infinite Columns
作者:Liang Zhao、Xu-Dong Chen、Thomas C. W. Mak
DOI:10.1021/om701201m
日期:2008.6.9
In a series of four silver(I) complexescontaining nitrate and ethynide ligands attached to different aromaticrings, namely, [Ag2(m-C≡CC6H4C≡C)]·5AgNO3·3H2O (1), 2[(AgC≡C)2-2,3-C4H2S]·10AgNO3 (2), [(AgC≡C)-3-py]·3AgNO3 (3), and 2[(AgC≡C)-2-pyz]·6AgNO3·3H2O (4) (py = pyridine; pyz = pyrazine), intermolecular π−π interaction dominates the assembly of supramolecular synthons Ag4⊂C≡C−R−C≡C⊃Ag4 and R—C≡C⊃Ag4
Conjugated polymers and processes for preparing and modifying them
申请人:JAPAN SYNTHETIC RUBBER CO., LTD.
公开号:EP0059646A2
公开(公告)日:1982-09-08
A conjugated polymer having a recurring unit of formula (I) or (II):
(in which Ar and Ar' are the same or different and each represents a heteroaromatic ring) has good heat stability and mouldability. The polymer having a recurring unit of formula (I) may be modified by reaction with an amine or with hydrogen sulphide and both may be modified by doping with an electron-donative compound or an electron-attractive compound, to prepare organic semiconductors or organic conductors having various electrical conductivities.
具有式 (I) 或 (II) 循环单元的共轭聚合物:
(其中 Ar 和 Ar'相同或不同,各自代表一个杂芳香族环)的共轭聚合物具有良好的热稳定性和成型性。具有式(I)循环单元的聚合物可以通过与胺或硫化氢反应进行改性,也可以通过掺杂电子疏导化合物或电子吸引化合物进行改性,以制备具有不同导电率的有机半导体或有机导体。
Diyne-containing (co) polymer, processes for producing the same, and cured film
申请人:JSR Corporation
公开号:EP1099719A1
公开(公告)日:2001-05-16
A diyne-containing (co)polymer which is soluble in organic solvents, has excellent processability, and gives a cured coating film excellent in heat resistance, solvent resistance, low-dielectric characteristics, and mechanical strength; processes for producing the same; and a cured film.
The diyne-containing (co)polymer contains at least 10 mol% repeating units represented by the following formula (1) and has a weight-average molecular weight of from 500 to 1,000,000:
wherein Y represents a specific bivalent organic group; Ar represents a bivalent organic group; and n represents 0 or 1.