Observation of cascade f → d → f energy transfer in sensitizing near-infrared (NIR) lanthanide complexes containing the Ru(ii) polypyridine metalloligand. (27th April 2016)

• Record Type: Journal Article
• Authors: Zhang, Lu-Yin; Li, Kang; Pan, Mei; Fan, Ya-Nan; Wang, Hai-Ping; Su, Cheng-Yong
• Is Part Of: New journal of chemistry. Volume 40:Number 6(2016:Jun.)
• Page Start: 5379
• Page End: 5386
• Publication Date: 2016-04-27
• Subjects: Chemistry -- Periodicals; Chimie -- Périodiques; 540
• DOI: 10.1039/c6nj00089d
• Languages: English
• ISSNs: 1144-0546

Abstract

Abstract : A possible approach to achieve multiple f → d, d → f and cascade f → d → f energy transfer processes in heteronuclear Ru–Ln and Ln1–Ru–Ln2 complexes. Abstract : Distinguishable d → f or f → d energy transfer processes depending on lanthanide ions are observed in isomorphous d–f heterometallic complexes containing the Ru(ii ) metalloligand (LRu ), which lead to sensitized NIR emission (for Nd 3+ and Yb 3+ ) or enhanced red emission of LRu (for Eu 3+ and Tb 3+ ), and represent the first eye-detectable evidence of f → d energy transfer processes in Ln–Ru bimetallic complexes. Based on the systematic luminescence and decay lifetime study, cascade f → d → f energy transfer has been proposed in Ln1–Ru–Ln2 trimetallic systems for improved NIR sensitization.