Premium
Effect of single variable factor of electron‐acceptor on the luminescence quantum yield of terbium complex
Author(s) -
Liu Min,
Tao Peng,
Chen Yun,
Jiang Yefei,
Li Ling,
Ding Liwen,
Zhao Yongli
Publication year - 2021
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.202000398
Subject(s) - terbium , luminescence , quantum yield , substituent , chemistry , lanthanide , ligand (biochemistry) , acceptor , photochemistry , electron acceptor , electron donor , crystallography , materials science , fluorescence , medicinal chemistry , ion , organic chemistry , physics , biochemistry , receptor , optoelectronics , quantum mechanics , condensed matter physics , catalysis
Two series of terbium complexes of Tb 2 (4‐BMBA) 6 (phen) 2 (Tb−Br, 4‐BMBA=4‐Br‐3‐methylbenzoic acid, phen=1,10‐phenanthroline) and Tb 2 (4‐IMBA) 6 (phen) 2 (Tb−I, 4‐IMBA=4‐I‐3‐methylbenzoic acid) are synthesized by varying the single factor of electron‐acceptor property of substituent group Br and I at para ‐position of 3‐methylbenzoic acid. They crystalize in the same space group, ligand and metal ions are arranged in the same mode. Interestingly, the luminescence quantum yield (QY) of Tb−Br is greater than Tb−I, indicating that weaker electron‐acceptor group of I at para‐position of 3‐methylbenzoic acid leads to lower luminescence QY than Br in terbium complex. This is the first work to control the single variable factor to study the substituent group property on the luminescence QY of lanthanide complex. Further study reveals that Tb−I is a multiplex sensor for Fe 2+ , Co 2+ , and Ni 2+ .