2,6-双(三甲基锡)-4,8-双(2-乙基己氧基)苯并[1,2-b∶4,5-b′]二噻吩的合成与多核NMR研究

Synthesis and Multinuclear NMR Study on 2,6-Bis(trimethyltin)4,8-bis(2-ethylhexyloxy)benzo[1,2-b:4,5-b′]dithiophene

以苯并[1,2-b∶4,5-b′]二噻吩-4,8-二酮为原料合成了一种聚合物太阳能电池材料的单体2,6-双(三甲基锡)-4,8-双(2-乙基己氧基)苯并[1,2-b∶4,5-b′]二噻吩.通过多核1D和2DNMR技术(包括1D1 H、13 C、119Sn、117Sn NMR、DEPT、选择性1DTOCSY及2D1 H-1 HCOSY、gHSQC、gHMBC)表征了目标分子结构,完成了1 H、13 C、119Sn与117Sn NMR化学位移归属,并探讨了该化合物的NMR谱线特征.

2,6-Bis （trimethyltin） 4,8-bis （2-ethylhexyloxy） benzo[ 1,2-b.- 4, 5 b dithio- phene, the monomer of a polymer solar cells material, was synthesized from 4,8 di- hydrobenzo]-l, 2-b ： 4,5-b/]dithiophen-4,8-dione. The structure of the compound was de- termined by muhinuclear NMR spectroscopy, including H, C,19Sn, 7Sn NMR, DEPT, selective 1D TOCSY and 2D NMR techniques including 1H-1H COSY, gHSQC and gHMBC. The 1a, 13C, 119Sn, ll7Sn NMR chemical shifts were assigned and the spectral features of the compound were discussed.