申请人:Ong S. Beng
公开号:US20080108834A1
公开(公告)日:2008-05-08
A small molecular thiophene compound consisting of: at least one divalent linkage; and a plurality of thiophene units, each thiophene unit being represented by structure (A)
wherein each thiophene unit is bonded at either or both of the second ring position and the fifth ring position, wherein m is 0, 1, or 2, wherein each thiophene unit is the same or different from each other in terms of substituent number, substituent identity, and substituent position, wherein each R
1
is independently selected from the group consisting of: (a) a hydrocarbon group, (b) a heteroatom containing group, and (c) a halogen, wherein there is at least one thiophene unit where R
1
is present at the third ring position or the fourth ring position, or at both the third ring position and the fourth ring position, wherein for any two adjacent thiophene units as represented by structure (A1):
there is excluded the simultaneous presence of the same or different R
1
at the 3-position of one thiophene unit and at the 3′-position of the other thiophene unit, and wherein the number of the thiophene units is at least 6.
一种由以下组成的小分子噻吩化合物:至少一个二价键;和多个噻吩单元,每个噻吩单元由结构(A)表示,其中每个噻吩单元在第二环位置和/或第五环位置之一或两者处结合,其中m为0、1或2,每个噻吩单元在取代基数目、取代基身份和取代基位置方面相同或不同,其中每个R1独立地选自以下组:(a) 烃基,(b) 含杂原子基团,和(c) 卤素,其中至少有一个噻吩单元中R1存在于第三环位置或第四环位置,或同时存在于第三环位置和第四环位置,对于由结构(A1)表示的任意两个相邻的噻吩单元:不允许同时存在相同或不同的R1在一个噻吩单元的3-位置和另一个噻吩单元的3'-位置,且噻吩单元的数量至少为6。