The odd–even effect of alkyl chain in organic room temperature phosphorescence luminogens and the corresponding in vivo imaging. (15th May 2019)

• Record Type: Journal Article
• Authors: Yang, Jie; Gao, Heqi; Wang, Yunsheng; Yu, Yun; Gong, Yanbin; Fang, Manman; Ding, Dan; Hu, Wenping; Tang, Ben Zhong; Li, Zhen
• Is Part Of: Materials chemistry frontiers. Volume 3:Number 7(2019)
• Page Start: 1391
• Page End: 1397
• Publication Date: 2019-05-15
• Subjects: Materials science -- Periodicals; Chemistry -- Periodicals; 540
• DOI: 10.1039/c9qm00108e
• Languages: English
• ISSNs: 2052-1529

Abstract

Abstract : Six alkyl substituted phenothiazine 5, 5-dioxide derivatives, containing groups from methyl to hexyl groups, were synthesized, and demonstrated an apparent odd–even effect in RTP lifetime never observed before. Abstract : The odd–even effect is utilized to rationally design organic luminogens with the room temperature phosphorescence (RTP) effect. By just simply modifying the different alkyl substituents, the phenothiazine 5, 5-dioxide derivatives exhibit totally different RTP properties, with the best performance achieved byCS-C3 H7 having a phosphorescence lifetime of up to 327 ms. Furthermore, excitation-free phosphorescence imaging in living mice has been successfully realized, opening up a new avenue to promote the RTP effect in purely organic luminogens as well as the corresponding application in bio-imaging.