Artificial light-harvesting systems (LHSs) based on boron-difluoride (BF2) hydrazone complexes (BODIHYs). (11th January 2021)

• Record Type: Journal Article
• Authors: Singh, Vishwa Deepak; Dwivedi, Bhupendra Kumar; Kumar, Yogesh; Pandey, Daya Shankar
• Is Part Of: New journal of chemistry. Volume 45:Number 3(2021)
• Page Start: 1677
• Page End: 1685
• Publication Date: 2021-01-11
• Subjects: Chemistry -- Periodicals; Chimie -- Périodiques; 540
• DOI: 10.1039/d0nj04547k
• Languages: English
• ISSNs: 1144-0546

Abstract

Abstract : The hydrazone based BF2 –complexes (BODIHYs ; B1 –B2 ) have been synthesized and their photophysical and aggregation behavior have been established. These BODIHYs have been showed light harvesting properties in presence of RhB as acceptor. Abstract : In the quest to develop artificial light-harvesting systems (LHSs) with high energy transfer efficiency, hydrazone ligands L1–L2 and their –BF2 complexes (BODIHYs; B1 and B2 ) have been synthesized. Ligands L1 and L2 and the BODIHYs have been thoroughly characterized by various techniques ( 1 H, 13 C, 11 B, and 19 F NMR, ESI-MS, UV-vis and fluorescence). Further, the BODIHYs (B1 and B2 ) have been utilized as a new platform for artificial LHSs. It has been categorically shown that efficient artificial LHSs can be achieved by combining AIEgens B1 and B2 with rhodamine B (RhB) under aqueous conditions. In these systems B1 and B2 serve as a donor while RhB as an acceptor. The calculated energy transfer efficiency and antenna effect for the BODIHYs in combination with RhB came out to be appreciably high (B1 = 68%, 28.7; B2 = 80%, 35.5) at a donor/acceptor ratio of 25 : 1.