Helical 𝐻-type aggregation of trimeric �?-phenylene vinylene with chiral ester groups

Bulletin of materials science

Peng Wang¹  Ying Li¹  Haiquan Zhang¹ 

[1] State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China$$State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, ChinaState Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China$$

关键词: Light scattering;    𝐻-type aggregation;    cotton effects;    exciton coupling effect.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

Self-assembly properties of the trimeric ð‘�?-phenylene vinylene derivative containing symmetrical endgroups of ð‘�??-(+)-2-methylbutyric acid ester (ChTPV) in H₂O/THF mixed solvents were studied by absorption, photoluminescence and circular dichroism (CD) spectra. The results indicate that ChTPV exhibits helical 𝐻-type nano-aggregates in 80% H₂O/THFmixed solvents, and the negative exciton coupling suggests that the chromophoric dipoles are oriented in a counter-clockwise direction.

【 授权许可】

Unknown