Abstract
Herein, we report the design and synthesis of a new organic ligand, 9,11,20,22-tetraazatetrapyridotetraazatetrapyrido[3,2-a:2́3́-c:3́́,2́́-l:2́́́,3́́́-n] pentacene (TATPP), and the corresponding europium complex, [Eu2 (TTA)6 (TATPP)]. The lifetimes of 5D0-7F2 of Eu3+ in the complex were examined using time-resolved spectroscopic analysis. The results showed that [Eu2 (TTA)6(TATPP)] was a conjugated complex, emitting remarkably strong red luminescence having the lifetime values 3.25 × 106 M−1. Further, thermo gravimetric studies and photo luminiscent properties of the Europium complex was studied. It was observed that the europium complex had good thermal stability.
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