Cyclohexane based Bis‐imine and Salicylic Acid Derived Tripodal Amide for Optical Recognition and Enrichment of Sm 3+ and Dy 3

• Published in: ChemistrySelect (Weinheim) 2023-06, Vol.8 (22)
• Main Authors: Shyam, Tandrim, Changdar, Sutapa, Das, Debasis
• Format: Article
• Language: English
• ISSN: 2365-6549; 2365-6549
• DOI: 10.1002/slct.202300814

Single crystal X‐ray structurally characterized bis‐imine derivative ( P1) selectively recognizes Sm 3+ in DMSO‐water (1 : 6, v/v) media. On the other hand, salicylic acid derived tripodal amide ( P2 ) efficiently detects Sm 3+ and Dy 3+ in DMSO‐water (1 : 5, v/ v) media. In both cases, Sm 3+ emits intense pink light while Dy 3+ emits yellow light. The P1 experiences 42‐fold fluorescence enhancement in presence of Sm 3+ . The P2 experiences 36‐fold and 23‐fold fluorescence enhancement in presence of Sm 3+ and Dy 3+ respectively. The limit of detections (LODs) for Sm 3+ are 9.2×10 −8  M (by P1 ) and 1.04×10 −7  M (by P2 ) while it is 9.67×10 −7  M for Dy 3+ (by P2 ). The P1 assisted enrichment of Sm 3+ is encouraging.