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Effects of phenothiazine and phenoxazine on photophysical properties of coumarin derivatives

Yuling Zhao, Yanyan Wang, Xinyu Li, Yanmei Li, Youjia Wang, and Tianzhi Yu

Lanzhou Jiaotong University, Lanzhou, China

 

E-mail: yutzh@mail.lzjtu.cn

Abstract: Two new coumarin derivatives containing phenothiazine or phenoxazine moiety, 3-(benzo[d]oxazol-2-yl)-7-(10H-phenoxazin-10-yl)coumarin (PXZ-C) and 3-(benzo[d]oxazol-2-yl)-7-(10H-phenothiazin-10-yl)coumarin (PTZ-C), were synthesized and characterized by elemental analysis, NMR spectroscopy, and MS. Their photophysical and electrochemical properties and thermal stabilities were investigated systematically. The results showed that these compounds have good thermal stability. The compound PTZ-C exhibits weak blue–green emission upon ultraviolet light excitation, whereas the compound PXZ-C displays weak blue emission.

Keywords: Synthesis ; Coumarin derivative ; Phenothiazine (PTZ) ; Phenoxazine (PXZ) ; Photoluminescence 

Full paper is available at www.springerlink.com.

DOI: 10.1007/s11696-019-00882-y

 

Chemical Papers 74 (1) 305–310 (2020)

Tuesday, July 27, 2021

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